#apod — Public Fediverse posts

Spettacolo!

https://apod.nasa.gov/apod/ap260528.html

#apod #photography #astronomy #fotografia #astronomia #astrofotografia #nebulosa

🌠 Space Image of the Day: NGC 1514: The Crystal Ball Nebula 🗓️ 2026-05-28 What do you see in this crystal ball? The featured image shows NGC 1514, known as the Crystal Ball Nebula, observed by the Gemini North telescope on Maunakea, in Hawai'i. NGC... #NASA #APOD #Space #Astronomy #Science

2026 May 27

PK 164 +31.1: The Headphone Nebula
* Image Credit & Copyright: Bernard Miller
https://www.facebook.com/bernard.miller.752/
* Text: Keighley Rockcliffe (NASA GSFC, UMBC CSST, CRESST II)
https://kerockcliffe.com/

Explanation:
What is a pair of headphones doing in the sky? Today’s image features the Headphone Nebula, also known as PK 164 +31.1 or Jones-Emberson 1. This planetary nebula, the remnant of a dying Sun-like star, faintly occupies an angular region of the Lynx constellation about 1/5th the diameter of the full moon. The red and blue-ish green colors trace hydrogen and oxygen atoms, respectively, that have been excited and ionized by the nebula's central white dwarf. The headphone shape, where two lobes of hydrogen puncture the inner region of oxygen, adds this object to a long list of oddly shaped nebulae. The morphology of such strange nebulae hint at the presence of a stellar or planetary companion, which can stir the material flowing out from the dying star. You can listen to Hubble and JWST sonifications of planetary nebulae through your very own headphones!
https://apod.nasa.gov/apod/ap121030.html
https://apod.nasa.gov/apod/ap230224.html
https://astronomy.swin.edu.au/cosmos/*/Planetary+Nebulae
https://science.nasa.gov/universe/stars/
https://articles.adsabs.harvard.edu/pdf/2011JBAA..121..369M
https://astronomy.swin.edu.au/cosmos/a/Angular+Diameter
https://noirlab.edu/public/education/constellations/lynx/
https://imagine.gsfc.nasa.gov/science/toolbox/atom.html
https://imagine.gsfc.nasa.gov/science/objects/dwarfs1.html
https://www.space.com/13093-strange-nebula-shapes-images-gallery.html
https://www.sciencenews.org/article/stellar-winds-how-planetary-nebulae-stunning-shapes
https://science.nasa.gov/mission/hubble/multimedia/sonifications/
https://science.nasa.gov/mission/webb/sonifications/
https://www.nasa.gov/data-sonifications/

https://apod.nasa.gov/apod/ap260527.html

#space #nebula #astrophotography #photography #science #astronomy #physics #nature #NASA #apod

2026 May 27

PK 164 +31.1: The Headphone Nebula
* Image Credit & Copyright: Bernard Miller
https://www.facebook.com/bernard.miller.752/
* Text: Keighley Rockcliffe (NASA GSFC, UMBC CSST, CRESST II)
https://kerockcliffe.com/

Explanation:
What is a pair of headphones doing in the sky? Today’s image features the Headphone Nebula, also known as PK 164 +31.1 or Jones-Emberson 1. This planetary nebula, the remnant of a dying Sun-like star, faintly occupies an angular region of the Lynx constellation about 1/5th the diameter of the full moon. The red and blue-ish green colors trace hydrogen and oxygen atoms, respectively, that have been excited and ionized by the nebula's central white dwarf. The headphone shape, where two lobes of hydrogen puncture the inner region of oxygen, adds this object to a long list of oddly shaped nebulae. The morphology of such strange nebulae hint at the presence of a stellar or planetary companion, which can stir the material flowing out from the dying star. You can listen to Hubble and JWST sonifications of planetary nebulae through your very own headphones!
https://apod.nasa.gov/apod/ap121030.html
https://apod.nasa.gov/apod/ap230224.html
https://astronomy.swin.edu.au/cosmos/*/Planetary+Nebulae
https://science.nasa.gov/universe/stars/
https://articles.adsabs.harvard.edu/pdf/2011JBAA..121..369M
https://astronomy.swin.edu.au/cosmos/a/Angular+Diameter
https://noirlab.edu/public/education/constellations/lynx/
https://imagine.gsfc.nasa.gov/science/toolbox/atom.html
https://imagine.gsfc.nasa.gov/science/objects/dwarfs1.html
https://www.space.com/13093-strange-nebula-shapes-images-gallery.html
https://www.sciencenews.org/article/stellar-winds-how-planetary-nebulae-stunning-shapes
https://science.nasa.gov/mission/hubble/multimedia/sonifications/
https://science.nasa.gov/mission/webb/sonifications/
https://www.nasa.gov/data-sonifications/

https://apod.nasa.gov/apod/ap260527.html

#space #nebula #astrophotography #photography #science #astronomy #physics #nature #NASA #apod

