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

         

Anzeige


R Monocerotis

The heavy, young star R Mon sits at the head of the cometary nebula NGC 2261, which is also known as Hubble's Variable Nebula. It is surrounded by a dust disk with the size of our solar system. The big star has a smaller, invisible companion with probably the same age.

Constellation: Monoceros
Age: 300 000 years
Distance: 2500 light-years
Visual magnitude: 10.4 (10 - 12)
Space between R Monocerotis A and B: 500 AU

R Monocerotis A

Spectral class: A3e - Fpe
Luminosity: 43 000 * Sun
Mass: 10 * Sun
Diameter: 2 * Sun
 

R Monocerotis B


Luminosity: 50 * Sun
Mass: 1.5 * Sun

Back: List of big and giant stars part 2

02/20/2007

    R Monocerotis
Photo: NASA and The Hubble Heritage Team (AURA/STScI)

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


Anzeige

Astronomy: Stars & Planets | © Jumk.de Webprojects

Images of Chemical Elements