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celestiaproject.bsky.social
Celestia
@celestiaproject.bsky.social
150 followers 21 following 120 posts
The free and open-source real-time space simulator that lets you explore our universe in three dimensions. Available on Windows, macOS, Linux, Android, and iOS

https://celestiaproject.space
https://celestia.mobi
https://github.com/CelestiaProject/Celestia
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Reposted by Celestia
apod.shinyakato.dev
🔭 Andromeda and Friends

Image Credit & Copyright: Piotr Czerski

apod.nasa.gov/apod/ap25111...
This magnificent extragalactic skyscape looks toward the Andromeda Galaxy, the closest large spiral galaxy to the Milky Way. It also accomplishes a Messier catalog trifecta by including Andromeda, cataloged as Messier 31 (M31), along with Messier 32 (M32), and Messier 110 (M110) in the same telescopic field of view. In this frame, M32 is just left of the Andromeda Galaxy's bright core with M110 below and to the right. M32 and M110 are both elliptical galaxies themselves and satellites of the larger spiral Andromeda. By combining 60 hours of broadband and narrowband image data, the deep telescopic view also reveals tantalizing details of dust lanes, young star clusters, and star-forming regions along Andromeda's spiral arms, and faint, foreground clouds of glowing hydrogen gas. For now, Andromeda and friends are some 2.5 million light-years from our own large spiral Milky Way.
November 15, 2025 at 8:00 AM
celestiaproject.bsky.social
Celestia mobile 1.9.2 for Apple devices has been released. This is a content update.
Download from GitHub
November 3, 2025 at 1:27 AM
celestiaproject.bsky.social
Celestia mobile 1.9.2 for Android devices has been released. This is a content update.
Download from GitHub
November 3, 2025 at 1:26 AM
Reposted by Celestia
apod.shinyakato.dev
🔭 Two Tails of Comet Lemmon

Image Credit: Massimo Penna

star.ucl.ac.uk/~apod/apod/a...
A dark sky shows bright comet with its tails extending diagonally from the lower left. Two tails are visible for the comet -- a long blue tail and a shorter wider white tail. Oddly, a wiggly tan stream appears to be a third tail -- but is actually the dust from a dissipated meteor. Please see the explanation for more detailed information.
October 27, 2025 at 8:00 AM
Reposted by Celestia
apod.shinyakato.dev
🔭 Webb's Rho Ophiuchi

