#galileanmoons — Public Fediverse posts

Yesterday we visited the #Volkssternwarte #Köln ✨🔭 The weather was overcast, so conditions were limited, but we were still able to observe #Jupiter and its four #GalileanMoons #Io, #Europa, #Ganymede, and #Callisto.

The main #telescope is a 600 mm #Cassegrain reflector with a focal length of 5,400 mm, which enables high-magnification observations of #planets, the #Moon, double #stars, and bright planetary #nebulae.

🌍 https://www.volkssternwartekoeln.de

#Cologne #Observatory #CLT #CologneLargeTelescope

#FotoVorschlag
“Objekte die mit ‘J’ beginnen” / Things that start with “J”

Two views of Jupiter (and its Galilean moons) through my telescope.

#photography #astrophotography #jupiter #galileanmoons

On the Divergent Evolution of Io and Europa as Primordial Ocean Worlds: https://iopscience.iop.org/article/10.3847/1538-4357/ae2ebd/pdf -> New study finds that water makeup of Jupiter’s #GalileanMoons set at birth: https://www.swri.org/newsroom/press-releases/new-study-finds-water-makeup-of-jupiter-s-galilean-moons-set-birth

Two views of Jupiter through my telescope last night, taken a few hours before its closest approach to Earth (393.3 million miles/632.9 million km). I was excited to see all four Galilean moons (Ganymede, Callisto, Io, and Europa) around it as well. Not the clearest images as I don’t have the best gear or viewing conditions in light-polluted Brooklyn, but they’re better than my first attempts, and I’ll keep trying to improve.

#photography #astrophotography #jupiter #galileanmoons

A final Shot of Jupiter and the Galilean Moons
(this is a composite image)

Left to Right Europa - Io- Ganymede - Callisto
Io is above and just left of Ganymede

📷 Canon 70D - Sigma 150-600mm "C" Lens - ISO: 2000 - Aperture: f/10 - Shutter Speed: 1/2000 sec

#photo #photography #NightSky #Jupiter #GalileanMoons #JupiterMoons #planets #GiMP #Canon70D #Sigma600mmContemporary

Jupiter Tonight with Galilean Moons
Left to Right Ganymede - Io - Europa - Callisto

📷 Canon 70D _ Sigma 150-600mm Contemporary Lens - ISO: 1600 - Aperture: f/6.3 - Shutter Speed: 1/800sec 2x Teleconverter

#Photo #photography #NightSky #Jupiter #JupiterMoons #Planets #GalileanMoons #Canon70D #2xTeleconverter #GiMP #Sigma600mmContemporary

Jupiter with Europa and Callisto
(Left to Right)

📷 Canon M50 Mirrorless - Sigma 150-600 Contemporary Lens - 1/4x Teleconverter - ISO:1600 - Aperture: f/6.3 - Shutter Speed: 1/4 sec.

#photo #photography #NightSky #jupiter #JupiterMoons #GalileanMoons #mirrorless #GiMP #CamonM50 #teleconverter #Sigma600mmContemporary

Jupiter with its moons Ganymede (left) and Io (right). Captured October 9th.

#Jupiter #galileanmoons #Space #Astronomy #photography #astrophotography #space #Astrodon

Due East in tonight's sky
Jupiter and its 4 Galilean moons
From left to right - Callisto - Europa - Io and Ganymede

📷 Canon M50 mirrorless - Sigma 150-600mm Contemporary Lens - 1.4x teleconverter - ISO: 6400 - Aperture: f/6.3 - Shutter Speed: 1/13 sec

#photo #photography #NightSky #Jupiter #GalileanMoons #GiMP #Mirrorless #CanonM50 #teleconverter #Sigma600mmContemporary

Moon and Jupiter - October 1 2023 ☀️🌑🪐

#galileanmoons #halpha #jupiter #mars #mars2020 #moon #navcam #navleft

⏩ 6 new pictures from @kevinmgill https://commons.wikimedia.org/wiki/Special:ListFiles?limit=6&user=OptimusPrimeBot&ilshowall=1&offset=20231003110413

Combining astrometry and #JUICE - #EuropaClipper radio science to improve the ephemerides of the #GalileanMoons: https://arxiv.org/abs/2307.15966 -> "ground observations can fill the lack of radio science data for this specific moon [Io]. We obtained a noticeable solution improvement when exploiting the complementarity between all different observation sets. These promising simulation results thus motivate future efforts to achieve a global solution from actual JUICE and Clipper radio science data."

Jupiter and The Four Galilean Moons -- Io, Europa, Ganymede, and Callisto. - Aug 14, 2019

Canon SL2/200D - Sigma 100-300mm Super Macro APO DG - ISO 12800

#photos #photography #planets #jupiter #galileanmoons