List Of Earth Like Planet - Habitable ExoPlanet

List Of Earth Like Planet - Exoplanet
Kepler-186f is seen in a NASA artist's concept.
© JPL-Caltech / NASA / Reuters
In astronomy and astrobiology, the circumstellar habitable zone (CHZ or sometimes "ecosphere", "liquid-water belt", "HZ", "life zone" or "Goldilocks zone") is the region around a star where a planet with sufficient atmospheric pressure can maintain liquid water on its surface.

A potentially habitable planet implies a terrestrial planet within the circumstellar habitable zone and with conditions roughly comparable to those of Earth (i.e. an Earth analog) and thus potentially favourable to Earth-like life. However, the question of what makes a planet habitable is much more complex than having a planet located at the right distance from its host star so that water can be liquid on its surface: various geophysical and geodynamical aspects, the radiation, and the host star’s plasma environment can influence the evolution of planets and life, if it originated.

In November 2013, astronomers reported, based on Kepler space mission data, that there could be as many as 40 billion Earth-sized planets orbiting in the habitable zones of Sun-like stars and red dwarfs in the Milky Way, 11 billion of which may be orbiting Sun-like stars.



A 2015 review concluded that the exoplanets Kepler-62f, Kepler-186f and Kepler-442b were likely the best candidates for being potentially habitable. These are at a distance of 1,200, 490 and 1,120 light-years away, respectively. Of these, Kepler-186f is similar in size to Earth with a 1.2-Earth-radius measure and it is located towards the outer edge of the habitable zone around its red dwarf.

This is a list of potentially habitable exoplanets and possible exoplanets. The list is based on estimates of habitability by the Habitable Exoplanets Catalog (HEC), and data from the NASA Exoplanet Archive. The HEC is maintained by the Planetary Habitability Laboratory at the University of Puerto Rico at Arecibo.

This is a list of the exoplanets that are more likely to have a rocky composition (which according to current research requires a radius of less than 1.6 R⊕ and a mass less than 6 M⊕) and maintain surface liquid water (i.e. between 0.5 and 1.5 R⊕ and between 0.1 and 5 M⊕, and orbiting within the conservative habitable zone). Note that this does not ensure habitability. Earth is included for comparison.

Planet: Earth
Star: Sun
Distance (Light Year): -

ExoPlanet: Proxima Centauri b
Star: Proxima Centauri
Distance (Light Year): 4.22

ExoPlanet: Luyten b
Star: Luyten's Star
Distance (Light Year): 12.36

ExoPlanet: Wolf 1061c
Star: Wolf 1061
Distance (Light Year): 13.8

ExoPlanet: Gliese 667 Cc
Star: Gliese 667 C
Distance (Light Year): 23.62

ExoPlanet: TRAPPIST-1d
Star: TRAPPIST-1
Distance (Light Year): 39

ExoPlanet: TRAPPIST-1e
Star: TRAPPIST-1
Distance (Light Year): 39

ExoPlanet: TRAPPIST-1f
Star: TRAPPIST-1
Distance (Light Year): 39

ExoPlanet: TRAPPIST-1g
Star: TRAPPIST-1
Distance (Light Year): 39

ExoPlanet: LHS1140 b
Star: LHS 1140
Distance (Light Year): 40

ExoPlanet: Kepler-186f
Star: Kepler-186
Distance (Light Year): 526

ExoPlanet: Kepler-1229b
Star: Kepler-1229
Distance (Light Year): 769

ExoPlanet: Kepler-62f
Star: Kepler-62
Distance (Light Year): 1200

ExoPlanet: Kepler-442b
Star: Kepler-442
Distance (Light Year): 1291.6

ExoPlanet: Kepler-452b
Star: Kepler-452
Distance (Light Year): 1402

ExoPlanet: Kepler-1638b
Star: Kepler-1638b
Distance (Light Year): 2491.83


“How vast those Orbs must be, and how inconsiderable this Earth, the Theatre upon which all our mighty Designs, all our Navigations, and all our Wars are transacted, is when compared to them. A very fit consideration, and matter of Reflection, for those Kings and Princes who sacrifice the Lives of so many People, only to flatter their Ambition in being Masters of some pitiful corner of this small Spot.” 
― Christiaan Huygens

No comments:

Post a Comment

Share your veiw...!