NO Apodis
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Apus |
| Right ascension | 17h 31m 27.465s[1] |
| Declination | −80° 51′ 32.88″[1] |
| Apparent magnitude (V) | 5.71-5.95[2] |
| Characteristics | |
| Spectral type | M3III[2] |
| U−B color index | 1.81 |
| B−V color index | 1.67 |
| Variable type | Semiregular pulsating Star |
| Astrometry | |
| Radial velocity (Rv) | -18.3 km/s |
| Proper motion (μ) | RA: -2.28 ± 0.22[1] mas/yr Dec.: -42.60 ± 0.30[1] mas/yr |
| Parallax (π) | 3.69 ± 0.28[1] mas |
| Distance | 880 ± 70 ly (270 ± 20 pc) |
| Other designations | |
| Database references | |
| SIMBAD | data |
NO Apodis (HD 156513) is semi-regular pulsating star located in the far southern constellation Apus. It varies between magnitudes 5.71 and 5.95,[2] its pulsations of periods 26.2 and 26.6 days respectively.[3] Located around 883 light-years distant, it shines with a luminosity approximately 2059 times that of the Sun and has a surface temperature of 3568 K.[4]
References
- 1 2 3 4 5 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–64. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.Vizier catalog entry
- 1 2 3 Watson, Christopher (25 August 2009). "NO Apodis". The International Variable Star Index. American Association of Variable Star Observers. Retrieved 31 March 2015.
- ↑ Tabur, V.; Bedding, T.R.; Kiss, L.L.; Moon, T.T.; Szeidl, B.; Kjeldsen, H. (2009). "Long-term photometry and periods for 261 nearby pulsating M giants". Monthly Notices of the Royal Astronomical Society 400 (4): 1945–61. arXiv:0908.3228. Bibcode:2009MNRAS.400.1945T. doi:10.1111/j.1365-2966.2009.15588.x.
- ↑ 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. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x.
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