2026 May 27

PK 164 +31.1: The Headphone Nebula
* Image Credit & Copyright: Bernard Miller
https://www.facebook.com/bernard.miller.752/
* Text: Keighley Rockcliffe (NASA GSFC, UMBC CSST, CRESST II)
https://kerockcliffe.com/

Explanation:
What is a pair of headphones doing in the sky? Today’s image features the Headphone Nebula, also known as PK 164 +31.1 or Jones-Emberson 1. This planetary nebula, the remnant of a dying Sun-like star, faintly occupies an angular region of the Lynx constellation about 1/5th the diameter of the full moon. The red and blue-ish green colors trace hydrogen and oxygen atoms, respectively, that have been excited and ionized by the nebula's central white dwarf. The headphone shape, where two lobes of hydrogen puncture the inner region of oxygen, adds this object to a long list of oddly shaped nebulae. The morphology of such strange nebulae hint at the presence of a stellar or planetary companion, which can stir the material flowing out from the dying star. You can listen to Hubble and JWST sonifications of planetary nebulae through your very own headphones!
https://apod.nasa.gov/apod/ap121030.html
https://apod.nasa.gov/apod/ap230224.html
https://astronomy.swin.edu.au/cosmos/*/Planetary+Nebulae
https://science.nasa.gov/universe/stars/
https://articles.adsabs.harvard.edu/pdf/2011JBAA..121..369M
https://astronomy.swin.edu.au/cosmos/a/Angular+Diameter
https://noirlab.edu/public/education/constellations/lynx/
https://imagine.gsfc.nasa.gov/science/toolbox/atom.html
https://imagine.gsfc.nasa.gov/science/objects/dwarfs1.html
https://www.space.com/13093-strange-nebula-shapes-images-gallery.html
https://www.sciencenews.org/article/stellar-winds-how-planetary-nebulae-stunning-shapes
https://science.nasa.gov/mission/hubble/multimedia/sonifications/
https://science.nasa.gov/mission/webb/sonifications/
https://www.nasa.gov/data-sonifications/

https://apod.nasa.gov/apod/ap260527.html

#space #nebula #astrophotography #photography #science #astronomy #physics #nature #NASA #apod

2026 May 27

PK 164 +31.1: The Headphone Nebula
* Image Credit & Copyright: Bernard Miller
https://www.facebook.com/bernard.miller.752/
* Text: Keighley Rockcliffe (NASA GSFC, UMBC CSST, CRESST II)
https://kerockcliffe.com/

Explanation:
What is a pair of headphones doing in the sky? Today’s image features the Headphone Nebula, also known as PK 164 +31.1 or Jones-Emberson 1. This planetary nebula, the remnant of a dying Sun-like star, faintly occupies an angular region of the Lynx constellation about 1/5th the diameter of the full moon. The red and blue-ish green colors trace hydrogen and oxygen atoms, respectively, that have been excited and ionized by the nebula's central white dwarf. The headphone shape, where two lobes of hydrogen puncture the inner region of oxygen, adds this object to a long list of oddly shaped nebulae. The morphology of such strange nebulae hint at the presence of a stellar or planetary companion, which can stir the material flowing out from the dying star. You can listen to Hubble and JWST sonifications of planetary nebulae through your very own headphones!
https://apod.nasa.gov/apod/ap121030.html
https://apod.nasa.gov/apod/ap230224.html
https://astronomy.swin.edu.au/cosmos/*/Planetary+Nebulae
https://science.nasa.gov/universe/stars/
https://articles.adsabs.harvard.edu/pdf/2011JBAA..121..369M
https://astronomy.swin.edu.au/cosmos/a/Angular+Diameter
https://noirlab.edu/public/education/constellations/lynx/
https://imagine.gsfc.nasa.gov/science/toolbox/atom.html
https://imagine.gsfc.nasa.gov/science/objects/dwarfs1.html
https://www.space.com/13093-strange-nebula-shapes-images-gallery.html
https://www.sciencenews.org/article/stellar-winds-how-planetary-nebulae-stunning-shapes
https://science.nasa.gov/mission/hubble/multimedia/sonifications/
https://science.nasa.gov/mission/webb/sonifications/
https://www.nasa.gov/data-sonifications/

https://apod.nasa.gov/apod/ap260527.html

#space #nebula #astrophotography #photography #science #astronomy #physics #nature #NASA #apod

