Astronomy:ST Camelopardalis
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Short description: Star in the constellation Camelopardalis
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 04h 051m 13.348s[2] |
| Declination | +68° 10′ 07.65″[2] |
| Apparent magnitude (V) | 6.3 to 8.5[3] |
| Characteristics | |
| Evolutionary stage | Carbon star |
| Spectral type | C5,4(N5)[3] |
| B−V color index | +2.1[4] |
| Variable type | SRb[3] |
| Astrometry | |
| Proper motion (μ) | RA: −2.992±0.136[2] mas/yr Dec.: −3.237±0.185[2] mas/yr |
| Parallax (π) | 1.6725 ± 0.0989[2] mas |
| Distance | 2,000 ± 100 ly (600 ± 40 pc) |
| Absolute magnitude (MV) | −1.232[5] |
| Details | |
| Radius | 244[6] R☉ |
| Luminosity | 4,478[2] L☉ |
| Temperature | 3,388[6] K |
| Metallicity [Fe/H] | −0.1[7] dex |
| Other designations | |
| Database references | |
| SIMBAD | data |
ST Camelopardalis is a carbon star in the constellation of Camelopardalis. It has a radius of 244 R☉.[6]
Variability
ST Cam is a semiregular variable star. It is doubly periodic, with the two pulsation periods P0 and P1 being equal to 368.6 and 201 days respectively.[8]
References
- ↑ "Download Data". AAVSO. https://www.aavso.org/data-download.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
- ↑ 3.0 3.1 3.2 "ST Cam database entry". Combined General Catalog of Variable Stars (GCVS4.2, 2004 Ed.). CDS. http://webviz.u-strasbg.fr/viz-bin/VizieR-S?V*%20ST%20Cam. Retrieved 2018-10-14.
- ↑ Ita, Y.; Matsuura, M.; Ishihara, D.; Oyabu, S.; Takita, S.; Kataza, H.; Yamamura, Issei; Matsunaga, N. et al. (2010). "AKARI's infrared view on nearby stars. Using AKARI infrared camera all-sky survey, 2MASS, and Hipparcos catalogs". Astronomy and Astrophysics 514: A2. doi:10.1051/0004-6361/200913695. Bibcode: 2010A&A...514A...2I.
- ↑ Gontcharov, G. A. (2017). "VizieR Online Data Catalog: Tycho-2 red giant branch and carbon stars (Gontcharov, 2011)". VizieR On-Line Data Catalog. Bibcode: 2017yCat..90370769G.
- ↑ 6.0 6.1 6.2 Stassun K.G. (October 2019). "The revised TESS Input Catalog and Candidate Target List". The Astronomical Journal 158 (4): 138. doi:10.3847/1538-3881/ab3467. Bibcode: 2019AJ....158..138S.
- ↑ Lambert, David L.; Gustafsson, Bengt; Eriksson, Kjell; Hinkle, Kenneth H. (1986). "The Chemical Composition of Carbon Stars. I. Carbon, Nitrogen, and Oxygen in 30 Cool Carbon Stars in the Galactic Disk". The Astrophysical Journal Supplement Series 62: 373. doi:10.1086/191145. Bibcode: 1986ApJS...62..373L.
- ↑ Howarth, J. J.; Greaves, J. (February 2001). "ST Camelopardalis: A doubly periodic semiregular variable star" (in en). Journal of the British Astronomical Association 111: 40–42. ISSN 0007-0297. Bibcode: 2001JBAA..111...40H.
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