Downloads

• Download Gaia Sky
• Download extra catalogs
• Download isosurfaces
• Download texture packs

(September 19, 2018) Current version: 2.1.2

Gaia Sky 2.1.0+ automatically downloads the base data and data packages. If the program crashes, just delete your $HOME/.gaiasky folder.

System		Package	MD5
	Linux	DEB package (60 MB) RPM package (60 MB) Linux/Unix installer (60M MB) AUR package - gaiasky	546076410167b267f6061ee793eac892 01cc45724756f9d451afb0a9cbb3e2e9 3acf29afe71266d89feb1dc1e39b4051 -
	Windows	64-bit installer (104 MB) 32-bit installer (100 MB)	2e47886d383a7f87c62ac639ebaeb90f bbf1683b4e484612e415627455069ce5
	macOS	DMG package (130 MB)	38ca00b286a5a0c4e847947854b90b21
	Archive file	TAR.GZ archive file (59 MB)	d7dcd492d73ef3377028da25f67b9575
	GIT repository	Source code

Change log  •  Detailed change log  •  Get old versions

Installation instructions

Windows installer

Download the installer and double-click on it. Follow the on-screen instructions. In Windows 8/10 SmartScreen may block the installation. If so, just click on More info and then on Run anyway.

macOS installer

Download and run the DMG file. Then follow the installer instructions.

TGZ installation

Uncompress the archive in POSIX systems using:

tar -zxvf gaiasky-[version].tar.gz

DEB package

Run the following in a terminal:

sudo dpkg -i gaiasky-[version].deb

RPM package

Run the following in a terminal:

sudo yum install gaiasky-[version].rpm

AUR package

Use any tool capable of installing packages from AUR. The package name is gaiasky. For example, with trizen:

trizen -S gaiasky

Additional Gaia DR2 catalogs (version 2.1.0+)

Latest update: 2018/09/11

Here you can find larger catalogs for download, based on Gaia DR2 data. The 'criteria' column contains the two selection criteria used in the catalog, for bright (gmag <= 13) and faint (gmag > 13) stars in parallax relative error. The Default catalog already comes bundled with Gaia Sky.

Download the desired catalog and extract it into your data folder (usually $HOME/.gaiasky/data). That's it, you are done!

Data	Criteria	Number of stars	Size (compressed)
Very small	5% / 0.5%	5.1 million 5131441	519 MB
	A very small dataset. Scanning underdensities are clearly visible due to the very strict bright star criterion (10%). Otherwise, a good dataset to explore without filling up your disk.
Small	10% / 0.5%	6.7 million 6768167	686 MB
	A reasonably small dataset. Some scanning underdensities are present due to the strict bright star criterion (10%).
Default	20% / 0.5%	7.5 million 7574316	768 MB
	The default dataset, included with the Gaia Sky download. The catalog is a trade-off between number of stars and size. Contains bright stars with parallaxes up to 20% relative error, and faint stars with 0.5% relative error.
Bright	90% / 0%	7.7 million 7742203	786 MB
	Contains only bright stars with parallax relative errors up to 90%. No faint stars (gmag > 13) are included.
Large	50% / 12.5%	97 million 96947939	9,1 GB
	This is the default large dataset. Contains about a hundred million stars, with a 50% relative error for bright stars and 12.5% for faint stars.
Very large	90% / 90%	601 million 601337906	51 GB
	Lots of stars (601 million) in this dataset. Parallax criteria are very relaxed, at 90% relative error for both bright and faint stars.
Extra large	Bayesian distances	1.33 billion 1331912037	67 GB
	This catalog is still in beta and offered only as a preview. Catalog with 1.33 billion stars (all 5-parameter sources in DR2) based on the bayesian distances paper by Bailer-Jones et al.. We are still working on getting a good artifact-free LOD structure with this catalog, so bear in mind this is not the final product.

Isosurface maps

Here you can find additional isosurface maps produced by Galaxy Map ready to use with Gaia Sky. Just extract the packages in your data folder (usually $HOME/.gaiasky/data).

File	Description	Size
Very ionizing	Very ionizing hot stars	15 MB
Some ionizing	Some ionizing hot stars	16 MB
Non-ionizing	Non-ionizing hot stars	18 MB
Non-medium-ionizing	Non-medium-ionizing hot stars	33 MB

High resolution texture packs

The installation packages do not include high resolution textures to keep the file size at bay. However, we offer a high resolution texture pack download with 4K and 8K textures which must be extracted in $GAIASKY_INSTALL_DIR/data/tex (versions previous to 2.1.0) or your data folder (for versions 2.1.0+, usually $HOME/.gaiasky/data).

• Hi-res texture pack - Version 1.5.0
• Hi-res texture pack - Versions 2.0.0 and 2.0.1
• Hi-res texture pack - Versions 2.0.2 and 2.0.3
• Hi-res texture pack - Version 2.1.0+