64 Draconis
  | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Draco[1] |
| Right ascension | 20h 01m 28.65587s[2] |
| Declination | +64° 49′ 15.5038″[2] |
| Apparent magnitude (V) | 5.27[3] |
| Characteristics | |
| Spectral type | M1III[4] |
| Astrometry | |
| Parallax (π) | 5.55 ± 0.33 mas[2] |
| Distance | 590 ± 30 ly (180 ± 10 pc) |
| Other designations | |
| Database references | |
| SIMBAD | data |
64 Draconis (e Draconis) is a red giant star in the constellation of Draco. Its apparent magnitude is equal to 5.27 and it belongs to the spectral class M1III.
64 Draconis forms a faint naked-eye pair with 65 Draconis 12' away. It is a suspected variable with a brightness range in the Hipparcos photometric filter of 5.29 to 5.33.[5]
In Chinese astronomy, it belongs to the 天廚 (Tiān Chú) (Celestial Kitchen) asterism.
References
- ^ Universe Guide: 64 Draconis
- ^ a b c Van Leeuwen, F (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.
- ^ Ducati, J. R (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237. Bibcode:2002yCat.2237....0D.
- ^ Keenan, Philip C; McNeil, Raymond C (1989). "The Perkins catalog of revised MK types for the cooler stars". Astrophysical Journal Supplement Series. 71: 245. Bibcode:1989ApJS...71..245K. doi:10.1086/191373.
- ^ Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/gcvs. Originally published in: 2009yCat....102025S. 1. Bibcode:2009yCat....102025S.
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