Post by ET_Explorer on Nov 3, 2015 16:22:18 GMT
HD 209458, It is very similar to our Sun, and it is classified as a yellow dwarf (spectral class G0 V). Because it is located at a distance of about 150 light years, it is not visible to the unaided eye. With good binoculars or small telescope it should be easily detectable.
>> Source << >> SIMBAD <<
Planetary system
HD 209458 b (sometimes though unofficially named Osiris) is an extrasolar planet that orbits the solar analog HD 209458 in the constellation Pegasus, some 150 light-years from the Solar System. The radius of the planet's orbit is 7 million kilometres, about 0.047 astronomical units, or one eighth the radius of Mercury's orbit. This small radius results in a year that is 3.5 Earth days long and an estimated surface temperature of about 1,000 °C (about 1,800 °F). Its mass is 220 times that of Earth (0.69 Jupiter masses) and its volume is some 2.5 times greater than that of Jupiter. The high mass and great volume of HD 209458 b indicate that it is a gas giant.
>> Source <<
V376 Peg HD 209458 8th magnitude star In Pe....kmz (1.38 KB)
>> Source << >> SIMBAD <<
Planetary system
HD 209458 b (sometimes though unofficially named Osiris) is an extrasolar planet that orbits the solar analog HD 209458 in the constellation Pegasus, some 150 light-years from the Solar System. The radius of the planet's orbit is 7 million kilometres, about 0.047 astronomical units, or one eighth the radius of Mercury's orbit. This small radius results in a year that is 3.5 Earth days long and an estimated surface temperature of about 1,000 °C (about 1,800 °F). Its mass is 220 times that of Earth (0.69 Jupiter masses) and its volume is some 2.5 times greater than that of Jupiter. The high mass and great volume of HD 209458 b indicate that it is a gas giant.
>> Source <<
V376 Peg HD 209458 8th magnitude star In Pe....kmz (1.38 KB)
