4 Puppis (HIP 37891)

4 Puppis is a white subgiant star in the constellation Puppis. At 234 light years away, it shines at an apparent visual magnitude of 5.03. The star's age is estimated to be 800 million years but is certainly no less than 700 million years and no greater than 900 million years. The iron abundance of 4 Puppis is +0.01 (102.3% of the Sun). It is moving through the Galaxy at a speed of 4.7 km/s relative to the Sun. Its projected Galactic orbit carries it between 24,000 and 36,000 light years from the center of the Galaxy.

Sky position: RA 7h 45.9m, Dec -14 33.6'

Common designations: 4 Puppis, HIP 37891, HD 62952

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Brightest stars in Puppis:
(list all)

43

|    4.85

)   HD 59612

44

|    4.87

)   L1 Puppis

45

|    4.92

)   H Puppis

46

|    4.94

)   HR 2608

47

|    4.98

)   140 Puppis

48

|    4.99

)   HR 2549

49

|    4.99

)   20 Puppis

50

|    5.01

)   212 Puppis

51

|    5.03

)   HR 2770

52

|    5.03

)   4 Puppis

53

|    5.04

)   Gliese 284

54

|    5.05

)   Y Puppis

55

|    5.06

)   n Puppis

56

|    5.07

)   t Puppis

57

|    5.07

)   HR 3035

58

|    5.08

)   N Puppis

59

|    5.09

)   12 Puppis

Location of 4 Puppis circled
Map detail from Stars of the Northern Hemisphere
Hover over other bright stars to identify or click to jump.


Galactic Orbit of 4 Puppis

(compared to the Sun)

Eccentricity: 20.0% vs. 16.0%

Angle φ : 20.9 vs. 26.0

Semi-major axis : 9,202 pc vs. 8,686 pc

Semi-minor axis: 9,017 pc vs. 8,574 pc

Focus-to-center: 1,840 pc vs. 1,388 pc

Semilatus rectum : 8,835 pc vs. 8,464 pc

Perigalacticon: 7,363 pc vs. 7,297 pc

Apogalacticon: 11,042 pc vs. 10,074 pc
 


Some Tabulated XHIP Data for 4 Puppis
(see also: SIMBAD)

Astrometry
2007A&A...474..653V
  Position Proper Motion
Right Ascension: 116.48698666 0.44 mas -10.64 0.39 mas/yr.
Declination: -14.56382021 0.33 mas 6.30 0.28 mas/yr.
     
Galactic Longitude: 232.14374835 -10.75 mas/yr.
Galactic Latitude: 5.06526092 -6.12 mas/yr.

Parallax: 13.87 0.64 mas


Spectrography

Spectral Type: F0IV 1995ApJS...99..135A.

Radial Velocity: -2.00 4.20 km/s [A rating] 2006AstL...32..759G.

Iron Abundance [Fe/H]: 0.01 0.15 dex  2009A&A...501..941H.
 



Photometry
 
band magnitude Abs. Mag.
U
B 5.37 1.09
V 5.03 0.75
R
I 4.68 0.39
J 4.57 0.29
H 4.33 0.04
K 4.24 -0.04

  B-V: +0.34       V-I: +0.35


Derivations

Heliocentric distance: 71.91 pc (4.6% margin of error)

Galactocentric distance: 7,444 pc

Transverse velocity: 4.2 km/s

3D heliocentric position and motion:

toward:   

Galactic center Galactic rotation North Galactic Pole
Position ( X, Y, Z) -44.0 pc -56.6 pc 6.3 pc
Velocity (U, V, W) -1.8 km/s 3.7 km/s -2.3 km/s

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