Astronomy Picture of the Day

A Martian Eclipse: Phobos Crosses the Sun

Credit: NASA, JPL-Caltech, ASU MSSS, SSI

https://apod.nasa.gov/apod/ap260524.html

#APOD #Mars #Phobos #Perseverance

A Near-Full #Rotation of #Uranus
#Astronomy #Picture of the Day

https://apod.nasa.gov/apod/ap260312.html
https://www.youtube.com/watch?v=3jsn1829OPw

#APOD

#MessierCraters in #Stereo
#Astronomy #Picture of the Day

https://apod.nasa.gov/apod/ap260509.html

#APOD #Craters #Moon #Apollo11

#MessierCraters in #Stereo
#Astronomy #Picture of the Day

https://apod.nasa.gov/apod/ap260509.html

#APOD #Craters #Moon #Apollo11

#MessierCraters in #Stereo
#Astronomy #Picture of the Day

https://apod.nasa.gov/apod/ap260509.html

#APOD #Craters #Moon #Apollo11

#MessierCraters in #Stereo
#Astronomy #Picture of the Day

https://apod.nasa.gov/apod/ap260509.html

#APOD #Craters #Moon #Apollo11

#MessierCraters in #Stereo
#Astronomy #Picture of the Day

https://apod.nasa.gov/apod/ap260509.html

#APOD #Craters #Moon #Apollo11

APOD: 2025 May 19 – Charon Flyover from New Horizons
https://apod.nasa.gov/apod/ap250519.html

#Astronomy #Charon #APOD #NewHorizons

The Long Wispy #Tail of #CometR3 (PanSTARRS)
#Astronomy #Picture of the Day

https://apod.nasa.gov/apod/ap260414.html

#APOD #Comet

2026 May 15

Unraveling NGC 3169
* Image Credit & Copyright: Simone Curzi and the ShaRA Team
https://app.astrobin.com/u/MRWSKYLOVER?i=0ym89c#gallery
https://astrotrex.wordpress.com/2024/05/22/shara8-2-the-galaxy-duo/

Explanation:
Spiral galaxy NGC 3169 looks to be unraveling like a ball of cosmic yarn. It lies some 70 million light-years away, south of bright star Regulus toward the faint constellation Sextans. Wound up spiral arms are pulled out into sweeping tidal tails as NGC 3169 (left) and neighboring NGC 3166 interact gravitationally. Eventually the galaxies will merge into one, a common fate even for bright galaxies in the local universe. Drawn out stellar arcs and plumes are clear indications of the ongoing gravitational interactions across the deep and colorful galaxy group photo. The telescopic frame spans about 20 arc minutes or about 400,000 light-years at the group's estimated distance, and includes smaller, bluish NGC 3165 to the right. NGC 3169 is also known to shine across the spectrum from radio to X-rays, harboring an active galactic nucleus that is the site of a supermassive black hole.
https://www.eso.org/public/videos/eso1114a/
https://noirlab.edu/public/images/noao-ngc3166/
https://apod.nasa.gov/apod/ap120604.html
http://www.atlasoftheuniverse.com/galgrps/leoii.html
https://app.astrobin.com/u/MRWSKYLOVER?i=e4w7jc
http://arxiv.org/abs/0801.4382

https://apod.nasa.gov/apod/ap260515.html

#space #galaxy #astrophotography #photography #science #astronomy #nature #esa #NASA #education #apod

TOPIC> THE Messier Catalog

2026 May 14

Messier Catalog at Uniform Scale
* Image Credit: Sylvain Villet
https://app.astrobin.com/u/SylvainV
https://app.astrobin.com/forum/topic/191541
* Text: Cecilia Chirenti (NASA GSFC, UMCP, CRESST II)
https://science.gsfc.nasa.gov/sci/bio/cecilia.chirenti

Explanation:
What are some of the most interesting astronomical objects you can see in the night sky, armed with a good pair of binoculars or a small telescope? If you live in the Northern Hemisphere, you can look for the very popular objects in the Messier Catalog (most of them, but not all, are also visible from the Southern half of the Earth). The featured image shows all 110 objects in the catalog, shown at uniform scale. Charles Messier created the catalog in the 18th Century. He was interested in comets, and his catalog was a list of known comet-like "objects to avoid" in the sky when observing or hunting for comets. The deep sky objects in the catalog include a supernova remnant (the Crab Nebula, M1), other galaxies (such as Andromeda, M31), nebulae (e.g. the Orion Nebula, M42, a star forming region) and stellar clusters (such as the Pleiades, M45, a bright young open cluster).
https://apod.nasa.gov/apod/ap000311.html
!!!explore> https://science.nasa.gov/specials/apps/hubble-skymap/messier/
https://app.astrobin.com/u/SylvainV?i=9cdwrv
https://science.nasa.gov/people/explore-the-night-sky-hubbleatms-messier-catalog-bio/
https://coolcosmos.ipac.caltech.edu/page/comets
https://en.wikipedia.org/wiki/Messier_object
https://en.wikipedia.org/wiki/Deep-sky_object
https://en.wikipedia.org/wiki/Supernova_remnant
https://apod.nasa.gov/apod/ap250508.html
https://apod.nasa.gov/apod/ap251115.html
https://apod.nasa.gov/apod/ap250420.html
https://apod.nasa.gov/apod/ap260223.html
https://esahubble.org/wordbank/open-cluster/

