HD 175541

Starbox short
name = HD 175541
epoch = J2000.0
constell = Serpens
ra = 18^h 55^m 40.9^s
dec = +04º 15' 55.2"
spectral = G8IV
appmag_v = 8.03
dist_ly = 416
dist_pc = 127.55
names = BD +04º 3911, GC 25968, GCRV 11376, GJ 736, HIP 92895, SAO 124054.

HD 175541 is an intermediate-mass subgiant star in the constellation Serpens. That means when this star was a main-sequence, it was an A-type star.

It is an 8^th magnitude star about 416 light years from Earth. Despite of its distance of over 100 ly, there is the Gliese number 736.

In April 2007, the planet was found orbiting around one of the three preferred intermediate-mass subgiants that has changes in radial velocity trends.

HD 175541 b

Planetbox begin
name = HD 175541 b Planetbox orbit
semimajor = 1.03
eccentricity = 0.33 ± 0.2
period = 297.3 ± 6
ang_dist = 8.047
long_peri = 183 ± 30
t_peri = 2,450,213 ± 20
semi-amp = 14 ± 2Planetbox character
mass = >0.61 Planetbox discovery
discovery_date = April 2007
discoverers = Johnson et al.
discovery_method = Doppler spectroscopy
discovery_location = USA
discovery_status = Published HD 175541 b is a jovian planet. Despite the distance of planet to star slightly more than Earth to the Sun, the period is less than 300 days that orbits in an eccentric orbit.

The discovery of this planet and two others: HD 192699 b and HD 210702 b around intermediate-mass stars provide clues about the formation and history of migration of planets around the A-type stars.

References

*

ee also

* HD 192699
* HD 210702

External links

* [http://exoplanet.eu/star.php?st=HD+175541 The Extrasolar Planets Encyclopedia: HD 175541]
* [http://simbad.u-strasbg.fr/simbad/sim-id?protocol=html&Ident=HD+175541&NbIdent=1&Radius=10&Radius.unit=arcmin&submit=submit+id SIMBAD: HD 175541]