- HD 73256
Starbox short
name = HD 73256
epoch =J2000.0
constell =Pyxis
ra = RA|08|36|23.02
dec = DEC|−30|02|15.46
spectral = G9V
appmag_v = 8.08
absmag_v = 5.27
dist_ly = 119
dist_pc = 36.5
names = CS Pyxis, HIP 42214, SAO 176159HD 73256 is a
star in theconstellation Pyxis . Thespectral type is G9V with a quarter moremass than theSun .HD 73256 b
Planetbox begin
name = HD 73256 b Planetbox orbit
semimajor = 0.037
eccentricity = 0.029±0.02
period = 2.54858±0.00016
ang_dist = 1.01
long_peri = 337±46
t_peri = 2452500.18±0.28
semi-amp = 269±8Planetbox character
mass = >1.87 Planetbox discovery
discovery_date = 2003
discoverers = Udry et al.
discovery_method = Doppler spectroscopy
discovery_status=PublishedHD 73256 b is an 1.87 MJ
hot Jupiter orbiting at 0.037 AU taking 2.55 days to orbit around HD 73256.Assuming the planet is perfectly grey with no greenhouse or tidal effects, and a Bond albedo of 0.1, the temperature would be about 1300K. This is close to
51 Pegasi b ; between the predicted temperatures ofHD 189733 b andHD 209458 b (1180-1392K), before they were measured. It is a candidate for "near-infrared characterisation.... with the VLTI Spectro-Imager". [cite arXiv | title=Prospects for near-infrared characterisation of hot Jupiters with the VLTI Spectro-Imager (VSI) |author=Renard, S. "et al."|year=2008| eprint=0807.3014v1 |class=astro-ph]References
* cite journal |url=http://www.aanda.org/index.php?option=article&access=standard&Itemid=129&url=/articles/aa/abs/2003/32/aa3857/aa3857.html |author=S. Udry, M. Mayor, J. V. Clausen, L. M. Freyhammer, B. E. Helt, C. Lovis, D. Naef, E. H. Olsen, F. Pepe, D. Queloz and N. C. Santos |title=The CORALIE survey for southern extra-solar planets X. A Hot Jupiter orbiting HD 73256
journal=A&A |year=2003 |volume= |pages= |accessdate=2007-11-22External links
* [http://exoplanet.eu/star.php?st=HD+73256 EPE: HD 73256]
* [http://simbad.u-strasbg.fr/simbad/sim-id?protocol=html&Ident=HD+73256&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id SIMBAD: HD 73256]
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