https://apod.nasa.gov/apod/ap260514.html

#space #messier #astrophotography #photography #science #nature #physics #NASA #ESA #apod

#NGC188: Old Cluster in the New General Catalog
#Astronomy #Picture of the Day

https://apod.nasa.gov/apod/ap260513.html

#APOD

#apod 2026-05-13 NGC 188: Old Cluster in the New General Catalog Image Credit: Neven Krcmarek Web page: https://apod.nasa.gov/apod/ap260513.html

Astronomy photo of the day: NGC 188: Old Cluster in the New General Catalog.
Copyright: Neven Krcmarek

Explanation: The New General Catalog of star clusters and nebulae really isn't so new. In fact, it was published in 1888 - an effort by J. L. E

#APOD

La structure de l'Univers à grande échelle
https://www.cidehom.com/apod.php?_date=260423
#apod #image #Univers #science #physique #astronomie #astrophysique #cosmos #cosmologie #tech #structure #DESI #observatoire #matièrenoire #énergienoire #NASA

Une comète? What else?
(#APOD du jour : https://apod.nasa.gov/apod/ap260512.html)

Résumé rapide en français de la légende :
La comète R3 PanSTARRS est une ancienne relique de notre système solaire. Sa queue bleutée (et un peu verte aussi ici) se forme lorsque les gaz émis par son noyau sont ionisés par le Soleil. Les comètes peuvent nous révéler l'histoire de la formation des planètes et peut-être aussi celle de l'apparition de la vie.

2026 May 12

The Conjunction of Comet R3 PanSTARRS and the Orion Nebula
* Image Credit & Copyright: Julien De Winter, Sascha Ebeler
https://www.instagram.com/dwj85
https://www.instagram.com/sascha.ebeler
* Text: Keighley Rockcliffe (NASA GSFC, UMBC CSST, CRESST II)
https://kerockcliffe.com/
https://science.gsfc.nasa.gov/sci/bio/keighley.e.rockcliffe
https://csst.umbc.edu/directory/
https://cresst2.umd.edu/

Explanation:
Today’s composite image features something old, something new, something borrowed, and something blue! Comet R3 PanSTARRS, streaking across the right of the image, likely originated from the Oort Cloud, meaning it is an old Solar System relic from billions of years ago. It’s bright extended ion tail glows blue as the gas escaping the comet’s core is ionized by sunlight. Astronomers are fascinated by comets for all sorts of reasons: comet compositions are untouched time capsules containing the building blocks of Solar System planets; comets may have delivered water to the young Earth; the behavior of cometary tails shed light on solar wind and radiation interactions. The background mosaic, featuring the Orion Nebula (M42), was taken over two nights of observation with the comet captured on the third night. The Orion Nebula is our nearest stellar nursery and, at about 2 million years old, is our something (relatively) new! Now at around 127.5 million kilometers from Earth, we wave goodbye to the borrowed Comet R3 PanSTARRS as it leaves the Solar System.
https://www.instagram.com/p/DYL5zg5Ak78/?utm_source=ig_web_copy_link&igsh=MzRlODBiNWFlZA==
https://en.wikipedia.org/wiki/Something_old
https://apod.nasa.gov/apod/ap260412.html
https://science.nasa.gov/solar-system/oort-cloud/facts/
https://apod.nasa.gov/apod/ap260414.html
https://science.nasa.gov/solar-system/comets/facts/
https://www.jpl.nasa.gov/news/comet-provides-new-clues-to-origins-of-earths-oceans/
https://www.mos.org/article/getting-know-orion-great-nebula
https://science.nasa.gov/mission/hubble/science/explore-the-night-sky/hubble-messier-catalog/messier-42/
https://apod.nasa.gov/apod/ap241104.html
https://www.space.com/orion-nebula
https://theskylive.com/c2025r3-info

https://apod.nasa.gov/apod/ap260512.html

#space #comets #astrophotography #photography #science #astronomy #nature #NASA #education #apod

#APOD with another great one today.

