HD 128311 b

Planetbox begin
name = HD 128311 b Planetbox star
star = HD 128311
constell = Boötes
RA = RA|14|36|00.5607
DEC = DEC|+09|44|47.466
dist_ly = 54.14
dist_pc = 18.04
class = K0VPlanetbox orbit
semimajor = 1.100 ± 0.065
semimajor_gigameter = 164.6
periastron = 0.820
periastron_gigameter = 122.6
apastron = 1.380
apastron_gigameter = 206.4
eccentricity = 0.25 ± 0.10
period = 458.6 ± 6.8
period_year = 1.256
period_megasecond = 39.62
speed = 26.2
angular_dist = 66.205
long_peri = 111° ± 36°
t_peri = 2,450,211 ± 76
semi-amp = 66.8 ± 8.7Planetbox character
mass = >2.19 ± 0.20
mass_earth = >695.982 ± 63.56
radius = ~1.033
density = ~2660
gravity_earth = ~5.42
gravity = ~53.1
temperature = ~141
insolation =
insolation_earth =
radius_megameter =
mass_wekagram = Planetbox discovery
discovery_date = 2002
discoverers = Butler "et al"
discovery_method = Doppler Spectroscopy
discovery_site = flagicon|USA California, USA
discovery_status = Published Planetbox catalog
names = GJ 3860 b, HIP 71395 b, HN Boötis bPlanetbox reference
star = HD+128311
planet = b

HD 128311 b is an exoplanet located approximately 54 light-years away in the constellation of Boötes. This planet orbits in an eccentric orbit about 1.1 AU from its star (HD 128311). The planet has minimum mass 2.19 Jupiter masses and speculative radius 1.033 Jupiter radii.

References

*cite journal | url=http://www.journals.uchicago.edu/doi/full/10.1086/344570 | author=Butler "et al." | title=Seven New Keck Planets Orbiting G and K Dwarfs | journal=The Astrophysical Journal | year=2003 | volume=582 | issue=1 | pages=455 – 466 | doi=10.1086/344570
*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?papernum=0607493 web Preprint] )

External links

*
*
*