HD 156846
Encyclopedia
HD 156846 is a G-type main sequence star
of magnitude
6.5, located approximately 160 light-year
s away in the Ophiuchus constellation. The star has an M4 companion and a planet
.
was found by Tamuz using the radial velocity method.
Star
A star is a massive, luminous sphere of plasma held together by gravity. At the end of its lifetime, a star can also contain a proportion of degenerate matter. The nearest star to Earth is the Sun, which is the source of most of the energy on Earth...
of magnitude
Apparent magnitude
The apparent magnitude of a celestial body is a measure of its brightness as seen by an observer on Earth, adjusted to the value it would have in the absence of the atmosphere...
6.5, located approximately 160 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 in the Ophiuchus constellation. The star has an M4 companion and a 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...
.
Planetary system
On 26 October 2007, a planet HD 156846 bHD 156846 b
HD 156846 b is an extrasolar planet located approximately 160 light-years away in the constellation of Ophiuchus, orbiting the star HD 156846. It has one of the most eccentric planetary orbits known. The high eccentricity of this planet's orbit is probably attributable to the presence of a red...
was found by Tamuz using the radial velocity method.