Delta Antliae
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| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Antlia |
| Right ascension | 10h 29m 35.37844s}[1] |
| Declination | –30° 36′ 25.4413″[1] |
| Apparent magnitude (V) | +5.55[2] |
| Characteristics | |
| Spectral type | B9.5/A0V |
| U−B color index | –0.18[2] |
| B−V color index | –0.04[2] |
| Astrometry | |
| Radial velocity (Rv) | +14[3] km/s |
| Proper motion (μ) | RA: –29.47[1] mas/yr Dec.: +1.66[1] mas/yr |
| Parallax (π) | 6.78 ± 0.74[1] mas |
| Distance | approx. 480 ly (approx. 150 pc) |
| Absolute magnitude (MV) | –0.37[4] |
| Details | |
| Mass | 3.35 ± 0.15[4] M☉ |
| Luminosity | 200[4] L☉ |
| Temperature | 11,117[4] K |
| Rotational velocity (v sin i) | 27[5] km/s |
| Age | 214[4] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
Delta Antliae (δ Ant, δ Antliae) is a binary star[4] system in the constellation Antlia. It is approximately 480 light years from Earth.
This is a double-lined spectroscopic binary star system with a combined apparent magnitude of +5.57. The primary component is classified as a B-type main sequence star. It has a visual companion located 11 arcseconds away.
[edit] References
- ^ a b c d e van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics 474 (2): 653–664, Bibcode 2007A&A...474..653V, doi:10.1051/0004-6361:20078357
- ^ a b c Hurly, P. R. (1975), "Combined-light UBV Photometry of 103 Bright Southern Visual Doubles", Monthly Notes of the Astronomical Society of Southern Africa 34: 7, Bibcode 1975MNSSA..34....7H
- ^ Evans, D. S. (June 20–24, 1966), Batten, Alan Henry; Heard, John Frederick, eds., The Revision of the General Catalogue of Radial Velocities, University of Toronto: International Astronomical Union, Bibcode 1967IAUS...30...57E
- ^ a b c d e f Hubrig, S. et al. (June 2001), "Search for low-mass PMS companions around X-ray selected late B stars", Astronomy and Astrophysics 372: 152-164, arXiv:astro-ph/0103201, Bibcode 2001A&A...372..152H, doi:10.1051/0004-6361:20010452
- ^ Royer, F.; Zorec, J.; Gómez, A. E. (February 2007), "Rotational velocities of A-type stars. III. Velocity distributions", Astronomy and Astrophysics 463 (2): 671–682, arXiv:astro-ph/0610785, Bibcode 2007A&A...463..671R, doi:10.1051/0004-6361:20065224
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