Astronomy:V Antliae
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Short description: Star in the constellation Antlia
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Antlia[2] |
| Right ascension | 10h 21m 09.11141s[3] |
| Declination | −34° 47′ 18.7444″[3] |
| Apparent magnitude (V) | 8.2 - 14.0[4] |
| Characteristics | |
| Evolutionary stage | AGB[5] |
| Spectral type | M7IIIe[4] |
| Variable type | Mira[4] |
| Astrometry | |
| Radial velocity (Rv) | 2.00 km/s |
| Proper motion (μ) | RA: −2.560[3] mas/yr Dec.: +7.487[3] mas/yr |
| Parallax (π) | 1.1397 ± 0.0687[3] mas |
| Distance | 2,900 ± 200 ly (880 ± 50 pc) |
| Details | |
| Mass | 3.2[6] M☉ |
| Radius | 620[7] R☉ |
| Luminosity | 24,000[8] L☉ |
| Surface gravity (log g) | 1.25[6] cgs |
| Temperature | 3,293[9] K |
| Other designations | |
| Database references | |
| SIMBAD | data |
V Antliae (V Ant) is a Mira variable star in the constellation Antlia. It varies in brightness between magnitudes 8.2 and 14.0 with a period of 303 days.[4] Even at its brightest, it is far too faint to be seen with the naked eye.
V Antliae's variability was discovered by examining Harvard College Observatory photographic plates, and was announced by Henrietta S. Leavitt and Edward C. Pickering in 1913.[10]
1612 MHz OH maser emission was first detected from this star in 1973.[11] The star's water vapor emission line at 22 GHz was first observed at Haystack Observatory in 1973.[12]
References
- ↑ "Download Data". AAVSO. https://www.aavso.org/data-download.
- ↑ Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters 38 (5): 331. doi:10.1134/S1063773712050015. Bibcode: 2012AstL...38..331A.
- ↑ 3.0 3.1 3.2 3.3 3.4 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.
- ↑ 4.0 4.1 4.2 4.3 Samus, N. N. et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S 1: B/GCVS. Bibcode: 2009yCat....102025S.
- ↑ ((Montez, Rodolfo, Jr.)); Ramstedt, Sofia; Kastner, Joel H.; Vlemmings, Wouter; Sanchez, Enmanuel (2017). "A Catalog of GALEX Ultraviolet Emission from Asymptotic Giant Branch Stars". The Astrophysical Journal 841 (1): 33. doi:10.3847/1538-4357/aa704d. Bibcode: 2017ApJ...841...33M.
- ↑ 6.0 6.1 Khalatyan, A.; Anders, F.; Chiappini, C.; Queiroz, A. B. A.; Nepal, S.; Dal Ponte, M.; Jordi, C.; Guiglion, G. et al. (2024). "Transferring spectroscopic stellar labels to 217 million Gaia DR3 XP stars with SHBoost". Astronomy and Astrophysics 691: A98. doi:10.1051/0004-6361/202451427. Bibcode: 2024A&A...691A..98K.
- ↑ Kervella, Pierre; Arenou, Frédéric; Thévenin, Frédéric (2022). "Stellar and substellar companions from Gaia EDR3. Proper-motion anomaly and resolved common proper-motion pairs". Astronomy and Astrophysics 657. doi:10.1051/0004-6361/202142146. Bibcode: 2022A&A...657A...7K.
- ↑ Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
- ↑ Tonry, J. L.; Denneau, L.; Flewelling, H.; Heinze, A. N.; Onken, C. A.; Smartt, S. J.; Stalder, B.; Weiland, H. J. et al. (2018). "The ATLAS All-Sky Stellar Reference Catalog". The Astrophysical Journal 867 (2): 105. doi:10.3847/1538-4357/aae386. Bibcode: 2018ApJ...867..105T.
- ↑ Leavitt, Henrietta S.; Pickering, Edward C. (May 1913). "25 New Variable Stars, Principally in Harvard Maps 39 and 45". Harvard College Observatory Circular 179: 1–4. Bibcode: 1913HarCi.179....1L.
- ↑ Dickinson, Dale F.; Chaisson, Eric J. (May 1973). "Long-Period Variables: Correlation of Stellar Period with OH Radial-Velocity Pattern". Astrophysical Journal 181: L13S-L138. doi:10.1086/181200. Bibcode: 1973ApJ...181L.135D.
- ↑ Dickinson, D. F. (March 1976). "Water emission from infrared stars". Astrophysical Journal Supplement Series 30: 259–271. doi:10.1086/190362. Bibcode: 1976ApJS...30..259D.
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