More about Star mass in StellarGuide
More about Star size in StellarGuide
Temperature: 3700 K More about Star temperature in StellarGuide
Apparent magnitude (V): 15.2Absolute magnitude (V): 9|
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HD 39500 | ||||||||
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HD 39500 B | ||||||||
| HD 39500 B b | 0.04 AU | 101.4 M⊕ | 11.2 R⊕ | 3.3 days | |||||
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HD 39500 B can be found in southern celestial hemisphere, however it is too dim to be seen with the naked eye or even a small telescope. 
Yesterday
Yesterday23. 10. 2026Red dwarfs are small, cool stars with surface temperatures of about 2,000–3,800 K, much cooler than the Sun. They usually have 8–50% of the Sun’s mass and shine very faintly, sometimes at just a tiny fraction of the Sun’s brightness. Classified mainly as spectral type M, they are the most common stars in the Milky Way, making up roughly 70–75% of its stellar population. They fuse hydrogen slowly through the proton–proton chain and are fully convective, which allows them to use their fuel very efficiently. As a result, red dwarfs can live for tens of billions to trillions of years—far longer than the Sun. Many exoplanets orbit red dwarfs, including some in close habitable zones, though strong stellar activity can affect planetary environments.
Stellar Brief
About Stellar Catalog
Data in Stellar Catalog come from trusted scientific sources. Primary source is Gaia space telescope mapping the stars in Milky Way. Other sources include research papers, Simbad catalog and Exoplanet.eu database.
Objects listed in the Stellar Catalog often have values that are estimates. These estimates are determined using their known characteristics, such as spectral type, brightness across different wavelengths, distance from a star, and other factors.
Stellar Catalog is continuously updated with new information from research papers. Stellar and planetary data are validated by automatic processes as well as humans.