p Carinae, a blue main-sequence star in Carina
p Carinae is a blue main-sequence star in the constellation Carina. At 484 light years away, it is the 233rd brightest star in the Earth's sky, where it shines at an apparent visual magnitude of 3.3.
p Carinae (HIP 51576)
p Carinae is a blue main-sequence star in the constellation Carina. At 484 light years away, it is the 233rd brightest star in the Earth's sky, where it shines at an apparent visual magnitude of 3.30. It is moving through the Galaxy at a speed of 29.7 km/s relative to the Sun and is part of the Southern Pleiades moving group. Its projected Galactic orbit carries it between 18,000 and 24,200 light years from the center of the Galaxy. It came closest to the Sun 4.3 million years ago when it had brightened to magnitude 1.73 from a distance of 235 light years.
Sky position: RA 10h 32.0m, Dec -61° 41.4'
Common designations: p Carinae, HIP 51576, HD 91465
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Brightest stars in Carina:
(list all)
1
| -0.62
) Canopus
| 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
| Rank | Mag. | Star |
| 9 | 3.39 | q Carinae |
| 10 | 3.43 | a Carinae |
| 11 | 3.46 | chi Carinae |
| 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 |
Galactic Orbit of p Carinae
(compared to the Sun)
E
ccentricity: 14.9% vs. 16.0%Angle φ : 160.1°vs. 26.0°
Semi-major axis : 6,473 pc vs. 8,686 pc
Semi-minor axis: 6,401 pc vs. 8,574 pc
Focus-to-center
: 961 pcvs. 1,388 pcSemilatus rectum : 6,330 pc vs. 8,464 pc
Perigalacticon: 5,512 pc vs. 7,297 pc
Apogalacticon
: 7,434 pcvs. 10,074 pcSome Tabulated XHIP Data for p Carinae
(see also: SIMBAD)
Astrometry
2007A&A...474..653V
| Position | Proper Motion | |
| Right Ascension: | 158.00618286° ±0.33 mas | -17.01 ±0.41 mas/yr. |
| Declination: | -61.68536026° ±0.34 mas | 11.50 ±0.37 mas/yr. |
| Galactic Longitude: | 287.18014159° | -20.50 mas/yr. |
| Galactic Latitude: | -3.15390081° | 1.23 mas/yr. |
Parallax: 6.75 ± 0.40 mas
Spectrography
Spectral Type: B4Ve 1982ApJS...50...55S.
Radial Velocity: 26.00 ±2.60 km/s [A rating] 2006AstL...32..759G.
Iron Abundance [Fe/H]:
n/a
Photometry
band
magnitude
Abs. Mag.
U
2.51
-3.35
B
3.21
-2.65
V
3.30
-2.56
R
I
3.33
-2.53
J
3.55
-2.31
H
3.39
-2.47
K
3.24
-2.62
B-V: -0.09 V-I: -0.03
Derivations
Heliocentric distance: 148.54 pc (fitted to cluster)
Galactocentric distance: 7,357 pc
Transverse velocity: 14.5 km/s
3D heliocentric position and motion:
|
toward: |
Galactic center | Galactic rotation | North Galactic Pole |
| Position ( X, Y, Z) | 43.8 pc | -141.7 pc | -8.2 pc |
| Velocity (U, V, W) | -6.1 km/s | -29.1 km/s | -0.6 km/s |