Stein 2051
Coordinates: 
04h 31m 11.52059s, +58° 58′ 37.4806″
| Astrometry | |
|---|---|
| Parallax (π) | 180.6 ± 0.8[1] mas |
| Distance | 18.06 ± 0.08 ly (5.54 ± 0.02 pc) |
| Other designations | |
| Database references | |
| SIMBAD | The system |
| A | |
| B | |
Stein 2051 (Gliese 169.1, G 175-034, LHS 26/27) is a nearby binary star system, containing a red dwarf (component A) and a degenerate star (white dwarf) (component B), located in constellation Camelopardalis at 18.06 ly from Earth.[1]
Stein 2051 is the nearest (red dwarf + white dwarf) separate binary system (40 Eridani BC is located closer (at 16.26 light-years),[10] but it is a part of a triple star system).
Stein 2051 B is the 6th nearest white dwarf after Sirius B, Procyon B, van Maanen's star, LP 145-141 and 40 Eridani B.
Distance
Stein 2051 distance estimates
| Source | Parallax, mas | Distance, pc | Distance, ly | Distance, Pm | Ref. |
|---|---|---|---|---|---|
| Gliese & Jahreiß (1991) | 181.9±1.1 | 5.5±0.03 | 17.93±0.11 | 169.6±1 | [2] |
| van Altena et al. (1995) | 180.6±0.8 | 5.537+0.025 −0.024 |
18.06±0.08 | 170.9±0.8 | [1] |
| Perryman et al. (1997) (Hipparcos) | 181.36±3.67 | 5.51±0.11 | 18±0.4 | 170.1+3.5 −3.4 |
[3] |
| Perryman et al. (1997) (Tycho) (A) | (absents) | [6] | |||
| Perryman et al. (1997) (Tycho) (B) | (absents) | [9] | |||
| van Leeuwen (2007) | 179.27±3.23 | 5.58±0.1 | 18.2±0.3 | 172.1+3.2 −3 |
[11] |
| RECONS TOP100 (2012) | 180.52±0.78[note 1] | 5.54±0.024 | 18.07±0.08 | 170.9±0.7 | [12] |
Non-trigonometric distance estimates are marked in italic. The most precise estimate is marked in bold.
Properties
The brighter of this two stars is A (a red dwarf), but the more massive is component B (a white dwarf).
Notes
- ↑ Weighted parallax based on parallaxes from van Altena et al. (1995) and van Leeuwen (2007).
References
- ↑ 1.0 1.1 1.2 1.3 Van Altena W. F., Lee J. T., Hoffleit E. D. (1995). "GCTP 986.01". The General Catalogue of Trigonometric Stellar Parallaxes (Fourth ed.). Retrieved 2014-11-23.
- ↑ 2.0 2.1 Gliese, W. and Jahreiß, H. (1991). "Gl 169.1". Preliminary Version of the Third Catalogue of Nearby Stars. Retrieved 2014-11-23.
- ↑ 3.0 3.1 Perryman et al. (1997). "HIP 21088". The Hipparcos and Tycho Catalogues. Retrieved 2014-11-23.
- ↑ Luyten, Willem Jacob (1979). "NLTT 13373". NLTT Catalogue.
- ↑ Luyten, Willem Jacob (1979). "LHS 26". LHS Catalogue, 2nd Edition.
- ↑ 6.0 6.1 Perryman et al. (1997). "HIP 21088". The Hipparcos and Tycho Catalogues. Retrieved 2014-11-23.
- ↑ Luyten, Willem Jacob (1979). "NLTT 13375". NLTT Catalogue.
- ↑ Luyten, Willem Jacob (1979). "LHS 27". LHS Catalogue, 2nd Edition.
- ↑ 9.0 9.1 Perryman et al. (1997). "TYC 3744-2062-1". The Hipparcos and Tycho Catalogues. Retrieved 2014-11-23.
- ↑ van Leeuwen F. (2007). "HIP 19849". Validation of the new Hipparcos reduction. Retrieved 2014-11-21.
- ↑ van Leeuwen F. (2007). "HIP 21088". Validation of the new Hipparcos reduction. Retrieved 2014-11-23.
- ↑ "RECONS TOP100". THE ONE HUNDRED NEAREST STAR SYSTEMS brought to you by RECONS (Research Consortium On Nearby Stars). 2012. Retrieved 2014-11-23.
External links
- "CCDM J04312+5858AB -- Double or multiple star". Centre de Données astronomiques de Strasbourg. Retrieved 2012-01-02. (the whole system)
- "NAME STEIN 2051A -- Star in double system". Centre de Données astronomiques de Strasbourg. Retrieved 2012-01-02. (component A)
- "GJ 169.1 B -- Star in double system". Centre de Données astronomiques de Strasbourg. Retrieved 2012-01-02. (component B)
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