https://apod.nasa.gov/apod/ap260512.html

The #Conjunction of #CometR3PanSTARRS and the #OrionNebula
#Astronomy #Picture of the Day

https://apod.nasa.gov/apod/ap260512.html

#APOD #Comet #Nebula

Spettacolare!

https://apod.nasa.gov/apod/astropix.html

#photography #apod #astronomy #fotografia #cometa #nebulosa #orione

Astronomy photo of the day: The Conjunction of Comet R3 PanSTARRS and the Orion Nebula.
Copyright: Julien De Winter,
Sascha Ebeler

Text:
Keighley Rockcliffe
(NASA
GSFC,
UMBC CSST,
CRESST II)

Explanation: Today’s composite image features something old, something new, something borrowed, and something blue. Comet R3 PanSTARRS, streaking across the right of the image, likely originated from the Oort Cloud, meaning it is an old Solar System relic from billions of years ago

#APOD

2026 May 13
NGC 188: Old Cluster in the New General Catalog
* Image Credit & Copyright: Neven Krcmarek
https://app.astrobin.com/u/NevenKrcmarek

Explanation:
The New General Catalog of star clusters and nebulae really isn't so new. In fact, it was published in 1888 - an effort by J. L. E. Dreyer to consolidate the work of astronomers William, Caroline, and John Herschel along with others into a useful single, complete catalog of astronomical discoveries and measurements. Dreyer's work was largely successful and is still important today as this famous catalog continues to lend its "NGC" to bright clusters, galaxies, and nebulae. Take for example the star cluster known as NGC 188 (item number 188 in the NGC compilation). It lies about 6,000 light-years distant in the northern constellation Cepheus and represents a galactic or open star cluster. With an age of about 7 billion years, NGC 188 is old for an open cluster. Its old, evolved red giant stars have yellowish hues in this colorful, deep sky view. NGC 188 also enjoys the designation Caldwell 1 in a modern compilation of deep sky objects. Located well above the plane of the Milky Way, and seen in the direction of planet Earth's north celestial pole, the ancient stellar group is known to some as the Polarissima Cluster.
https://en.wikipedia.org/wiki/New_General_Catalogue
https://www.lindahall.org/about/news/scientist-of-the-day/j-l-e-dreyer/
https://www.nasa.gov/history/240-years-ago-astronomer-william-herschel-identifies-uranus-as-the-seventh-planet/
https://www.rmg.co.uk/stories/space-astronomy/caroline-herschel-first-paid-female-astronomer
https://www.lindahall.org/about/news/scientist-of-the-day/john-herschel/
https://in-the-sky.org/data/catalogue.php?cat=NGC
https://en.wikipedia.org/wiki/Open_cluster
https://arxiv.org/abs/2508.09255
https://apod.nasa.gov/apod/ap990312.html
https://app.astrobin.com/i/frpv4y
https://science.nasa.gov/mission/hubble/science/explore-the-night-sky/hubble-caldwell-catalog/caldwell-1/
https://en.wikipedia.org/wiki/NGC_188

https://apod.nasa.gov/apod/ap260512.html

#space #cluster #astrophotography #photography #science #nature #NASA #esa #apod

#Moon Setting Behind #Teide #Volcano
#Astronomy #Picture of the Day

https://apod.nasa.gov/apod/ap260511.html
https://www.youtube.com/watch?v=afHfMMC-MJE

#APOD #MountTeide #CanaryIslands #Spain

#apod 2026-05-11 (video) Moon Setting Behind Teide Volcano Image Credit: El Cielo de Canarias Web page: https://apod.nasa.gov/apod/ap260511.html Content: https://www.youtube.com/embed/afHfMMC-MJE?rel=0

Astronomy photo of the day: Moon Setting Behind Teide Volcano.
Copyright: El Cielo de Canarias

Explanation: These people are not in danger. What is coming down from the left is just the Moon, far in the distance. Luna appears so large here because she is being photographed through a telescopic lens

#APOD

Watch the video here: https://www.youtube.com/embed/afHfMMC-MJE?rel=0

2026 May 11
Moon Setting Behind Teide Volcano
* Video Credit & Copyright: DanielLópez (El Cielo de Canarias)
http://www.elcielodecanarias.com/
* Music: Piano della Moon (Dan Silva)
https://vimeo.com/dansilvaworld

