L1 Puppis (HIP 34899)

L1 Puppis is a blue main-sequence star in the constellation Puppis. At 184 light years away, it shines at an apparent visual magnitude of 4.87. It an intrinsic variable star that varies between magntitudes 4.87 and 4.89 over a period of 22.08 hours. It is moving through the Galaxy at a speed of 25.4 km/s relative to the Sun. Its projected Galactic orbit carries it between 22,200 and 33,000 light years from the center of the Galaxy.

Sky position: RA 7h 13.2m, Dec -45 10.8'

Common designations: L-1 Puppis, HIP 34899, HD 56022

Spiral Galaxy M83

High-definition
Astronomy Poster


Brightest stars in Puppis:
(list all)

35

|    4.73

)   HR 3226

36

|    4.75

)   HR 2762

37

|    4.76

)   chi Puppis

38

|    4.78

)   r Puppis

39

|    4.82

)   HD 60414

40

|    4.83

)   A Puppis

41

|    4.83

)   w Puppis

42

|    4.84

)   d1 Puppis

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

Location of L1 Puppis circled
Map detail from Stars of the Northern Hemisphere
Hover over other bright stars to identify or click to jump.


Galactic Orbit of L1 Puppis

(compared to the Sun)

Eccentricity: 19.7% vs. 16.0%

Angle φ : 60.4 vs. 26.0

Semi-major axis : 8,463 pc vs. 8,686 pc

Semi-minor axis: 8,297 pc vs. 8,574 pc

Focus-to-center: 1,667 pc vs. 1,388 pc

Semilatus rectum : 8,134 pc vs. 8,464 pc

Perigalacticon: 6,795 pc vs. 7,297 pc

Apogalacticon: 10,130 pc vs. 10,074 pc
 


Some Tabulated XHIP Data for L1 Puppis
(see also: SIMBAD)

Astrometry
2007A&A...474..653V
  Position Proper Motion
Right Ascension: 108.30571325 0.12 mas -24.60 0.90 mas/yr.
Declination: -45.18252481 0.12 mas -90.30 0.80 mas/yr.
     
Galactic Longitude: 256.25801927 73.22 mas/yr.
Galactic Latitude: -15.30254244 -58.29 mas/yr.

Parallax: 17.69 0.14 mas


Spectrography

Spectral Type: B9 V 1978MSS...C02....0H.

Radial Velocity: 4.30 2.80 km/s [A rating] 2006AstL...32..759G.

Iron Abundance [Fe/H]: n/a
 



Photometry
 
band magnitude Abs. Mag.
U
B 4.87 1.11
V 4.87 1.11
R
I 4.86 1.10
J 5.02 1.26
H 4.95 1.19
K 4.87 1.11

  B-V: 0.00       V-I: +0.01


Derivations

Heliocentric distance: 56.52 pc (0.8% margin of error)

Galactocentric distance: 7,413 pc

Transverse velocity: 25.1 km/s

3D heliocentric position and motion:

toward:   

Galactic center Galactic rotation North Galactic Pole
Position ( X, Y, Z) -13.0 pc -53.0 pc -14.9 pc
Velocity (U, V, W) 19.1 km/s -4.7 km/s -16.2 km/s

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