Omicron Puppis (HIP 38070)

Omicron Puppis is a blue subgiant star in the constellation Puppis. At 1,401 light years away, it shines at an apparent visual magnitude of 4.40. Omicron Puppis is the primary component of a multiple-star system. It is moving through the Galaxy at a speed of 26.9 km/s relative to the Sun. Its projected Galactic orbit carries it between 24,800 and 32,000 light years from the center of the Galaxy. It came closest to the Sun 8.7 million years ago when it had brightened to magnitude 3.99 from a distance of 1,162 light years.

Sky position: RA 7h 48.1m, Dec -25° 56.4'

Common designations: Omicron Puppis, HIP 38070, HD 63462

Learn how to find naked-eye stars with:

Stars of the Northern Hemisphere
Deluxe Astronomy Poster

Brightest stars in Puppis:
(list all)

6

|    3.25

)   Sigma Puppis

7

|    3.34

)   Azmidiske

8

|    3.62

)   c Puppis

9

|    3.71

)   a Puppis

10

|    3.80

)   Markeb

11

|    3.94

)   3 Puppis

12

|    4.10

)   HR 3055

13

|    4.20

)   11 Puppis

14

|    4.22

)   J Puppis

15

|    4.40

)   Omicron Puppis

16

|    4.40

)   16 Puppis

17

|    4.42

)   L2 Puppis

18

|    4.42

)   h2 Puppis

19

|    4.44

)   Gliese 279

20

|    4.44

)   h1 Puppis

21

|    4.44

)   q Puppis

22

|    4.47

)   V Puppis

Location of Omicron Puppis circled
Map detail from Stars of the Northern Hemisphere
Hover over other bright stars to identify or click to jump.

Galactic Orbit of Omicron Puppis
(compared to the Sun)

Eccentricity: 12.7% vs. 16.0%

Angle φ : 4.7° vs. 26.0°

Semi-major axis : 8,715 pc vs. 8,686 pc

Semi-minor axis: 8,644 pc vs. 8,574 pc

Focus-to-center: 1,109 pc vs. 1,388 pc

Semilatus rectum : 8,574 pc vs. 8,464 pc

Perigalacticon: 7,606 pc vs. 7,297 pc

Apogalacticon: 9,823 pc vs. 10,074 pc
 
Some Tabulated XHIP Data for Omicron Puppis
(see also: SIMBAD)

Astrometry
 2007A&A...474..653V
  Position Proper Motion
Right Ascension: 117.02156224° ±0.11 mas -10.09 ±0.12 mas/yr.
Declination: -25.93718043° ±0.16 mas 4.26 ±0.17 mas/yr.
     
Galactic Longitude: 242.24603816° -8.77 mas/yr.
Galactic Latitude: -0.20764416° -6.55 mas/yr.

Parallax: 2.30 ± 0.23 mas

Spectrography

Spectral Type: B1 IV:NNE 1988MSS...C04....0H.

Radial Velocity: 15.00 ±10.00 km/s [B rating] 2007AN....328..889K.

Iron Abundance [Fe/H]: n/a
 


Photometry
 
band magnitude Abs. Mag.
U 3.43 -4.74
B 4.33 -3.84
V 4.40 -3.77
R
I 4.35 -3.82
J 4.57 -3.60
H 4.44 -3.73
K 4.17 -4.00

  B-V: -0.07       V-I: +0.05

Derivations

Heliocentric distance: 429.63 pc (10.0% margin of error)

Galactocentric distance: 7,609 pc

Transverse velocity: 22.3 km/s

3D heliocentric position and motion:

toward:   

Galactic center Galactic rotation North Galactic Pole
Position ( X, Y, Z) -200.1 pc -380.2 pc -1.6 pc
Velocity (U, V, W) -22.8 km/s -4.9 km/s -13.4 km/s

< Previous | HIP  38070 | Next >