#m101 — Public Fediverse posts

At 21 million light-years away, #M101 is one of the closest “face-on” spiral galaxies to us. With that in mind, Hubble’s ultraviolet, visible, and near-infrared data were taken as part of studies to find out more about its stellar population and galactic structure.

https://knowledgezone.co.in/kbits/6a27c2159f759bc3caf7ab1f

Das Licht war 22 Millionen Jahre unterwegs, bevor es von mir eingefangen wurde. Oder wie mein Sohn sagte: "Da war Merz noch in der Schule..."
#astrophotography #m101 #depol

M101 and neighbors: Upper right: The Pinwheel Galaxy M101 Lower left: dwarf galaxy NGC 5474. Note the offset nucleus from gravitational interaction with 101. Upper left: dwarf galaxy NGC 5477 All around 21 million light years away. #astrophotography #seestar #m101 #ngc5474 #ngc5477

The Pinwheel Galaxy M101, about 21 million light years away. On the left edge above center is a companion dwarf galaxy, NGC 5477. #astrophotography #seestar #m101 #ngc5477

The Pinwheel Galaxy (M101) is a face-on spiral galaxy located 21 million ly away in Ursa Major.

Beyond its striking appearance, M101 is home to over 1,200 catalogued star-forming regions, an ultra-luminous X-ray binary system and around 150 globular clusters.

#astrophotography #astronomy #nightsky #galaxy #M101 #photography

M101 - Pinwheel Galaxy: a spiral galaxy 21 million light-years away.
ZWO Seestar S30.
150mm, f5, 1592 exposures of 10’’.
#telescope #telescopes #zwo #zwoasi #zwoseestar #zwoseestars30 #seestar #seestars30 #astro #astrophoto #astrophotos #astrophotography #astrophotographer #spacephotography #astronomy #spaceexploration #nasa #universe #space #deepsky #deepspace #galaxy #galaxies #pinwheel #pinwheelgalaxy #m101 #messier101 #messier

Une nouvelle EPO créée par des Chinois et des Biélorusses à partir de sa découverte ? « Du fantasme » dit ce Français https://www.cyclisme-dopage.com/dossierdefond/2025-12-22-ouest-france-fr.htm #cyclisme #dopage #verarénicole #EPO #FranckZal #M101 #Hemarina

First serious effort with the Seestar S50. 229 minutes of data in 19.72 SQM skies. Even caught 14th magnitude background galaxy NGC 5477. No post processing by me, it's all the Seestar. #astronony #astrophotography #seestar #M101

#Messier101
#Astronomy #Picture of the Day

https://apod.nasa.gov/apod/ap250516.html

#APOD #M101

M101 - The Pinwheel Galaxy.
ZWO Seestar S50.
250mm, f5, 1080 exposures of 10’’.
#telescope #telescopes #zwo #zwoasi #zwoseestar #zwoseestars50 #seestar #seestars50 #astro #astrophoto #astrophotos #astrophotography #astrophotographer #spacephotography #astronomy #spaceexploration #nasa #universe #space #deepsky #deepspace #galaxy #galaxies #pinwheel #pinwheelgalaxy #m101 #messier101 #messier

Pinwheel Galaxy (M101) - May 8 2024 🪐

#astrophotography #curiosity #m101 #mars #mastcam #msl #pinwheelgalaxy #rover

⏩ 3 new pictures from @kevinmgill https://commons.wikimedia.org/wiki/Special:ListFiles?limit=3&user=OptimusPrimeBot&ilshowall=1&offset=20240510110119

Astrophoto: Pinwheel Galaxy – Messier 101 – 06/23 https://astrocamp.eu/en/astrophoto-pinwheel-galaxy-messier-101-06-23/ My 2023 photo of the 21.000.000 LJ away Pinwheel Galaxy. Significantly sharper structures and rounder stars. These are the improvements of the new workflow. … #M101 #Messier101 #PinwheelGalaxy #SN2023ixf #clearskies

Hémoglobine de ver marin : c'est beau l'optimisme ! https://www.cyclisme-dopage.com/dossierdefond/2024-01-02-cyclisme-dopage-com.htm #cyclisme #dopage #M101 #Arenicola

The Pinwheel Galaxy M101
Located 25 million light-years away from Earth in the constellation Ursa Major.
This is a stack image containing over 360 individual photos.
This image has been extremely cropped.

#photo #photography #NightSky #space #M101 #PinwheelGalaxy #galaxy #stacked #Canon70D

Took ~2.5 hours of grayscale exposure on the Pinwheel Galaxy (Messier 101) as a test dataset as I evaluate PixInsight. Might try for some color tonight if the weather permits. Second image highlights the location of the lingering supernova.
#M101 #PinwheelGalaxy #galaxy #space #science

Check out the most recent post on my blog. all about capturing Supernova 2023ixf in M101. #astronomy #space #astrophotoraphy #Supernova #2023ixf #M101 #thepinwheelgalaxy https://astronomy716.blogspot.com/2023/06/chasin-sn-2023ixf-in-m-101.html

Here is some data on the change in brightness of a few past supernovae.

Luminosity of a Type II SN rises for 1-3 weeks and then declines over months.
Type II-L SNe have a steady decline rate, while Type II-P supernova exhibit an intermediate plateau period with a reduced decline rate.
The average decay rate of 0.008 mag per day is much lower than that of Type Ia SNe.

https://arxiv.org/abs/0904.0119
https://en.wikipedia.org/wiki/Type_II_supernova
#SN2023ixf #Supernova #M101
2/n

18 days after it exploded on May 19, supernova SN2023ixf in the Pinwheel Galaxy M101 seems to be dimming a bit, as all Type II SNe do, gradually over a period of several months.

Note that an increase in magnitude by 1 implies a decrease in luminosity by a factor of 2.512.
Pre-explosion mag was ~24.
See this thread https://fosstodon.org/@AkaSci/110402301121258093 for more info on SN2023ixf.
Image: https://www.virtualtelescope.eu/2023/06/07/supernova-sn-2023ixf-in-the-messier-101-spiral-galaxy-a-image-6-june-2023/ (reported mag = 10.9 on Jun 6!)
Graph: https://www.aavso.org/LCGv2/index.htm?DateFormat=Calendar&RequestedBands=&view=api.delim&ident=SN%202023ixf&delimiter=@@@
#SN2023ixf #Supernova #M101
1/n