16 Puppis, a blue subgiant star in Puppis
16 Puppis is a blue subgiant star in the constellation Puppis. At 464 light years away, it shines at an apparent visual magnitude of 4.4.
16 Puppis (HIP 39906)
16 Puppis is a blue subgiant star in the constellation Puppis. At 464 light years away, it shines at an apparent visual magnitude of 4.40. It is moving through the Galaxy at a speed of 22.3 km/s relative to the Sun. Its projected Galactic orbit carries it between 23,400 and 24,700 light years from the center of the Galaxy. It came closest to the Sun 5.6 million years ago when it had brightened to magnitude 2.67 from a distance of 210 light years.
Sky position: RA 8h 9.0m, Dec -19° 15'
Common designations: 16 Puppis, HIP 39906, HD 67797
Brightest stars in Puppis:
(list all)
| Rank | Mag. | Star |
| 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
| Rank | Mag. | Star |
| 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 |
| 22 | 4.47 | V Puppis |
| 23 | 4.49 | I Puppis |
Hover over other bright stars to identify or click to jump.
Galactic Orbit of 16 Puppis
(compared to the Sun)
E
ccentricity: 2.7% vs. 16.0%Angle φ : 123.2°vs. 26.0°
Semi-major axis : 7,369 pc vs. 8,686 pc
Semi-minor axis: 7,367 pc vs. 8,574 pc
Focus-to-center
: 197 pcvs. 1,388 pcSemilatus rectum : 7,364 pc vs. 8,464 pc
Perigalacticon: 7,172 pc vs. 7,297 pc
Apogalacticon
: 7,567 pcvs. 10,074 pcSome Tabulated XHIP Data for 16 Puppis
(see also: SIMBAD)
Astrometry
2007A&A...474..653V
| Position | Proper Motion | |
| Right Ascension: | 122.25684795° ±0.15 mas | -13.90 ±0.90 mas/yr. |
| Declination: | -19.24500097° ±0.15 mas | -5.40 ±1.00 mas/yr. |
| Galactic Longitude: | 239.03502952° | -2.83 mas/yr. |
| Galactic Latitude: | 7.39835626° | -14.64 mas/yr. |
Parallax: 7.01 ± 0.22 mas
Spectrography
Spectral Type: B4IV 2009A&A...501..297Z.
Radial Velocity: 19.90 ±1.20 km/s [A rating] 2006AstL...32..759G.
Iron Abundance [Fe/H]:
n/a
Photometry
band
magnitude
Abs. Mag.
U
3.65
-2.12
B
4.24
-1.53
V
4.40
-1.37
R
I
4.52
-1.25
J
4.99
-0.78
H
4.80
-0.97
K
4.77
-1.00
B-V: -0.16 V-I: -0.12
Derivations
Heliocentric distance: 142.48 pc (3.1% margin of error)
Galactocentric distance: 7,474 pc
Transverse velocity: 10.1 km/s
3D heliocentric position and motion:
|
toward: |
Galactic center | Galactic rotation | North Galactic Pole |
| Position ( X, Y, Z) | -72.7 pc | -121.2 pc | 18.3 pc |
| Velocity (U, V, W) | -12.4 km/s | -17.0 km/s | -7.2 km/s |