V744 Centauri

V744 Centauri

A visual band light curve for V744 Centauri, plotted from ASAS data[1]
Observation data Epoch J2000      Equinox J2000
Constellation	Centaurus
Right ascension	13^h 39^m 59.80667^s[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 mas[2]
Distance	510 ± 30 ly (157 ± 8 pc)
Other designations
CD−49°8095, CPD−49°6265, HD 118767, HIP 66666, HR 5134, SAO 224317, TYC 8269-1422-1, GSC 08269-01422
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

1. "ASAS All Star Catalogue". The All Sky Automated Survey. Retrieved 8 December 2021.
2. van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600.Vizier catalog entry
3. Simpson, Phil (2012). Guidebook to the Constellations: Telescopic Sights, Tales, and Myths. New York, New York: Springer Science & Business Media. p. 252. ISBN 978-1-4419-6941-5.
4. 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. arXiv:1201.5315. Bibcode:2012A&A...539A..86J. doi:10.1051/0004-6361/201118375. S2CID 53404166.
5. Strohmeier, W.; Knigge, R.; Ott, H. (November 1964). "Bright Southern BV-Stars" (PDF). Information Bulletin on Variable Stars. 74. Bibcode:1964IBVS...74....1S. Retrieved 16 January 2025.
6. Kukarkin, B. V.; Efremov, Yu. N.; Frolov, M. S.; Medvedeva, G. I.; Kholopov, P. N.; Kurochkin, N. E.; Kukarkina, N. P.; Perova, N. B.; Fedorovich, V. P. (November 1968). "Identification List of the New Variable Stars Nominated in 1968" (PDF). Information Bulletin on Variable Stars. 311. Bibcode:1968IBVS..311....1K. Retrieved 16 January 2025.