V744 Centauri
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Centaurus |
| Right ascension | 13h 39m 59.807s[1] |
| Declination | –49° 56′ 59.84″[1] |
| Apparent magnitude (V) | 5.1-6.7 |
| Characteristics | |
| Spectral type | M5III |
| U−B color index | ? |
| B−V color index | ? |
| Variable type | Semiregular variable |
| Astrometry | |
| Radial velocity (Rv) | –10.7 km/s |
| Proper motion (μ) | RA: –100.11 ± 0.24[1] mas/yr Dec.: 18.74 ± 0.29[1] mas/yr |
| Parallax (π) | 6.35 ± 0.33[1] mas |
| Distance | 510 ± 30 ly (157 ± 8 pc) |
| Details | |
| Mass | ? M☉ |
| Radius | ? R☉ |
| Luminosity | ? L☉ |
| Temperature | ? K |
| Metallicity | ? |
| Rotation | ? |
| Age | ? years |
| Other designations | |
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.[2] It is unusual in that it is a red star with a high proper motion (greater than 50 milliarcseconds a year).[3]
References
- 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.Vizier catalog entry
- ↑ Simpson, Phil (2012). Guidebook to the Constellations: Telescopic Sights, Tales, and Myths. New York, New York: Springer Science & Business Media. p. 252. ISBN 9781441969415.
- ↑ 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. Bibcode:2012A&A...539A..86J. doi:10.1051/0004-6361/201118375.
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