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]

CC Andromedae
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
Distance1,310 ± 40 ly
(400 ± 10 pc)
Absolute bolometric
magnitude (Mbol)		1.25[6]
Details[6]
Mass1.98 M☉
Radius3.04 R☉
Surface gravity (log g)3.77±0.1 cgs
Temperature7,400 K
Rotational velocity (v sin i)20 km/s
Other designations
2MASS J00434801+4216557, BD+41 119, HIP 3432, SAO 36605, TYC 2805-1116-1
Database references
SIMBADdata

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
  1. 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.
  2. 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.
  3. Database entry, VizieR Online Data Catalog: UCAC4 Catalogue (Zacharias+, 2012), N. Zacharias et al., CDS ID I/322A Accessed on line 2018-10-29.
  4. 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.
  5. 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.
  6. 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.
  7. 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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