Gliese 849 b

Planetbox begin
name = Gliese 849 bPlanetbox star
star = Gliese 849
constell = Aquarius
RA = RA|22|9|40.3460
DEC = DEC|–4|38|26.624
dist_ly = 28.618 ± 0.7

dist_pc = 8.774 ± 0.2
class = M3.5V Planetbox orbit
semimajor = 2.35
semimajor_gigameter = 351
periastron = 2.20
periastron_gigameter = 329
apastron = 2.50
apastron_gigameter = 373
eccentricity = 0.06 ± 0.09
period = 1890 ± 130
period_year = 5.17
period_megasecond = 163
ang_dist = 267.039
long_peri = 351 ± 60
t_peri = 2411462 ± 550
semi-amp = 22 ± 4Planetbox character
mass = >0.82
radius = ~0.974
density = ~1177
gravity = ~22.4
gravity_earth = 2.28
temperature = ~72
mass_earth =260.596
insolation =
insolation_earth =
radius_megameter =
mass_wekagram =
radius_earth =10,9 Planetbox discovery
discovery_date = August 2006
discoverers = Buccino et al.
Stellar Planet
Survey
flag|USA
discovery_site = [http://steps.jpl.nasa.gov/ steps.jpl.nasa.gov]
discovery_method = radial velocity
discovery_status=Published Planetbox catalog
names = HIP 109388 b, GJ 849bPlanetbox reference
star=GJ+849
planet=b

Gliese 849 b is an extrasolar planet approximately 29 light years away in the constellation of Aquarius. This is the first long-period Jupiter-like planet discovered around the red dwarf star, announced in August 2006 by Buccino that used the radial velocity technique. The previously longest-period Jupiter-like planet around the red dwarf star was Gliese 876 b. However, there are two disproven longer period Jupiter-like planets around Lalande 21185. There are indication of a possible second companion. The planet's mass is less than that of Jupiter, though only the minimum mass is known. The distance of the planet is 2.35 AU and it takes 1890 days to revolve in a circular orbit.

References

* [http://arxiv.org/abs/astro-ph/0610179 web preprint]

External links

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