The Stars || News || About Stars | Nearest Stars | Big Stars | Special Stars | Exoplanets | Prototype Stars || Constellations || Galaxies || Planets | Moons | Solar System || Convert Values || Stellar Records || Imprint & Privacy



Rho Leonis

This star, which is close to the ecliptic (like the nearby Regulus), is a very early blue supergiant, which left the main sequence not long ago. The value for its distance is quite inexact - and in consequence these for mass and luminosity as well. The A-star has a fairly big partner B, probably a blue main sequence star, about which not much is known.

Constellation: Leo
Age: 7 million years
Distance: circa 4000 light-years
Visual magnitude: 3.842
Radial velocity: 42.0 km/sec
Orbit period of Rho Leonis A and B: about 1 year

Rho Leonis A

Spectral class: B1
Visual magnitude: 4.4
Luminosity: 200 000 * Sun
Mass: 23 * Sun

Rho Leonis B

Visual magnitude: 4.8

Back: List of big and giant stars part 2


    Rho Leonis
Photo: ESO Online Digitized Sky Survey

    Astronomical articles released under Creative Commons: Imprint & Privacy
This site in German: Sterne und Planeten

Astronomy: Stars & Planets | © Webprojects

Images of Chemical Elements