V Cephei
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cepheus |
| Right ascension | 23h 56m 27.80s[1] |
| Declination | +83° 11′ 28.02″[1] |
| Apparent magnitude (V) | 6.5947[2] |
| Characteristics | |
| Spectral type | A3V[2] |
| B−V color index | 0.064[2] |
| Astrometry | |
| Radial velocity (Rv) | −12.9 ± 2[1] km/s |
| Proper motion (μ) | RA: 49.22[2] mas/yr Dec.: 6.48[2] mas/yr |
| Other designations | |
| Database references | |
| SIMBAD | data |
V Cephei is a white main sequence star in the constellation Cepheus. It only varies slightly by 0.03 of a magnitude. It was suspected of being variable by American astronomer Seth Carlo Chandler noting in 1890 that it varied by 0.7 magnitude but that it needed more confirmation. Subsequent observers were divided in whether they noted variability or not.[3] A subsequent study with photoelectric photometry showed no variability.[4]
See also[edit]
References[edit]
- ↑ 1.0 1.1 1.2 1.3 Lua error in Module:Citation/CS1 at line 379: attempt to call method 'match' (a nil value).
- ↑ 2.0 2.1 2.2 2.3 2.4 Lua error in Module:Citation/CS1 at line 379: attempt to call method 'match' (a nil value).
- ↑ Hoffleit, Dorrit (1985). "Was Harlow Shapley Right About V Cephei?". The Journal of the American Association of Variable Star Observers 14 (2): 64–66. Bibcode 1985JAVSO..14...64H. http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1985JAVSO..14...64H&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf.
- ↑ Fortier, George (1989). "Photoelectric Photometry of V Cephei". The Journal of the American Association of Variable Star Observers 18 (1): 49–51. Bibcode 1989JAVSO..18...49F. http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1989JAVSO..18...49F&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf.
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