Explanation:
These people are not in danger. What is coming down from the left is just the Moon, far in the distance. Luna appears so large here because she is being photographed through a telescopic lens. What is moving is mostly the Earth, whose spin causes the Moon to slowly disappear behind Mount Teide, a volcano in the Canary Islands of Spain off the northwest coast of Africa. The people pictured are 16 kilometers away and many are facing the camera because they are watching the Sun rise behind the photographer. It is not a coincidence that a full moon rises just when the Sun sets because the Sun is always on the opposite side of the sky from a full moon. The featured video was made in 2018 during a full Milk Moon. The video is not time-lapse -- this was really how fast the Moon was setting.
https://en.wikipedia.org/wiki/Luna_(goddess)
https://apod.nasa.gov/apod/image/1806/Telescope_Teide.jpg
https://science.nasa.gov/earth/
https://science.nasa.gov/moon/
https://apod.nasa.gov/apod/ap260505.html
https://en.wikipedia.org/wiki/Canary_Islands
https://en.wikipedia.org/wiki/Spain
https://en.wikipedia.org/wiki/Africa
https://apod.nasa.gov/apod/image/1806/teide_volcan_video.jpg
https://science.nasa.gov/sun/facts/
https://blogmais.wordpress.com/wp-content/uploads/2008/04/imagem_ht_07-04-23.jpg
https://apod.nasa.gov/apod/ap211010.html
https://apod.nasa.gov/apod/ap240319.html
https://spaceplace.nasa.gov/all-about-the-moon/en/moon_phases.en.jpg
https://vimeo.com/272723959
https://www.csmonitor.com/Science/2010/0526/What-is-a-milk-moon-anyway
https://apod.nasa.gov/apod/ap170820.html

https://apod.nasa.gov/apod/ap260511.html

#space #earth #moon #astrophotography #photography #science #astronomy #physics #nature #NASA #apod

Comet R3 PanSTARRS and Orion
Image Credit & Copyright: Luc Perrot (TWAN)

Explanation: Orion never had a sword like this. As Comet C/2025 R3 (PanSTARRS) heads out of the inner Solar System, it is putting on quite a show for long exposure cameras. Currently seen toward the constellation of Orion the Hunter, the distant Orion Nebula is visible on the upper right. Comet R3 PanSTARRS is now showing two distinct tails: a short dust tail pointing toward the top of the image and a long and wavy ion tail trailing off toward the upper left. The ion tail points away from the Sun and glows blue from excited carbon monoxide. Large particles in the dust tail somewhat resist the radiation pressure that push them away from the Sun and so retain a bit of the comet's orbit. The dust tail shines by reflected sunlight. The featured image was taken a few days ago from France's Reunion Island in the southern Indian Ocean.

https://apod.nasa.gov/apod/ap260510.html #apod

#CometR3PanSTARRS and #Orion
#Astronomy #Picture of the Day

https://apod.nasa.gov/apod/ap260510.html

#APOD #Comet

Astronomy photo of the day: Comet R3 PanSTARRS and Orion.
Copyright: Luc Perrot
(TWAN)

Explanation: Orion never had a sword like this. As Comet C/2025 R3 (PanSTARRS) heads out of the inner Solar System, it is putting on quite a show for long exposure cameras. Currently seen toward the constellation of Orion the Hunter, the distant Orion Nebula is visible on the upper right

#APOD

Messier Craters in Stereo
Image Credit: Apollo 11, NASA; Stereo Image Copyright Patrick Vantuyne

Explanation: Many bright nebulae and star clusters in planet Earth's sky are associated with the name of astronomer Charles Messier from his famous 18th century catalog. His name is also given to these two large and remarkable craters on the Moon. Standouts in the dark, smooth lunar Sea of Fertility or Mare Fecunditatis, Messier (left) and Messier A have dimensions of 15 by 8 and 16 by 11 kilometers respectively. Their elongated shapes are explained by the extremely shallow-angle trajectory followed by an impactor, moving left to right, that gouged out the craters. The shallow impact also resulted in two bright rays of material extending along the surface to the right, beyond the picture. Intended to be viewed with red/blue glasses (red for the left eye), this striking stereo picture of the crater pair was recently created from high resolution scans of two images (AS11-42-6304, AS11-42-6305) taken during the Apollo 11 mission to the Moon.

https://apod.nasa.gov/apod/ap260509.html #apod

.. annotated version of previous post

#space #comets #astrophotography #photography #science #astronomy
#nature #NASA #education #apod

2026 May 10

Comet R3 PanSTARRS and Orion
* Image Credit & Copyright: Luc Perrot (TWAN)
https://www.lucperrot.fr/bio

