chi Carinae, a blue subgiant star in Carina
chi Carinae is a blue subgiant star in the constellation Carina. At 452 light years away, it is the 274th brightest star in the Earth's sky, where it shines at an apparent visual magnitude of 3.46.
chi Carinae (HIP 38827)
chi Carinae is a blue subgiant star in the constellation Carina. At 452 light years away, it is the 274th brightest star in the Earth's sky, where it shines at an apparent visual magnitude of 3.46. It is moving through the Galaxy at a speed of 30.1 km/s relative to the Sun. Its projected Galactic orbit carries it between 23,500 and 24,500 light years from the center of the Galaxy. It came closest to the Sun 2.9 million years ago when it had brightened to magnitude 2.88 from a distance of 346 light years.
Sky position: RA 7h 56.8m, Dec -52° 58.8'
Common designations: Chi Carinae, HIP 38827, HD 65575
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Brightest stars in Carina:
(list all)
| Rank | Mag. | Star |
| 2 | 1.67 | Miaplacidus |
| 3 | 1.86 | Avior |
| 4 | 2.21 | Tureis |
| 5 | 2.74 | Theta Carinae |
| 6 | 2.92 | Upsilon Carinae |
| 7 | 3.29 | Omega Carinae |
| 8 | 3.30 | p Carinae |
| 9 | 3.39 | q Carinae |
| 10 | 3.43 | a Carinae |
11
| 3.46
) chi Carinae
| Rank | Mag. | Star |
| 12 | 3.69 | l Carinae |
| 13 | 3.78 | u Carinae |
| 14 | 3.81 | s Carinae |
| 15 | 3.84 | c Carinae |
| 16 | 3.93 | x Carinae |
| 17 | 3.96 | i Carinae |
| 18 | 3.99 | I Carinae |
Galactic Orbit of chi Carinae
(compared to the Sun)
E
ccentricity: 2.1% vs. 16.0%Angle φ : -109.7°vs. 26.0°
Semi-major axis : 7,360 pc vs. 8,686 pc
Semi-minor axis: 7,359 pc vs. 8,574 pc
Focus-to-center
: 152 pcvs. 1,388 pcSemilatus rectum : 7,357 pc vs. 8,464 pc
Perigalacticon: 7,208 pc vs. 7,297 pc
Apogalacticon
: 7,513 pcvs. 10,074 pcSome Tabulated XHIP Data for chi Carinae
(see also: SIMBAD)
Astrometry
2007A&A...474..653V
| Position | Proper Motion | |
| Right Ascension: | 119.19475736° ±0.41 mas | -28.65 ±0.41 mas/yr. |
| Declination: | -52.98240068° ±0.45 mas | 20.20 ±0.40 mas/yr. |
| Galactic Longitude: | 266.67722612° | -31.57 mas/yr. |
| Galactic Latitude: | -12.32022383° | -15.24 mas/yr. |
Parallax: 7.17 ± 0.47 mas
Spectrography
Spectral Type: B3IV 1978MSS...C02....0H.
Radial Velocity: 19.40 ±2.60 km/s [A rating] 2006AstL...32..759G.
Iron Abundance [Fe/H]:
n/a
Photometry
band
magnitude
Abs. Mag.
U
2.64
-3.07
B
3.28
-2.43
V
3.46
-2.25
R
I
3.60
-2.11
J
3.95
-1.76
H
3.92
-1.79
K
3.96
-1.76
B-V: -0.18 V-I: -0.14
Derivations
Heliocentric distance: 138.75 pc (6.6% margin of error)
Galactocentric distance: 7,409 pc
Transverse velocity: 23.1 km/s
3D heliocentric position and motion:
|
toward: |
Galactic center | Galactic rotation | North Galactic Pole |
| Position ( X, Y, Z) | -7.9 pc | -135.3 pc | -29.6 pc |
| Velocity (U, V, W) | -21.7 km/s | -15.6 km/s | -13.9 km/s |