Astronomy:V450 Aquilae
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Short description: Star in the constellation Aquila
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Aquila |
| Right ascension | 19h 33m 46.031s[2] |
| Declination | +05° 27′ 56.54″[2] |
| Apparent magnitude (V) | 6.48 |
| Characteristics | |
| Spectral type | M5-5.5III |
| B−V color index | 1.471 |
| Variable type | Semiregular |
| Astrometry | |
| Radial velocity (Rv) | 3 km/s |
| Proper motion (μ) | RA: −5.26 ± 0.53[2] mas/yr Dec.: −24.24 ± 0.32[2] mas/yr |
| Parallax (π) | 4.94 ± 0.47[2] mas |
| Distance | 660 ± 60 ly (200 ± 20 pc) |
| Absolute magnitude (MV) | −1.87 |
| Details | |
| Luminosity | 2172[3] L☉ |
| Temperature | 3326[3] K |
| Other designations | |
| Database references | |
| SIMBAD | data |
V450 Aquilae is semi-regular pulsating star in the constellation Aquila. Located around 660 light-years distant, it shines with a luminosity approximately 2172 times that of the Sun and has a surface temperature of 3326 K.[3]
References
- ↑ Percy, John R.; Wilson, Joseph B.; Henry, Gregory W. (August 2001). "Long-Term VRI Photometry of Small-Amplitude Red Variables. I. Light Curves and Periods". Publications of the Astronomical Society of the Pacific 113 (786): 983–996. doi:10.1086/322153. Bibcode: 2001PASP..113..983P.
- ↑ 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
- ↑ 3.0 3.1 3.2 McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012). "Fundamental Parameters and Infrared Excesses of Hipparcos Stars". Monthly Notices of the Royal Astronomical Society 427 (1): 343–57. doi:10.1111/j.1365-2966.2012.21873.x. Bibcode: 2012MNRAS.427..343M.
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