HAT-P-5b

HAT-P-5b

Extrasolar planet		List of extrasolar planets
Size comparison of HAT-P-5b with Jupiter.
Parent star
Star		HAT-P-5
Constellation		Lyra
Right ascension	(α)	18h 17m 37.299s
Declination	(δ)	+36° 37′ 16.88″
Distance		1100 ± 100 ly (340 ± 30 pc)
Spectral type		G
Orbital elements
Semimajor axis	(a)	0.04075 ± 0.00076 AU
Periastron	(q)	0.04075 AU
Apastron	(Q)	0.04075 AU
Eccentricity	(e)	0
Orbital period	(P)	2.788491 ± 2.5e-5 d (0.007634339 y)
Orbital speed	(υ)	159.5 km/s
Inclination	(i)	86.75 ± 0.44°
Time of transit	(Tt)	2,454,241.77663 ± 0.00022 JD
Physical characteristics
Mass	(m)	1.06 ± 0.11 MJ
Radius	(r)	1.26 ± 0.05 RJ
Density	(ρ)	660 ± 110 kg m-3
Discovery information
Discovery date		October 9, 2007
Discoverer(s)		Bakos et al.
Detection method		transit
Discovery status		Published
Database references
Extrasolar Planets Encyclopaedia		data
SIMBAD		data

HAT-P-5b is a transiting extrasolar planet located approximately 1100 light-years away in the constellation of Lyra, orbiting the star HAT-P-5. It is a hot Jupiter with a mass 6% greater than Jupiter and a radius 26% greater than Jupiter, corresponding to a density of 0.66 g/cm₃, which is less than water. This planet was found by Bakos et al. on October 9, 2007.

See also

• HAT-P-4b
• HAT-P-6b

References

• Bakos et al.; Shporer, A.; Pál, A.; Torres, G.; Kovács, Géza; Latham, D. W.; Mazeh, T.; Ofir, A. et al. (2007). "HAT-P-5b: A Jupiter-like Hot Jupiter Transiting a Bright Star". The Astrophysical Journal Letters 671 (2): L173–L176. Bibcode 2007ApJ...671L.173B. doi:10.1086/525022. http://www.iop.org/EJ/article/1538-4357/671/2/L173/22285.html. 

External links

Media related to HAT-P-5 b at Wikimedia Commons

• "HAT-P-5 b". Exoplanets. http://media4.obspm.fr/exoplanets/base/planete.php?etoile=HAT-P-5&planete=b.