CC Andromedae

Last updated
CC Andromedae
CCAndLightCurve.png
The visual band light curve of CC Andromedae, adapted from Rousseau et al. [1]
Observation data
Epoch J2000       Equinox J2000
Constellation Andromeda
Right ascension 00h 43m 48.01231s [2]
Declination +42° 16′ 55.76902″ [2]
Apparent magnitude  (V)9.19 – 9.46 variable [3]
Characteristics
Spectral type F3IV-V [3]
Apparent magnitude  (R)9.40 [4]
Apparent magnitude  (B)9.693 [5]
Apparent magnitude  (V)9.347 [5]
Apparent magnitude  (G)9.3034 [2]
Apparent magnitude  (J)8.586 [6]
Apparent magnitude  (H)8.526 [6]
Apparent magnitude  (K)8.49 [6]
U−B color index 0.11 [7]
B−V color index 0.3162 [5]
Variable type δ Sct [3]
Astrometry
Radial velocity (Rv)−9.5±1.2 [8] km/s
Proper motion (μ)RA: -8.198 [2] mas/yr
Dec.: -3.920 [2] mas/yr
Parallax (π)2.6339±0.0175  mas [2]
Distance 1,238 ± 8  ly
(380 ± 3  pc)
Absolute bolometric
magnitude  (Mbol)		1.25 [7]
Details [7]
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
2MASS J00434801+4216557, BD+41 119, HIP  3432, SAO  36605, TYC 2805-1116-1, Gaia EDR3 387336407206270080
Database references
SIMBAD data

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. [3]

The variability of CC Andromedae was discovered accidentally, by Olin Eggen on October 22, 1952, when he attempted to use it as a comparison star for measuring the brightness and colors of stars in the Andromeda Galaxy which is about one degree away from CC Andromedae. [9]

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, [7] making it a suspected Gamma Doradus variable too. [10]

References

  1. ↑ Rousseau, C.; Bourassa, J. I.; Milone, E. F. (July 1988). "VBI Light Curves of CC And". Information Bulletin on Variable Stars. 3211 (1): 1. Bibcode:1988IBVS.3211....1R . Retrieved 7 October 2021.
  2. 1 2 3 4 5 6 Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics . 649: A1. arXiv: 2012.01533 . Bibcode:2021A&A...649A...1G. doi: 10.1051/0004-6361/202039657 . S2CID   227254300. (Erratum:  doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
  3. 1 2 3 4 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.
  4. ↑ Database entry, VizieR Online Data Catalog: UCAC4 Catalogue (Zacharias+, 2012), N. Zacharias et al., CDS ID I/322A Accessed on line 2018-10-29.
  5. 1 2 3 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.
  6. 1 2 3 Cutri, Roc M.; Skrutskie, Michael F.; Van Dyk, Schuyler D.; Beichman, Charles A.; Carpenter, John M.; Chester, Thomas; Cambresy, Laurent; Evans, Tracey E.; Fowler, John W.; Gizis, John E.; Howard, Elizabeth V.; Huchra, John P.; Jarrett, Thomas H.; Kopan, Eugene L.; Kirkpatrick, J. Davy; Light, Robert M.; Marsh, Kenneth A.; McCallon, Howard L.; Schneider, Stephen E.; Stiening, Rae; Sykes, Matthew J.; Weinberg, Martin D.; Wheaton, William A.; Wheelock, Sherry L.; Zacarias, N. (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.
  7. 1 2 3 4 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.
  8. ↑ 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, S2CID   59451347, A61.
  9. ↑ Lindblad, Per Olof; Eggen, Olin J. (December 1953). "A New Short-Period Variable Star: BD+41°119". Publications of the Astronomical Society of the Pacific. 65 (387): 291. Bibcode:1953PASP...65..291L. doi: 10.1086/126629 . S2CID   122936379 . Retrieved 31 March 2023.
  10. ↑ Liakos, Alexios; Niarchos, Panagiotis (2016), "Catalogue and properties of δ Scuti stars in binaries", Monthly Notices of the Royal Astronomical Society, 465 (1): 1181–1200, arXiv: 1611.00200 , Bibcode:2017MNRAS.465.1181L, doi: 10.1093/mnras/stw2756
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.