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Gaia is a space observatory of the European Space Agency (ESA), launched in 2013 and operated until March 2025 (planned). The spacecraft is designed for astrometry: measuring the positions, distances and motions of stars with unprecedented precision, [6] [7] and the positions of exoplanets by measuring attributes about the stars they orbit such as their apparent magnitude and color. [8]
Gaia Sky is an open-source astronomy visualisation desktop and VR program with versions for Windows, Linux and macOS.It is created and developed by Toni Sagristà Sellés in the framework of ESA's Gaia mission to create a billion-star multi-dimensional map of our Milky Way Galaxy, in the Gaia group of the Astronomisches Rechen-Institut (ZAH, Universität Heidelberg).
The Gaia catalogues are star catalogues created using the results obtained by Gaia space telescope. The catalogues are released in stages that will contain increasing amounts of information; the early releases also miss some stars, especially fainter stars located in dense star fields. [1] Data from every data release can be accessed at the ...
The limits of observation as visualized by the Milky Way's star density map. Source: Gaia spacecraft's 2021 data release. Many projects have attempted to bridge the gap in knowledge caused by the Zone of Avoidance. The dust and gas in the Milky Way cause extinction at optical wavelengths, and foreground stars can be confused with background ...
The pixelisation related to the H=4, K=3 projection has become widely used in cosmology for storing and manipulating maps of the cosmic microwave background. Gaia mission uses HEALPix as the basis for source identification. [9] An alternative hierarchical grid is the Hierarchical Triangular Mesh (HTM).
A staple of the ESA's Science Doctrine is the Cosmic Vision programme, a series of space science missions chosen by the ESA to launch through competitions, similar to NASA's Discovery and New Frontiers programmes. It succeeds the Horizon 2000 and Horizon 2000+ programmes which launched notable missions such as Huygens, Rosetta and Gaia.
Gaia BH1 (Gaia DR3 4373465352415301632) is a binary system consisting of a G-type main-sequence star and a likely stellar-mass black hole, located about 1,560 light-years (478 pc) away from the Solar System in the constellation of Ophiuchus. [4]
These activities provide approximately 40 hours of space journeys and astronomical lessons to include extensive tours of the Celestia universe, the complete life cycle of stars, the Solar System, the human space program, the Search for Extraterrestrial Intelligence (SETI), and depictions of astronomical events such as the formation of the Moon ...