V744 Centauri

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V744 Centauri
V744CenLightCurve.png
A visual band light curve for V744 Centauri, plotted from ASAS data [1]
Observation data
Epoch J2000       Equinox J2000
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  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]

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References

  1. "ASAS All Star Catalogue". The All Sky Automated Survey. Retrieved 8 December 2021.
  2. 1 2 3 4 5 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.