J Puppis (HIP 38518)

J Puppis is a blue supergiant star in the constellation Puppis. At 1,650 light years away, it shines at an apparent visual magnitude of 4.22. It is moving through the Galaxy at a speed of 43.6 km/s relative to the Sun. Its projected Galactic orbit carries it between 16,600 and 24,500 light years from the center of the Galaxy.

Sky position: RA 7h 53.3m, Dec -48 6'

Common designations: J Puppis, HIP 38518, HD 64760, HR 3090

Galaxies
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Brightest stars in Puppis:
(list all)

5

|    3.17

)   Nu Puppis

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

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Galactic Orbit of J Puppis

(compared to the Sun)

Eccentricity: 19.4% vs. 16.0%

Angle φ : 168.5 vs. 26.0

Semi-major axis : 6,300 pc vs. 8,686 pc

Semi-minor axis: 6,180 pc vs. 8,574 pc

Focus-to-center: 1,221 pc vs. 1,388 pc

Semilatus rectum : 6,063 pc vs. 8,464 pc

Perigalacticon: 5,078 pc vs. 7,297 pc

Apogalacticon: 7,521 pc vs. 10,074 pc
 


Some Tabulated XHIP Data for J Puppis
(see also: SIMBAD)

Astrometry
2007A&A...474..653V
  Position Proper Motion
Right Ascension: 118.32567838 0.09 mas -5.70 0.80 mas/yr.
Declination: -48.10294835 0.09 mas 2.50 0.80 mas/yr.
     
Galactic Longitude: 262.05689543 -4.97 mas/yr.
Galactic Latitude: -10.42335531 -3.75 mas/yr.

Parallax: 1.97 0.10 mas


Spectrography

Spectral Type: B0.5 IB 1978MSS...C02....0H.

Radial Velocity: 41.00 4.10 km/s [A rating] 2006AstL...32..759G.

Iron Abundance [Fe/H]: n/a
 



Photometry
 
band magnitude Abs. Mag.
U 3.11 -5.41
B 4.09 -4.43
V 4.22 -4.30
R
I 4.33 -4.19
J 4.74 -3.78
H 4.71 -3.81
K 4.64 -3.88

  B-V: -0.13       V-I: -0.11


Derivations

Heliocentric distance: 506.05 pc (5.1% margin of error)

Galactocentric distance: 7,485 pc

Transverse velocity: 14.9 km/s

3D heliocentric position and motion:

toward:   

Galactic center Galactic rotation North Galactic Pole
Position ( X, Y, Z) -68.8 pc -492.9 pc -91.6 pc
Velocity (U, V, W) -17.2 km/s -36.7 km/s -16.3 km/s

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