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Planet found orbiting Barnard's star

barnards star planets exoplanets interstellar space holy shit

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#1
Jakob

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Astronomers found a 'cold super-Earth' less than 6 light-years away — and it may be the first rocky planet we'll photograph beyond the solar system

 

 

  • Astronomers think they've found a "cold super-Earth" exoplanet orbiting Barnard's star.
  • Barnard's star, less than six light-years from us, is the closest single-star system to our sun.
  • The new world, called Barnard's star b, or GJ 699 b, is at least 3.2 times as massive as Earth.
  • It orbits in its parent star's "snow line," a region at the edge of a star'shabitable zone where scientists suspect most rocky planets form.
  • This roughly Earth-size exoplanet may be the first to be photographed by a new generation of powerful telescopes.

 

 


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#2
Sciencerocks

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1% chance of detection with Gaia. 10% chance if they put some HST time to it. If HST does not detect it, then an upper mass of 8 Earth-masses can be obtained. WFIRST may have a ~99% chance of detecting it.

Prospects for detecting the astrometric signature of Barnard's Star b
https://arxiv.org/abs/1811.05920


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#3
wjfox

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186130_web.jpg


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#4
eacao

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Spoiler

 

like a big, bald Mars.


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Only take advice from people who have what you want.
You don't decide your future. You decide your habits, and your habits decide your future.
Nearly all men can stand adversity, but if you want to test a man's character, give him power. - Abraham Lincoln.

#5
Outlook

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So when are the generation ships being built?
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Outlook's secret song of the ~week: https://youtu.be/xWIhjDgZ2hg





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