Explanation:
Orion never had a sword like this. As Comet C/2025 R3 (PanSTARRS) heads out of the inner Solar System, it is putting on quite a show for long exposure cameras. Currently seen toward the constellation of Orion the Hunter, the distant Orion Nebula is visible on the upper right. Comet R3 PanSTARRS is now showing two distinct tails: a short dust tail pointing toward the top of the image and a long and wavy ion tail trailing off toward the upper left. The ion tail points away from the Sun and glows blue from excited carbon monoxide. Large particles in the dust tail somewhat resist the radiation pressure that push them away from the Sun and so retain a bit of the comet's orbit. The dust tail shines by reflected sunlight. The featured image was taken a few days ago from France's Reunion Island in the southern Indian Ocean.
https://en.wikipedia.org/wiki/C/2025_R3_(PanSTARRS)
https://apod.nasa.gov/apod/ap260420.html
https://starwalk.space/en/news/comet-c2025-r3-panstarrs
https://spaceplace.nasa.gov/constellations/en/
https://apod.nasa.gov/apod/ap250420.html
https://theskylive.com/c2025r3-info
https://spaceplace.nasa.gov/comets/en/anatomy-of-a-comet.en.jpg
https://astronomy.swin.edu.au/cosmos/*/Cometary+Dust+Tail
https://apod.nasa.gov/apod/ap220110.html
https://science.nasa.gov/sun/
http://www2.ess.ucla.edu/~jewitt/tail.html
https://science.nasa.gov/earth/earth-observatory/global-maps/carbon-monoxide/
https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcS1DfzgrmAlBOsFVYpD2zBqj6FDI5z77THEpQ&s
https://van.physics.illinois.edu/ask/listing/31796
https://apod.nasa.gov/apod/ap221227.html
https://en.wikipedia.org/wiki/France
https://youtu.be/MUEVBSiWWR8
https://en.wikipedia.org/wiki/Indian_Ocean

https://apod.nasa.gov/apod/ap260510.html

#space #comets #astrophotography #photography #science #astronomy #nature #NASA #education #apod

Astronomy photo of the day: Messier Craters in Stereo.
Copyright: Unknown

Explanation: Many bright nebulae and star clusters in planet Earth's sky are associated with the name of astronomer Charles Messier from his famous 18th century catalog. His name is also given to these two large and remarkable craters on the Moon

#APOD

2026 May 9

Messier Craters in Stereo
* Image Credit: Apollo 11, NASA
http://nssdc.gsfc.nasa.gov/planetary/lunar/apollo11info.html
http://www.nasa.gov/
Stereo Image Copyright Patrick Vantuyne
https://apollojournals.org/alsj/ApAnPaVa.html

Explanation:
Many bright nebulae and star clusters in planet Earth's sky are associated with the name of astronomer Charles Messier from his famous 18th century catalog. His name is also given to these two large and remarkable craters on the Moon. Standouts in the dark, smooth lunar Sea of Fertility or Mare Fecunditatis, Messier (left) and Messier A have dimensions of 15 by 8 and 16 by 11 kilometers respectively. Their elongated shapes are explained by the extremely shallow-angle trajectory followed by an impactor, moving left to right, that gouged out the craters. The shallow impact also resulted in two bright rays of material extending along the surface to the right, beyond the picture. Intended to be viewed with red/blue glasses (red for the left eye), this striking stereo picture of the crater pair was recently created from high resolution scans of two images (AS11-42-6304, AS11-42-6305) taken during the Apollo 11 mission to the Moon.
https://science.nasa.gov/people/explore-the-night-sky-hubbleatms-messier-catalog-bio/
http://lroc.sese.asu.edu/posts/383
http://lunarnetworks.blogspot.com/2012/04/lroc-rays-of-messier.html
https://www.jpl.nasa.gov/edu/resources/project/roverview-3-d-glasses/
http://www.lpi.usra.edu/resources/apollo/frame/?AS11-42-6304
http://www.lpi.usra.edu/resources/apollo/frame/?AS11-42-6305

https://apod.nasa.gov/apod/fap/ap260509.html

#space #moon #astrophotography #photography #science #astronomy #physics #nature #NASA #education #apod

#CometR3PanSTARRS Before #Rigel
#Astronomy #Picture of the Day

https://apod.nasa.gov/apod/ap260508.html

#APOD #Comet

Comet R3 PanSTARRS Before Rigel
Image Credit & Copyright: Jakub Kuřák & Martin Mašek (FZU of the Czech Academy of Sciences)

Explanation: Which way is Comet R3 PanSTARRS going? Not towards the star at the top of the image, because that is Rigel, which, being far in the background, is unrelated to the comet. Not through the nebula in the image middle, because that is the Witch Head Nebula and it, too, is far in the distance -- but not far from Rigel.  Not into northern skies because over the past week Comet C/2025 R3 (PanSTARRS) has moved into southern skies and is now best visible in Earth's Southern Hemisphere toward the west after sunset.  Angularly, Comet R3 PanSTARRS is slowly moving toward the upper right, night by night, and will soon be in the constellation Orion. Spatially, the comet is now headed out of our Solar System but should remain visible to cameras in southern skies for about a week. The featured image was captured last week near Cerro Paranal in Chile.

