HD 290327, a yellow subgiant star in Orion

HD 290327 (HIP 25191)

HD 290327 is a yellow subgiant star in the constellation Orion. At 183 light years away, it shines at an apparent visual magnitude of 8.99. It is moving through the Galaxy at a speed of 40.3 km/s relative to the Sun. Its projected Galactic orbit carries it between 16,800 and 24,300 light years from the center of the Galaxy. It came closest to the Sun 1000,000 years ago when it had brightened to magnitude 8.15 from a distance of 124 light years. HD 290327 has one confirmed planet known to date (July 2013).

Sky position: RA 5h 23.4m, Dec -2° 16.8'

Common designations: HIP 25191, HD 290327

Galactic Orbit of HD 290327
(compared to the Sun)

E

ccentricity: 18.4% vs. 16.0%

Angle φ : 177.6°vs. 26.0°

Semi-major axis : 6,294 pc vs. 8,686 pc

Semi-minor axis: 6,187 pc vs. 8,574 pc

Focus-to-center

: 1,155 pcvs. 1,388 pc

Semilatus rectum : 6,082 pc vs. 8,464 pc

Perigalacticon: 5,139 pc vs. 7,297 pc

Apogalacticon

: 7,449 pcvs. 10,074 pc
  Some Tabulated XHIP Data for HD 290327
(see also: SIMBAD)

Astrometry
2007A&A...474..653V

Position	Proper Motion
Right Ascension:	80.83976999° ±1.19 mas	34.74 ±0.90 mas/yr.
Declination:	-2.27738392° ±0.92 mas	-96.74 ±0.74 mas/yr.
Galactic Longitude:	204.61234301°	101.67 mas/yr.
Galactic Latitude:	-20.58124973°	-15.09 mas/yr.

Parallax: 17.65 ± 1.57 mas

Spectrography

Spectral Type: G5 IV 1973AbaOB..44..175K.

Radial Velocity: 29.54 ±0.01 km/s [A rating] 2010A&A...523A..15N.

Iron Abundance [Fe/H]: n/a

Photometry
 

band	magnitude	Abs. Mag.
U
B	9.75	6.01
V	8.99	5.24
R
I	8.23	4.49
J	7.68	3.94
H	7.40	3.66
K	7.27	3.53

B-V: +0.76 V-I: +0.76

Derivations

Heliocentric distance: 56.12 pc (8.9% margin of error)

Galactocentric distance: 7,448 pc

Transverse velocity: 27.3 km/s

3D heliocentric position and motion:

toward:	Galactic center	Galactic rotation	North Galactic Pole
Position ( X, Y, Z)	-47.8 pc	-21.9 pc	-19.7 pc
Velocity (U, V, W)	-12.6 km/s	-35.5 km/s	-14.1 km/s