171 Puppis, a white main-sequence star in Puppis
171 Puppis is a white main-sequence star in the constellation Puppis. At 50 light years away, it shines at an apparent visual magnitude of 5.36.
171 Puppis (HIP 37853)
171 Puppis is a white main-sequence star in the constellation Puppis. At 50 light years away, it shines at an apparent visual magnitude of 5.36. The star's age is estimated to be 12.2 billion years but is certainly no less than 9.2 billion years and no greater than 14.4 billion years. The iron abundance of 171 Puppis is -0.78 (16.6% of the Sun). It is moving through the Galaxy at a speed of 162.6 km/s relative to the Sun. It came closest to the Sun 60,000 years ago when it had brightened to magnitude 4.76 from a distance of 38 light years.
Sky position: RA 7h 45.6m, Dec -34° 10.8'
Common designations: 171 Puppis, HIP 37853, HD 63077, Gliese 288 A
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Brightest stars in Puppis:
(list all)
| Rank | Mag. | Star |
| 71 | 5.22 | HR 3140 |
| 72 | 5.24 | F Puppis |
| 73 | 5.25 | HD 66888 |
| 74 | 5.27 | x Puppis |
| 75 | 5.28 | HD 46273 |
| 76 | 5.30 | E Puppis |
| 77 | 5.32 | 188 Puppis |
| 78 | 5.32 | HR 3315 |
| 79 | 5.33 | HR 3183 |
80
| 5.36
) 171 Puppis
| Rank | Mag. | Star |
| 81 | 5.36 | HR 3114 |
| 82 | 5.41 | y Puppis |
| 83 | 5.41 | HR 2981 |
| 84 | 5.42 | z Puppis |
| 85 | 5.44 | HR 3085 |
| 86 | 5.45 | HR 3326 |
| 87 | 5.48 | 5 Puppis |
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Galactic Orbit of 171 Puppis
(compared to the Sun)
E
ccentricity: 61.8% vs. 16.0%Angle φ : -125.0°vs. 26.0°
Semi-major axis : 7,742 pc vs. 8,686 pc
Semi-minor axis: 6,084 pc vs. 8,574 pc
Focus-to-center
: 4,787 pcvs. 1,388 pcSemilatus rectum : 4,782 pc vs. 8,464 pc
Perigalacticon: 2,955 pc vs. 7,297 pc
Apogalacticon
: 12,528 pcvs. 10,074 pcSome Tabulated XHIP Data for 171 Puppis
(see also: SIMBAD)
Astrometry
2007A&A...474..653V
| Position | Proper Motion | |
| Right Ascension: | 116.39657451° ±0.36 mas | -274.10 ±1.10 mas/yr. |
| Declination: | -34.17655078° ±0.39 mas | 1,687.00 ±1.10 mas/yr. |
| Galactic Longitude: | 249.11199213° | -1,600.81 mas/yr. |
| Galactic Latitude: | -4.80691060° | 598.76 mas/yr. |
Parallax: 65.75 ± 0.51 mas
Spectrography
Spectral Type: F9V 2006AJ....132..161G.
Radial Velocity: 106.16 ±0.10 km/s [A rating] 2002ApJS..141..503N.
Iron Abundance [Fe/H]:
-0.78 ±0.01 dex
2011A&A...530A.138C, 2007A&A...465..271R, 2005ApJS..161..444T, 1999MNRAS.305..693C, 1999A&A...341..241J, 1998A&A...330L..33J, 1996A&A...314..191G, 1994A&A...287..927G, 1994A&A...287..191P, 1993A&A...275..101E, 1991A&A...244..425Z, 1991A&A...241..501G, 1989A&A...208..171G, 1988A&A...199..269H, 1988A&A...195..226F, 1986A&A...169..201G, 1986A&A...160..264F, 1984Msngr..38...33E.
Photometry
| band | magnitude | Abs. Mag. |
| U | ||
| B | 5.95 | 5.04 |
| V | 5.36 | 4.45 |
| R | ||
| I | 4.66 | 3.75 |
| J | ||
| H | ||
| K |
B-V: +0.59 V-I: +0.70
Derivations
Heliocentric distance: 15.21 pc (0.8% margin of error)
Galactocentric distance: 7,405 pc
Transverse velocity: 123.2 km/s
3D heliocentric position and motion:
|
toward: |
Galactic center | Galactic rotation | North Galactic Pole |
| Position ( X, Y, Z) | -5.4 pc | -14.2 pc | -1.3 pc |
| Velocity (U, V, W) | -146.8 km/s | -61.1 km/s | 34.1 km/s |