Difference between revisions of "Gliese 581"

From FenWiki
Jump to: navigation, search
m
 
Line 27: Line 27:
 
* '''Gliese 581e'''
 
* '''Gliese 581e'''
 
* '''Gliese 581f'''
 
* '''Gliese 581f'''
 
  
 
{{interstellar}}
 
{{interstellar}}
 
[[Category:Pages in need of cleanup]]
 
[[Category:Pages in need of cleanup]]

Latest revision as of 01:08, 19 May 2016

Fenwiki stub.png There's something missing here…

This page is a Wikipedia or SolStation data dump with little or no relation – or, worse yet, with contradictions – to the situation in Fenspace.

You can help FenWiki by expanding this page.

Places in Fenspace
Gliese 581
Gliese 581.jpg
Stellar characteristics
ConstellationLibra
Right ascension (Epoch J2000)15h 19m 26.8250s
Declination (Epoch J2000)−07° 43′ 20.209″
Spectral typeM3V
Distance from Sol20.3 ± 0.3 ly
Other designationsHO Librae, HO Lib, BD−07°4003, GJ 581, HIP 74995, LFT 1195, LHS 394, LPM 564, LTT 6112, NLTT 39886, TYC 5594-1093-1, Wolf 562.
PlanetsGliese 581 b, Gliese 581 c, Gliese 581 d, Gliese 581 e, Gliese 581 g
This box: view  talk  edit


Gliese 581 (pronounced /ˈɡliːzə/) is a red dwarf star with spectral type M3V, located 20.3 light years away from Earth in the constellation Libra. Its mass is estimated to be approximately a third of that of the Sun, and it is the 87th closest known star system to the Sun. Observations suggest that the star has at least four planets: Gliese 581 b, c, d, e.

The star system gained attention after Gliese 581c, the first low-mass extrasolar planet found to be near its star's habitable zone, was discovered in April 2007. It has since been shown that under known terrestrial planet climate models, Gliese 581c is likely to have a runaway greenhouse effect, and hence is probably not habitable. However, the subsequently discovered outermost planet Gliese 581d is firmly within the habitable zone. In April 2009, the discovery of exoplanet Gliese 581 e, at that time the closest-known in mass to Earth, was announced.

(Data from Wikipedia)

Some Fen are planning to have a powerful radio telescope in operation in orbit around 581e for March 2029 in order to receive and record the message sent from Earth in 2008 by a "Web 2.0 Portal" corporation. Considering the contents of the message, opinions are divided as to whether this recording will be used as a historical record or as blackmail material.

Known Places in Gliese 581

  • Gliese 581b
  • Gliese 581c
  • Gliese 581d
  • Gliese 581e
  • Gliese 581f