HD 149382
Encyclopedia
HD 149382 is a B-type subdwarf star
approximately 242 light-year
s away from Sun
in the constellation
of Ophiuchus. In 2009, a substellar companion (even a superjovian planet
) was announced orbiting the star. This star has nearly half the mass of the Sun, and is 241 light years away from earth.
Subdwarf star
A subdwarf star, sometimes denoted by "sd", is luminosity class VI under the Yerkes spectral classification system. They are defined as stars with luminosity 1.5 to 2 magnitudes lower than that of main-sequence stars of the same spectral type...
approximately 242 light-year
Light-year
A light-year, also light year or lightyear is a unit of length, equal to just under 10 trillion kilometres...
s away from Sun
Sun
The Sun is the star at the center of the Solar System. It is almost perfectly spherical and consists of hot plasma interwoven with magnetic fields...
in the constellation
Constellation
In modern astronomy, a constellation is an internationally defined area of the celestial sphere. These areas are grouped around asterisms, patterns formed by prominent stars within apparent proximity to one another on Earth's night sky....
of Ophiuchus. In 2009, a substellar companion (even a superjovian planet
Extrasolar planet
An extrasolar planet, or exoplanet, is a planet outside the Solar System. A total of such planets have been identified as of . It is now known that a substantial fraction of stars have planets, including perhaps half of all Sun-like stars...
) was announced orbiting the star. This star has nearly half the mass of the Sun, and is 241 light years away from earth.
External links
- http://exoplanet.eu/planet.php?p1=HD%20149382&p2=b
- http://simbad.u-strasbg.fr/simbad/sim-id?Ident=HD%20149382b