d1 Puppis, a blue main-sequence star in Puppis
d1 Puppis is a blue main-sequence star in the constellation Puppis. At 591 light years away, it shines at an apparent visual magnitude of 4.84.
d1 Puppis (HIP 37297)
d1 Puppis is a blue main-sequence star in the constellation Puppis. At 591 light years away, it shines at an apparent visual magnitude of 4.84. It is moving through the Galaxy at a speed of 34.8 km/s relative to the Sun and is part of the NGC 2451A moving group. Its projected Galactic orbit carries it between 22,900 and 25,000 light years from the center of the Galaxy. It came closest to the Sun 3.9 million years ago when it had brightened to magnitude 3.91 from a distance of 385 light years.
Sky position: RA 7h 39.5m, Dec -38° 18.6'
Common designations: d-1 Puppis, HIP 37297, HD 61831, HR 2961
Brightest stars in Puppis:
(list all)
| Rank | Mag. | Star |
| 33 | 4.69 | Q Puppis |
| 34 | 4.72 | 19 Puppis |
| 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
| Rank | Mag. | Star |
| 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 |
Hover over other bright stars to identify or click to jump.
Galactic Orbit of d1 Puppis
(compared to the Sun)
E
ccentricity: 4.4% vs. 16.0%Angle φ : -111.4°vs. 26.0°
Semi-major axis : 7,351 pc vs. 8,686 pc
Semi-minor axis: 7,344 pc vs. 8,574 pc
Focus-to-center
: 324 pcvs. 1,388 pcSemilatus rectum : 7,337 pc vs. 8,464 pc
Perigalacticon: 7,027 pc vs. 7,297 pc
Apogalacticon
: 7,675 pcvs. 10,074 pcSome Tabulated XHIP Data for d1 Puppis
(see also: SIMBAD)
Astrometry
2007A&A...474..653V
| Position | Proper Motion | |
| Right Ascension: | 114.86397513° ±0.12 mas | -21.13 ±0.14 mas/yr. |
| Declination: | -38.30806025° ±0.13 mas | 15.78 ±0.14 mas/yr. |
| Galactic Longitude: | 252.13784664° | -23.95 mas/yr. |
| Galactic Latitude: | -7.89787939° | -11.04 mas/yr. |
Parallax: 5.87 ± 0.16 mas
Spectrography
Spectral Type: B3 V 1982MSS...C03....0H.
Radial Velocity: 26.40 ±2.80 km/s [A rating] 2006AstL...32..759G.
Iron Abundance [Fe/H]:
n/a
Photometry
band
magnitude
Abs. Mag.
U
B
4.65
-1.64
V
4.84
-1.45
R
I
4.98
-1.31
J
5.22
-1.07
H
5.33
-0.96
K
5.34
-0.95
B-V: -0.19 V-I: -0.14
Derivations
Heliocentric distance: 181.38 pc (fitted to cluster)
Galactocentric distance: 7,457 pc
Transverse velocity: 22.7 km/s
3D heliocentric position and motion:
|
toward: |
Galactic center | Galactic rotation | North Galactic Pole |
| Position ( X, Y, Z) | -55.1 pc | -171.0 pc | -24.9 pc |
| Velocity (U, V, W) | -27.2 km/s | -17.3 km/s | -13.0 km/s |