CC Andromedae
CC Andromedae (CC And) is a variable star in the constellation Andromeda. It is a pulsating star of the Delta Scuti type, with an apparent visual magnitude that varies between 9.19 and 9.46 with a periodicity of 3 hours.[2]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Andromeda |
Right ascension | 00h 43m 48.01231s[1] |
Declination | +42° 16′ 55.76902″[1] |
Apparent magnitude (V) | 9.19 – 9.46 variable [2] |
Characteristics | |
Spectral type | F3IV-V[2] |
Apparent magnitude (R) | 9.40[3] |
Apparent magnitude (B) | 9.693[4] |
Apparent magnitude (V) | 9.347[4] |
Apparent magnitude (G) | 9.3034[1] |
Apparent magnitude (J) | 8.586[5] |
Apparent magnitude (H) | 8.526[5] |
Apparent magnitude (K) | 8.49[5] |
U−B color index | 0.11[6] |
B−V color index | 0.3162[4] |
Variable type | δ Sct[2] |
Astrometry | |
Radial velocity (Rv) | −9.5±1.2[7] km/s |
Proper motion (μ) | RA: −8.157±0.096 [1] mas/yr Dec.: −4.070±0.137[1] mas/yr |
Parallax (π) | 2.4844 ± 0.0667[1] mas |
Distance | 1,310 ± 40 ly (400 ± 10 pc) |
Absolute bolometric magnitude (Mbol) | 1.25[6] |
Details[6] | |
Mass | 1.98 M☉ |
Radius | 3.04 R☉ |
Surface gravity (log g) | 3.77±0.1 cgs |
Temperature | 7,400 K |
Rotational velocity (v sin i) | 20 km/s |
Other designations | |
Database references | |
SIMBAD | data |
The stellar classification of CC Andromedae is F3IV-V, as it shows intermediate characteristics between a subgiant and a main sequence star. The brightness variations are the result of 7 different pulsation modes, most of which are non-radial.[6]
References
- Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- CC And, database entry, Combined General Catalog of Variable Stars (GCVS4.2, 2004 Ed.), N. N. Samus, O. V. Durlevich, et al., CDS ID II/250 Accessed on line 2018-10-29.
- Database entry, VizieR Online Data Catalog: UCAC4 Catalogue (Zacharias+, 2012), N. Zacharias et al., CDS ID I/322A Accessed on line 2018-10-29.
- Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (2000), "The Tycho-2 catalogue of the 2.5 million brightest stars", Astronomy & Astrophysics, 355: L27–L30, Bibcode:2000A&A...355L..27H.
- Cutri, R. M.; Skrutskie, M. F.; Van Dyk, S.; et al. (June 2003). "VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". CDS/ADC Collection of Electronic Catalogues (2246): II/246. Bibcode:2003yCat.2246....0C.
- Fu, J. -N.; Jiang, S. Y. (1995). "The multiple frequencies of the δ Scuti variable CC Andromedae". Astronomy and Astrophysics Supplement. 110: 303. Bibcode:1995A&AS..110..303F.
- de Bruijne, J. H. J.; Eilers, A.-C. (October 2012), "Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project", Astronomy & Astrophysics, 546: 14, arXiv:1208.3048, Bibcode:2012A&A...546A..61D, doi:10.1051/0004-6361/201219219, A61.
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