HD 128311 c

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 = 1.76 ± 0.11
semimajor_gigameter = 263
periastron = 1.46
periastron_gigameter = 218
apastron = 2.06
apastron_gigameter = 308
eccentricity = 0.170 ± 0.090
period = 928 ± 18
period_year = 2.54
period_megasecond = 80.2
speed = 20.7
ang_dist = 106.024
long_peri = 200° ± 150
t_peri = 2,450,010 ± 400
semi-amp = 76.2 ± 4.6Planetbox character
mass = >3.22 ± 0.49
mass_earth = > 1023.316 ± 155.722
radius = ~1.038
density = ~3820
gravity_earth = ~7.89
gravity = ~77.4
temperature = ~179 Planetbox discovery
discovery_date = June 24, 2005
discoverers = Vogt "et al"
discovery_method = Doppler spectroscopy
discovery_site = flagicon|USA California, USA
discovery_status = Published Planetbox catalog
names = GJ 3860 c, HIP 71395 c, HN Boötis cPlanetbox reference
star = HD+128311
planet = c

HD 128311 c is an exoplanet located approximately 54 light-years away in the constellation of Boötes. This planet orbits in an eccentric orbit at 1.76 AU from its star (HD 128311). The planet has minimum mass 3.22 Jupiter masses and speculative radius 1.038 Jupiter radii.

References

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*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

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