Stein 2051

Coordinates: 04^h 31^m 11.52059^s, +58° 58′ 37.4806″

Stein 2051

Astrometry
Parallax (π)	180.6 ± 0.8[1] mas
Distance	18.06 ± 0.08 ly (5.54 ± 0.02 pc)
Other designations
The system: Stein 2051 G 175-34 GJ 169.1[2] PLX 986.01[1] WDS J04312+5858AB HIP 21088[3] A: NLTT 13373[4] LHS 26[5] TYC 3744-412-1[6] 2MASS J04311147+5858375 WISE J043113.20+585816.7 B: AC +58 2500 EGGR 180 WD 0426+58 WD 0426+585 WD 0426+588 NLTT 13375[7] LHS 27[8] TYC 3744-2062-1[9] 2MASS J04311201+5858476
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.

Properties

The brighter of this two stars is A (a red dwarf), but the more massive is component B (a white dwarf).

Notes

References

1. 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. Gliese, W. and Jahreiß, H. (1991). "Gl 169.1". Preliminary Version of the Third Catalogue of Nearby Stars. Retrieved 2014-11-23.
3. Perryman; et al. (1997). "HIP 21088". The Hipparcos and Tycho Catalogues. Retrieved 2014-11-23.
4. Luyten, Willem Jacob (1979). "NLTT 13373". NLTT Catalogue.
5. Luyten, Willem Jacob (1979). "LHS 26". LHS Catalogue, 2nd Edition.
6. Perryman; et al. (1997). "HIP 21088". The Hipparcos and Tycho Catalogues. Retrieved 2014-11-23.
7. Luyten, Willem Jacob (1979). "NLTT 13375". NLTT Catalogue.
8. Luyten, Willem Jacob (1979). "LHS 27". LHS Catalogue, 2nd Edition.
9. Perryman; et al. (1997). "TYC 3744-2062-1". The Hipparcos and Tycho Catalogues. Retrieved 2014-11-23.
10. Perryman; et al. (1997). "HIP 19849". The Hipparcos and Tycho Catalogues. Retrieved 2014-11-21.

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)