A NASA telescope taking a nose count of planets in one small neighborhood of the Milky Way registered more than 1,200 candidates, including 54 residing in life - friendly
orbits around their parent stars.
The new exoplanet, dubbed «HIP 116454b,» is 2.5 times the diameter of Earth and follows a close, nine - day
orbit around its parent star, whose small size and cool temperature make the planet too hot to support life.
Not exact matches
Because this scenario depends on the presence of nearby
stars, we expect DCBHs to typically form in satellite galaxies that
orbit around larger
parent galaxies where Population III
stars have already formed.
These
orbits put the planets at safe distances from their chaotic
parent stars, which are pulling each other
around in a constant cosmic waltz.
The newly announced one, MOA -2009-BLG-266Lb, is estimated to be just over 10 times the mass of Earth and
orbits at a distance of 3.2 AU
around its
parent star with roughly half the mass of the sun.
The planet is comparable to Saturn in mass and size, and is on a nearly circular 229 - day
orbit around its two
parent stars.
The TRAPPIST - 1 exoplanets are packed in a tight
orbit around their dim
parent star and are so close to one another that all of their
orbits would fit inside Mercury's
orbit of the sun.
The newfound world
orbits its
parent star at a distance a bit farther than that of Saturn
around our Sun.