https://apod.nasa.gov/apod/ap260508.html #apod

Supernova in a Sideways Spiral
Video Credit: Hunter Outten & Kaleb Jordan
Text: Cecilia Chirenti (NASA GSFC, UMCP, CRESST II)

Explanation: A long time ago, in a distant galaxy, a massive star was destroyed in a supernova explosion. The light of this event travelled for tens of millions of years and reached Earth last week as Supernova 2026kid. The featured video shows a time-lapse over three nights of the host galaxy NGC 5907, an edge-on spiral also known as the Splinter or Knife Edge Galaxy, as the supernova appears and becomes brighter. (The occasional streaks are satellites in Earth orbit.) At its brightest, a supernova can outshine the sum of all other stars in its galaxy. Supernova 2026kid appears relatively dim, probably because we are seeing it through the edge-on disk of the galaxy. Such explosions typically happen about once per century in galaxies similar to the Milky Way, and their light can take months to fade away. The brightest supernova in recorded history was SN 1006; it is reported to have been brighter than Venus, and even visible in the sky during daytime.

https://apod.nasa.gov/apod/ap260507.html #apod

📸 Milky Way Through Otago Spires
The glowing core of our galaxy rises between two spires in Otago, New Zealand. Seen in early June skies, the Milky Way arcs upward after sunset, revealing billions of stars. A moment of perfect timing and planning.
📅 July 2, 2025
📷 Kavan Chay
🔗 https://stellarsnap.space

#APOD #MilkyWay #Astrophotography #Stars #Otago #NewZealand #Galaxy #NightSky #Astronomy #Space #Cosmos #SkyView #StellarSnap

Bom-dia :) - #APOD - Mar 30 -
Um #EclipseSolar Parcial sobre a Islândia -

https://bsky.app/profile/apodunofficial.bsky.social/post/3lll7rmkcug2l -
E se o Sol e a Lua nascessem juntos? Isso ocorreu ontem no norte da Terra sob um eclipse solar parcial...
Foi visto no nordeste da América do Norte e o noroeste da Europa, Ásia e África...

Bom-dia :) - #APOD - Mar 30 -
Um #EclipseSolar Parcial sobre a Islândia -

https://bsky.app/profile/apodunofficial.bsky.social/post/3lll7rmkcug2l -
E se o Sol e a Lua nascessem juntos? Isso ocorreu ontem no norte da Terra sob um eclipse solar parcial...
Foi visto no nordeste da América do Norte e o noroeste da Europa, Ásia e África...

Bom-dia :) - #APOD - A Partial Solar Eclipse over Iceland - Mar 30 -
Um #EclipseSolar Parcial sobre a Islândia -

https://apod.nasa.gov/apod/ap250330.html -

E se o Sol e a Lua nascessem juntos? Isso aconteceu ontem em algumas regiões do norte da Terra, quando um eclipse solar parcial ocorreu...
Foi visto no nordeste da América do Norte e o noroeste da Europa, Ásia e África.
Essa foto foi feita ontem sobre a cratera vulcânica Grábrók, na Islândia, onde grande parte do Sol ficou momentaneamente escondida...

Bom-dia :) - #APOD - A Partial Solar Eclipse over Iceland - Mar 30 -
Um #EclipseSolar Parcial sobre a Islândia -

https://apod.nasa.gov/apod/ap250330.html -

E se o Sol e a Lua nascessem juntos? Isso aconteceu ontem em algumas regiões do norte da Terra, quando um eclipse solar parcial ocorreu...
Foi visto no nordeste da América do Norte e o noroeste da Europa, Ásia e África.
Essa foto foi feita ontem sobre a cratera vulcânica Grábrók, na Islândia, onde grande parte do Sol ficou momentaneamente escondida...

#Dione and #Rhea #Ring #Transit
#Astronomy #Picture of the Day

https://apod.nasa.gov/apod/ap251122.html

#APOD

📸 Lynds Dark Nebula 1251
Also known as the Rotten Fish Nebula, LDN 1251 is a dark molecular cloud where stars are forming. It lies about 1,000 light-years away in Cepheus and spans over 25 light-years.

📅 APOD – July 10, 2025
📷 Credit: Cristiano Gualco

#APOD #NASA #LDN1251 #RottenFishNebula #DarkNebula #StarFormation #Cepheus #MilkyWay #Astrophotography #StellarNursery #Nebula #Stargazing #Astronomy #Cosmos #StellarSnap