Astronomy:V744 Centauri
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Short description: Star in the constellation Centaurus
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Centaurus |
| Right ascension | 13h 39m 59.80667s[2] |
| Declination | –49° 56′ 59.8395″[2] |
| Apparent magnitude (V) | 5.1-6.7 |
| Characteristics | |
| Spectral type | M5III |
| Variable type | Semiregular variable |
| Astrometry | |
| Radial velocity (Rv) | –10.7 km/s |
| Proper motion (μ) | RA: –100.11 ± 0.24[2] mas/yr Dec.: 18.74 ± 0.29[2] mas/yr |
| Parallax (π) | 6.35 ± 0.33[2] mas |
| Distance | 510 ± 30 ly (157 ± 8 pc) |
| Other designations | |
| Database references | |
| SIMBAD | data |
V744 Centauri, is a semi-regular variable pulsating star in the constellation Centaurus. Located 3 degrees north north east of Epsilon Centauri, It ranges from apparent magnitude 5.1 to 6.7 over 90 days.[3] It is unusual in that it is a red star with a high proper motion (greater than 50 milliarcseconds a year).[4] When it is near its maximum brightness, it is visible to the naked eye under good observing conditions.
In 1964, Wolfgang Strohmeier et al. announced the discovery that the star is a variable star.[5] It was given its variable star designation, V744 Centauri, in 1968.[6]
References
- ↑ "ASAS All Star Catalogue". The All Sky Automated Survey. http://www.astrouw.edu.pl/asas/?page=aasc.
- ↑ 2.0 2.1 2.2 2.3 2.4 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. doi:10.1051/0004-6361:20078357. Bibcode: 2007A&A...474..653V. http://www.aanda.org/articles/aa/full/2007/41/aa8357-07/aa8357-07.html.Vizier catalog entry
- ↑ Simpson, Phil (2012). Guidebook to the Constellations: Telescopic Sights, Tales, and Myths. New York, New York: Springer Science & Business Media. pp. 252. ISBN 978-1-4419-6941-5. https://books.google.com/books?id=7gde2t9ta4QC&pg=PA252.
- ↑ Jiménez-Esteban, F. M.; Caballero, J. A.; Dorda, R.; Miles-Páez, P. A.; Solano, E. (2012). "Identification of red high proper-motion objects in Tycho-2 and 2MASS catalogues using Virtual Observatory tools". Astronomy & Astrophysics 539: 12. doi:10.1051/0004-6361/201118375. Bibcode: 2012A&A...539A..86J.
- ↑ Strohmeier, W.; Knigge, R.; Ott, H. (November 1964). "Bright Southern BV-Stars". Information Bulletin on Variable Stars 74. Bibcode: 1964IBVS...74....1S. https://ibvs.konkoly.hu/pub/ibvs/0001/0074.pdf. Retrieved 16 January 2025.
- ↑ Kukarkin, B. V.; Efremov, Yu. N.; Frolov, M. S.; Medvedeva, G. I.; Kholopov, P. N.; Kurochkin, N. E.; Kukarkina, N. P.; Perova, N. B. et al. (November 1968). "Identification List of the New Variable Stars Nominated in 1968". Information Bulletin on Variable Stars 311. Bibcode: 1968IBVS..311....1K. https://ibvs.konkoly.hu/pub/ibvs/0301/0311.pdf. Retrieved 16 January 2025.
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