HD 20003 [SEP] constellation
HD 20003
HD 20003 is a star in the constellation Hydrus. Its apparent magnitude is 8.37. It is a yellow main sequence star of spectral type G8V a little cooler and smaller than our sun around 143 light years away. It has two planets that are around 12 and 13.5 times as massive as the earth that have periods of just under 12 and 34 days respectively. These were detected by the HARPS survey in 2011.
-years distant with a spectral type G8V and magnitude of 6.7. It has a Jovian planet companion (GJ 3021 b). Orbiting about 0.5 AU from its sun, it has a minimum mass 3.37 times that of Jupiter and a period of around 133 days. The system is a complex one as the faint star GJ 3021B orbits at a distance of 68 AU; it is a red dwarf of spectral type M4V.
HD 20003 is a star of magnitude 8.37. It is a yellow main sequence star of spectral