Gliese 832 b

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Gliese 832 b
Extrasolar planet List of extrasolar planets
Parent star
Star Gliese 832
Constellation Grus
Right ascension (α) 21h 33m 33.9752s
Declination (δ) –49° 00′ 32.422″
Distance 16.10 ly
(4.938 pc)
Spectral type M1.5V
Orbital elements
Semimajor axis (a) 3.4 ± 0.4 AU
(510 Gm)
    690 mas
Periastron (q) 3.0 AU
(450 Gm)
Apastron (Q) 3.8 AU
(570 Gm)
Eccentricity (e) 0.12 ± 0.11
Orbital period (P) 3416 ± 131 d
(9.352 y)
Orbital speed (υ) 10.9 km/s
Time of periastron (T0) 1211 ± 353 JD
Physical characteristics
Minimum mass (m sin i) 0.64 ± 0.06 MJ
Discovery information
Discovery date September 1, 2008
Discoverer(s) Bailey et al.
Discovery method Doppler spectroscopy
Discovery site Anglo-Australian Observatory
Discovery status Published
Database references
Extrasolar Planets
Encyclopaedia
data
SIMBAD data

Gliese 832 b (Gl 832 b or GJ 832 b) is an extrasolar planet located approximately 16 light-years from our sun in the constellation of Grus, orbiting the red dwarf star Gliese 832.[1]

Orbit[edit]

The planet takes 3416 days to revolve at an orbital distance of 3.4 AU; this is the longest-period Jupiter-like planet orbiting a red dwarf.[2] The brightness of the faint parent star at that distance corresponds to the brightness of the Sun from 80AU (or a 100 times brighter than a full Moon as seen from Earth).

Discovery[edit]

The planet was discovered in the Anglo-Australian Observatory on September 1, 2008.

References[edit]

  1. ^ Wall, Mike (June 25, 2014). "Nearby Alien Planet May Be Capable of Supporting Life". Space.com. Retrieved July 1, 2014. 
  2. ^ Bailey, Jeremy et al. (2008). "A Jupiter-like Planet Orbiting the Nearby M Dwarf GJ832". The Astrophysical Journal 690: 743–747. arXiv:0809.0172. Bibcode:2009ApJ...690..743B. doi:10.1088/0004-637X/690/1/743. 

External links[edit]

Coordinates: Sky map 21h 33m 33.9752s, −49° 00′ 32.422″