1 Puppis, a red giant star in Puppis
1 Puppis is a red giant star in the constellation Puppis. At 770 light years away, it shines at an apparent visual magnitude of 4.63.
1 Puppis (HIP 37648)
1 Puppis is a red giant star in the constellation Puppis. At 770 light years away, it shines at an apparent visual magnitude of 4.63. 1 Puppis is the primary component of a multiple-star system. It is moving through the Galaxy at a speed of 49.1 km/s relative to the Sun. Its projected Galactic orbit carries it between 22,300 and 29,600 light years from the center of the Galaxy. It came closest to the Sun 3.1 million years ago when it had brightened to magnitude 4.01 from a distance of 579 light years.
Sky position: RA 7h 43.5m, Dec -28° 24.6'
Common designations: 1 Puppis, HIP 37648, HD 62576
Brightest stars in Puppis:
(list all)
| Rank | Mag. | Star |
| 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 |
| 23 | 4.49 | I Puppis |
| 24 | 4.49 | b Puppis |
| 25 | 4.53 | f Puppis |
| 26 | 4.61 | HR 3131 |
27
| 4.63
) 1 Puppis
| Rank | Mag. | Star |
| 28 | 4.63 | HR 3089 |
| 29 | 4.65 | v1 Puppis |
| 30 | 4.65 | HR 2881 |
| 31 | 4.65 | HR 2922 |
| 32 | 4.69 | m Puppis |
| 33 | 4.69 | Q Puppis |
| 34 | 4.72 | 19 Puppis |
Hover over other bright stars to identify or click to jump.
Galactic Orbit of 1 Puppis
(compared to the Sun)
E
ccentricity: 14.0% vs. 16.0%Angle φ : -73.9°vs. 26.0°
Semi-major axis : 7,954 pc vs. 8,686 pc
Semi-minor axis: 7,876 pc vs. 8,574 pc
Focus-to-center
: 1,112 pcvs. 1,388 pcSemilatus rectum : 7,799 pc vs. 8,464 pc
Perigalacticon: 6,842 pc vs. 7,297 pc
Apogalacticon
: 9,067 pcvs. 10,074 pcSome Tabulated XHIP Data for 1 Puppis
(see also: SIMBAD)
Astrometry
2007A&A...474..653V
| Position | Proper Motion | |
| Right Ascension: | 115.88498202° ±0.12 mas | -13.73 ±0.15 mas/yr. |
| Declination: | -28.41095715° ±0.17 mas | 30.01 ±0.21 mas/yr. |
| Galactic Longitude: | 243.88030649° | -32.87 mas/yr. |
| Galactic Latitude: | -2.32245675° | 3.00 mas/yr. |
Parallax: 4.22 ± 0.23 mas
Spectrography
Spectral Type: M1III 2008ApJS..176..216A.
Radial Velocity: 32.40 ±0.30 km/s [A rating] 2006AstL...32..759G.
Iron Abundance [Fe/H]:
n/a
Photometry
band
magnitude
Abs. Mag.
U
B
6.26
-0.60
V
4.63
-2.24
R
I
3.05
-3.82
J
1.77
-5.09
H
1.00
-5.87
K
0.78
-6.08
B-V: +1.63 V-I: +1.58
Derivations
Heliocentric distance: 236.13 pc (5.5% margin of error)
Galactocentric distance: 7,507 pc
Transverse velocity: 36.9 km/s
3D heliocentric position and motion:
|
toward: |
Galactic center | Galactic rotation | North Galactic Pole |
| Position ( X, Y, Z) | -103.9 pc | -211.8 pc | -9.6 pc |
| Velocity (U, V, W) | -47.3 km/s | -13.0 km/s | 2.0 km/s |