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 away in the constellation of Grus, orbiting the star Gliese 832. This is the longest-period Jupiter-like planet orbiting around a red dwarf star. This planet takes 3416 days to revolve at an orbital distance of 3.4 AU. Despite been closer to its star than Jupiter is in our Solar System, it receives just 100 times more sunlight than of a full Moon as seen from Earth comparable to the brightness of the Sun at 80AU. This is because the parent star is a faint red dwarf star. This planet was discovered in Anglo-Australian Observatory on September 1, 2008.

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