70 Virginis b
Videos
70 Virginis b is an extrasolar planet approximately 60 light-years away in the constellation of Virgo. Announced in 1996 by Geoffrey Marcy and R. Paul Butler, 70 Virginis was one of the first stars co
The exoplanet 70 Virginis b (min mass ~7.5 MJ) as rendered by Celestia
Radial velocity changes over time of 70 Virginis caused by the orbit of 70 Virginis b.
Habitable zone
Videos
In astronomy and astrobiology, the habitable zone, also known as the circumstellar habitable zone, or as the Goldilocks zone, is the range of orbits around a star within which a planetary surface coul
70 Virginis b
…Virginis was one of the first stars confirmed to have planets orbiting it. When first announced, 70 Virginis b was considered to be within its star's habitable zone (preferably in the "Goldilocks zone"), but it was later confirmed that the planet has an eccentric orbit, closer to its parent. 70 Virginis b is a gas…
Edward Walter Maunder, British astronomer, who introduced the concept of habitable zones
Earth's hydrosphere. Water covers 71% of Earth's surface, with the global ocean accounting for 97.3% of the water distribution on Earth.
Natural shielding against space weather, such as the magnetosphere depicted in this artistic rendition, may be required for planets to sustain surface water for prolonged periods.
The habitable zone of Gliese 581 compared with the Solar System's habitable zone