Astronomy:V450 Aquilae
From HandWiki
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) | 6.14 to 6.86[3] |
| Characteristics | |
| Evolutionary stage | AGB[4] |
| Spectral type | M5-5.5III |
| B−V color index | 1.471 |
| Variable type | SRb[3] |
| 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[5] L☉ |
| Temperature | 3326[5] 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 2,172 times that of the Sun and has a surface temperature of 3,326 K.[5] The star varies in brightness from magnitude from 6.14 to 6.86, so when it is at its brightest, it will be faintly visible to the naked eye.
Cuno Hoffmeister announced that V450 Aquilae was a newly discovered variable star in 1935.[6] Its period is 64.2 days.[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 "V0450 Aql". AAVSO. https://www.aavso.org/vsx/index.php?view=detail.top&oid=1589.
- ↑ McDonald, I.; De Beck, E.; Zijlstra, A. A.; Lagadec, E. (2018). "Pulsation-triggered dust production by asymptotic giant branch stars". Monthly Notices of the Royal Astronomical Society 481 (4): 4984. doi:10.1093/mnras/sty2607. Bibcode: 2018MNRAS.481.4984M.
- ↑ 5.0 5.1 5.2 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.
- ↑ Hoffmeister, Cuno (June 1935). "162 neue Veräderliche". Astronomische Nachrichten 255 (22): 401. doi:10.1002/asna.19352552202. Bibcode: 1935AN....255..401H. https://articles.adsabs.harvard.edu/pdf/1935AN....255..401H. Retrieved 28 October 2024.
 |  |
