ZZ Boötis
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Boötes |
| Right ascension | 13h 56m09.51770s |
| Declination | +25° 55′ 07.3579′ |
| Apparent magnitude (V) | 6.79-7.44[1] |
| Characteristics | |
| Spectral type | F3V[2] |
| Variable type | Algol[3] |
| Astrometry | |
| Radial velocity (Rv) | -29.50 km/s |
| Proper motion (μ) | RA: -96.52 mas/yr Dec.: -5.59 mas/yr |
| Parallax (π) | 9.59 ± 0.51 mas |
| Distance | 340 ± 20 ly (104 ± 6 pc) |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
ZZ Boötis is an eclipsing binary star in the constellation Boötes. It varies from magnitude 6.79 to 7.44 over 5 days.[1] The component stars appear to be of almost equal mass, differing by only 3%.[4]
References
- 1 2 Watson, Christopher (4 January 2010). "ZZ Boötis". AAVSO Website. American Association of Variable Star Observers. Retrieved 5 August 2014.
- ↑ Abt, Helmut A. (2009). "MK Classifications of Spectroscopic Binaries". The Astrophysical Journal Supplement. 180: 117. Bibcode:2009ApJS..180..117A. doi:10.1088/0067-0049/180/1/117.
- ↑ 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.
- ↑ Popper, D. M. (1983). "The F-type eclipsing binaries ZZ Bootis, CW Eridani, and BK Pegasi". Astronomical Journal. 88: 1242–56. Bibcode:1983AJ.....88.1242P. doi:10.1086/113415. ISSN 0004-6256.
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