HD 89307 b

Planetbox begin
name = HD 89307 b Planetbox star
star = HD 89307
constell = Leo
RA = RA|10|18|21.2877
DEC = DEC|+12|37|15.990
dist_ly = 108
dist_pc = 33
class = G0VPlanetbox orbit
semimajor = 3.28
semimajor_gigameter = 491
periastron = 2.54
periastron_gigameter = 380
apastron = 4.02
apastron_gigameter = 601
eccentricity = 0.23±0.18
period = 2159±70
period_year = 5.911
period_megasecond = 186.5
speed = 16.6
ang_dist = 99.4
long_peri = 10.5
t_peri = 2,452,370±250
semi-amp = 31.0±4.9Planetbox character
mass = >1.92
radius = ~1.097
density = ~1950
gravity_earth = ~4.21
gravity = ~41.3
temperature = ~135 Planetbox discovery
discovery_date = December 26, 2004
discovery_site = flag|United States
discoverers = Marcy "et al"?
discovery_method = radial velocity
discovery_status=Published Planetbox catalog
names = HIP 50473 b

HD 89307 b is an extrasolar planet orbiting the star HD 89307 located approximately 108 light-years away in the constellation of Leo. The planet takes 187 megaseconds to orbit. The planet’s minimum mass is 1.92 M_J since the inclination is unknown. As it is typical for most of the long-period planets, the eccentricity is greater than any planets in our solar system, orbiting at the average distance of 491 gigameters. The speed of the wobble caused by the planet’s gravity is 31 meters per second. The average orbital velocity is 16.6 m/s.

References

*cite journal | url=http://www.journals.uchicago.edu/doi/abs/10.1086/504701 | author=Butler "et al." | title=Catalog of Nearby Exoplanets | journal=The Astrophysical Journal | volume=646 | issue=1 | pages=505 – 522 | year=2006 | doi=10.1086/504701 ( [http://xxx.lanl.gov/abs/astro-ph/0607493 web Preprint] )

External links

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