HD 224143 (HIP 117958)

HD 224143 is a yellow main-sequence star in the constellation Aquarius. At 137 light years away, it shines at an apparent visual magnitude of 7.88. The star's age is estimated to be 6.3 billion years but is certainly no less than 1.7 billion years and no greater than 10.4 billion years. The iron abundance of HD 224143 is -0.12 (75.9% of the Sun). It is moving through the Galaxy at a speed of 15.8 km/s relative to the Sun. Its projected Galactic orbit carries it between 23,900 and 37,100 light years from the center of the Galaxy. It came closest to the Sun 2.5 million years ago when it had brightened to magnitude 4.98 from a distance of 36 light years.

Sky position: RA 23h 55.6m, Dec -20 57'

Common designations: HIP 117958, HD 224143

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2014 Moon Calendar
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Galactic Orbit of HD 224143

(compared to the Sun)

Eccentricity: 21.7% vs. 16.0%

Angle φ : 17.9 vs. 26.0

Semi-major axis : 9,356 pc vs. 8,686 pc

Semi-minor axis: 9,134 pc vs. 8,574 pc

Focus-to-center: 2,025 pc vs. 1,388 pc

Semilatus rectum : 8,918 pc vs. 8,464 pc

Perigalacticon: 7,331 pc vs. 7,297 pc

Apogalacticon: 11,381 pc vs. 10,074 pc
 


Some Tabulated XHIP Data for HD 224143
(see also: SIMBAD)

Astrometry
2007A&A...474..653V
  Position Proper Motion
Right Ascension: 358.89568925 0.65 mas 5.50 1.30 mas/yr.
Declination: -20.95328324 0.43 mas 20.00 1.30 mas/yr.
     
Galactic Longitude: 55.78634510 20.19 mas/yr.
Galactic Latitude: -75.84476129 4.74 mas/yr.

Parallax: 23.69 0.82 mas


Spectrography

Spectral Type: G1V 2006AJ....132..161G.

Radial Velocity: 15.20 1.10 km/s [A rating] 2006AstL...32..759G.

Iron Abundance [Fe/H]: -0.12 0.08 dex  2011A&A...530A.138C.
 



Photometry
 
band magnitude Abs. Mag.
U
B 8.52 5.40
V 7.88 4.76
R
I 7.27 4.15
J 6.73 3.60
H 6.47 3.34
K 6.37 3.24

  B-V: +0.64       V-I: +0.61


Derivations

Heliocentric distance: 42.15 pc (3.5% margin of error)

Galactocentric distance: 7,394 pc

Transverse velocity: 4.1 km/s

3D heliocentric position and motion:

toward:   

Galactic center Galactic rotation North Galactic Pole
Position ( X, Y, Z) 5.8 pc 8.5 pc -40.9 pc
Velocity (U, V, W) -0.7 km/s 6.1 km/s -14.5 km/s

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