HD 115617 Archives

Observational HR diagram, from Hipparcos data, of stars within 10 pc of the Sun. The black box isolates the parameter range +4.0 < MV < +6.5 and +0.50 < (B-V) < +1.05 (see text) and contains the initial candidates as astrobiologically interesting stars. -- astro-ph

Astrobiology (general), Astronomy & Telescopes, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report, Stellar Cartography

Astrobiologically Interesting Stars Within 10 Parsecs Of The Sun

by Keith CowingMay 25, 2025May 24, 2025

The existence of life based on carbon chemistry and water oceans relies upon planetary properties, chiefly climate stability, and stellar properties, such as mass, age, metallicity and Galactic orbits.

Astronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report

Doppler Constraints on Planetary Companions to Nearby Sun-like Stars: An Archival Radial Velocity Survey of Southern Targets for Proposed NASA Direct Imaging Missions

by Keith CowingFebruary 22, 2023February 22, 2023

Directly imaging temperate rocky planets orbiting nearby, Sun-like stars with a 6-m-class IR/O/UV space telescope, recently dubbed the Habitable Worlds Observatory, is a high priority goal of the Astro2020 Decadal […]