Image Credit: NASA, ESA, CSA, STScI, Klaus Pontoppidan (STScI),

www.star.ucl.ac.uk/~apod/apod/a...
A mere 390 light-years away, Sun-like stars and future planetary systems are forming in the Rho Ophiuchi molecular cloud complex, the closest star-forming region to our fair planet. The James Webb Space Telescope's NIRCam peered into the nearby natal chaos to capture this infrared image at an inspiring scale. The frame spans less than a light-year across the Rho Ophiuchi region and contains about 50 young stars. Brighter stars clearly show Webb's characteristic pattern of diffraction spikes. Huge jets of shocked molecular hydrogen blasting from newborn stars are red in the image, with the large, yellowish dusty cavity carved out by the energetic young star near its centre. Near some stars in the stunning image are shadows cast by their protoplanetary disks. The spectacular cosmic snapshot was released in 2023 to celebrate the successful first year of Webb's exploration of the Universe.
October 25, 2025 at 8:32 AM
celestiaproject.bsky.social
Celestia mobile 1.9.1 for Apple devices has been released. This is a content update which also adds support for iOS/iPadOS/macOS 26. Version 1.9.0 for Apple devices had the same changelog.
Download from GitHub
October 1, 2025 at 5:29 AM
celestiaproject.bsky.social
Celestia mobile 1.9.0 for Android devices has been released. This is a content update.
Download from GitHub
October 1, 2025 at 5:25 AM
celestiaproject.bsky.social
Celestia mobile 1.8.9 for Android devices has been released. This update fixes a bug where the 'Go' button would be missing on installed add-ons.
Full changelog and download available on GitHub
September 19, 2025 at 1:38 PM
celestiaproject.bsky.social
Celestia mobile 1.8.8 for Apple devices has been released. This update includes content updates, a new camera setting, bugfixes and general improvements.
Full changelog and download available on GitHub
August 13, 2025 at 12:13 AM
celestiaproject.bsky.social
Celestia mobile 1.8.8 for Android devices has been released. This update includes content updates, a new camera setting, bugfixes and general improvements.
Full changelog and download available on GitHub
August 13, 2025 at 12:07 AM
celestiaproject.bsky.social
Celestia mobile 1.8.7 for Apple devices has been released. This update includes Lua fixes, constellation line fading revision, changes to comet tail size calculation, atmosphere updates, and other minor fixes and additions.
Full changelog and download available on GitHub
July 12, 2025 at 3:37 AM
celestiaproject.bsky.social
Celestia mobile 1.8.7 for Android devices has been released. This update includes Lua fixes, constellation line fading revision, changes to comet tail size calculation, atmosphere updates, and other minor fixes and additions.
Full changelog and download available on GitHub
July 12, 2025 at 3:35 AM
celestiaproject.bsky.social
Celestia mobile 1.8.6 for Apple devices has been released. This update fixes some minor bugs.
Full changelog and download available on GitHub
June 29, 2025 at 3:54 AM
celestiaproject.bsky.social
Celestia mobile 1.8.5 for Apple devices has been released. This update fixes an issue with the context menu not loading or actions not working.
Download from GitHub
June 24, 2025 at 11:47 PM
celestiaproject.bsky.social
Celestia mobile 1.8.4 for Apple devices has been released. This update includes updates to the exoplanet catalog, minor data updates, and gyroscope support. 1.8.3 was also released and has the same changelog.
Download from GitHub
June 23, 2025 at 3:58 AM
celestiaproject.bsky.social
Celestia mobile 1.8.3 for Android devices has been released. This update includes updates to the exoplanet catalog, minor data updates, and gyroscope support.
Download from GitHub
June 23, 2025 at 3:56 AM
celestiaproject.bsky.social
Celestia mobile 1.8.2 for Apple devices has been released. This update includes content updates, better temperature calculation, revisions and corrections, and other minor changes.
Full changelog and download available on GitHub
June 3, 2025 at 12:46 AM
celestiaproject.bsky.social
Celestia mobile 1.8.2 for Android devices has been released. This update includes content updates, better temperature calculation, revisions and corrections, and other minor changes.
Full changelog and download available on GitHub
June 3, 2025 at 12:42 AM
celestiaproject.bsky.social
Celestia mobile 1.8.1 for Apple devices has been released. This update fixes InfoURLs for exoplanets.
[Download from GitHub(github.com/celestiamobi...)
May 9, 2025 at 12:40 AM
celestiaproject.bsky.social
thinking about bringing back screenshot of the day to this account and the twitter account. just not sure how to set up a system through which people can submit their screenshots
May 3, 2025 at 9:24 AM
Reposted by Celestia
apod.shinyakato.dev
🔭 Titan: Moon over Saturn

Image Credit: NASA, JPL-Caltech, Space Science Institute

apod.nasa.gov/apod/ap25050...
Like Earth's moon, Saturn's largest moon Titan is locked in synchronous rotation with its planet. This mosaic of images recorded by the Cassini spacecraft in May of 2012 shows its anti-Saturn side, the side always facing away from the ringed gas giant. The only moon in the solar system with a dense atmosphere, Titan is the only solar system world besides Earth known to have standing bodies of liquid on its surface and an earthlike cycle of liquid rain and evaporation. Its high altitude layer of atmospheric haze is evident in the Cassini view of the 5,000 kilometer diameter moon over Saturn's rings and cloud tops. Near center is the dark dune-filled region known as Shangri-La. The Cassini-delivered Huygens probe rests below and left of center, after the most distant landing for a spacecraft from Earth.
May 3, 2025 at 8:00 AM
Reposted by Celestia
apod.shinyakato.dev
🔭 IC 418: The Spirograph Nebula

Image Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA); Acknowledgement: R. Sahai (JPL) et al.

apod.nasa.gov/apod/ap25042...
A complex orange and purple nebula with a complex texture is shown in front of a dark starfield. Please see the explanation for more detailed information.
April 27, 2025 at 8:00 AM
Reposted by Celestia
exploration.esa.int
👀 Spot the European spacecraft that relays the most data from Mars to Earth: around 200 megabytes per day.

🛰️ @esa.int's Trace Gas Orbiter is the youngest spacecraft of the Mars Relay Network.

🎥 Check this cool NASA interactive feature: science.nasa.gov/mars/mars-re...
April 29, 2025 at 12:59 PM
celestiaproject.bsky.social
Celestia mobile 1.8.0 for Apple devices has been released. This update fixes InfoURLs for exoplanets.
Download from GitHub
April 29, 2025 at 11:47 AM
celestiaproject.bsky.social
Celestia mobile 1.8.0 for Android devices has been released. This update fixes InfoURLs for exoplanets.
Download from GitHub
April 29, 2025 at 11:45 AM