Exoplanets & Exomoons

CELESTA: A Database of Habitable Zones around Nearby Stars

By Keith Cowing
Press Release
October 21, 2015
Filed under
CELESTA: A Database of Habitable Zones around Nearby Stars

Locating planets in circumstellar Habitable Zones is a priority for many exoplanet surveys. Space-based and ground-based surveys alike require robust toolsets to aid in target selection and mission planning.

We present the Catalog of Earth-Like Exoplanet Survey Targets (CELESTA), a database of Habitable Zones around 36,000 nearby stars. We calculated stellar parameters, including effective temperatures, masses, and radii, and we quantified the orbital distances and periods corresponding to the circumstellar Habitable Zones. We gauged the accuracy of our predictions by contrasting CELESTA’s computed parameters to observational data. We ascertain a potential return on investment by computing the number of Habitable Zones probed for a given survey duration. A versatile framework for extending the functionality of CELESTA into the future enables ongoing comparisons to new observations, and recalculations when updates to Habitable Zone models, stellar temperatures, or parallax data become available. We expect to upgrade and expand CELESTA using data from the Gaia mission as the data becomes available.

The Catalog of Earth-Like Exoplanet Survey TArgets (CELESTA): A Database of Habitable Zones around Nearby Stars

Colin Orion Chandler, Iain McDonald, Stephen R. Kane
(Submitted on 19 Oct 2015)

Comments: 9 pages, 11 figures, accepted for publication in the Astronomical Journal. Full data release available at this http URL
Subjects: Earth and Planetary Astrophysics (astro-ph.EP)
Cite as: arXiv:1510.05666 [astro-ph.EP] (or arXiv:1510.05666v1 [astro-ph.EP] for this version)
Submission history
From: Colin Chandler
[v1] Mon, 19 Oct 2015 20:19:30 GMT (445kb,D)

Explorers Club Fellow, ex-NASA Space Station Payload manager/space biologist, Away Teams, Journalist, Lapsed climber, Synaesthete, Na’Vi-Jedi-Freman-Buddhist-mix, ASL, Devon Island and Everest Base Camp veteran, (he/him) 🖖🏻