V420 Aurigae
From EverybodyWiki Bios & Wiki
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Auriga |
| Right ascension | 05h 22m 35.23145s[1] |
| Declination | +37° 40′ 33.629″[1] |
| Apparent magnitude (V) | 7.49[2] |
| Characteristics | |
| Spectral type | B0IVpe[3] |
| U−B color index | −0.88[2] |
| B−V color index | +0.16[2] |
| Variable type | High-mass X-ray binary[4] |
| Astrometry | |
| Radial velocity (Rv) | −20.5±4.4[5] km/s |
| Proper motion (μ) | RA: +1.25[1] mas/yr Dec.: -4.38[1] mas/yr |
| Parallax (π) | −0.04 ± 0.72[1] mas |
| Other designations | |
| Database references | |
| SIMBAD | data |
V420 Aurigae is a high-mass star with an inferred compact companion. Closely orbiting each other every 0.8 days, they are a source of X-ray emission.[4]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357. Unknown parameter
|s2cid=ignored (help) - ↑ 2.0 2.1 2.2 Lutz, J. H.; Lutz, T. E. (June 1972), "UBV and Hγ observations of early-type field stars", Astronomical Journal, 77: 376, Bibcode:1972AJ.....77..376L, doi:10.1086/111296.
- ↑ Hiltner, W. A. (October 1956), "Photometric, Polarization, and Spectrographic Observations of O and B Stars.", Astrophysical Journal Supplement, 2: 389, Bibcode:1956ApJS....2..389H, doi:10.1086/190029.
- ↑ 4.0 4.1 Percy, John R.; et al. (February 2004), "Short-Period Variable Be Stars Discovered or Confirmed through Self-Correlation Analysis of Hipparcos Epoch Photometry", The Publications of the Astronomical Society of the Pacific, 116 (816): 178–183, Bibcode:2004PASP..116..178P, doi:10.1086/382246.
- ↑ Gontcharov, G. A. (November 2006), "Pulkovo Compilation of Radial Velocities for 35,495 Hipparcos stars in a common system", Astronomy Letters, 32 (11): 759–771, arXiv:1606.08053, Bibcode:2006AstL...32..759G, doi:10.1134/S1063773706110065. Unknown parameter
|s2cid=ignored (help)
External links
Coordinates: 
05h 22m 35.2305s, +37° 40′ 33.629″
| Stub icon | This binary or multiple star system–related article is a stub. You can help EverybodyWiki by expanding it. |
 | This variable star–related article is a stub. You can help EverybodyWiki by expanding it. |
This article "V420 Aurigae" is from Wikipedia. The list of its authors can be seen in its historical and/or the page Edithistory:V420 Aurigae. Articles copied from Draft Namespace on Wikipedia could be seen on the Draft Namespace of Wikipedia and not main one.
|
This page exists already on Wikipedia. |
