Zeta Serpentis
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Serpens |
Right ascension | 18h 00m 29.0s[1] [2] |
Declination | −03° 41′ 25″[1] [2] |
Apparent magnitude (V) | 4.63 [3] |
Characteristics | |
Spectral type | F2V [4] |
B−V color index | +0.36 [3] |
Astrometry | |
Radial velocity (Rv) | -50.70[5] km/s |
Proper motion (μ) | RA: +155.51[2] mas/yr Dec.: -44.43[2] mas/yr |
Parallax (π) | 42.46 ± 0.34[2] mas |
Distance | 76.8 ± 0.6 ly (23.6 ± 0.2 pc) |
Absolute magnitude (MV) | 2.77 [6] |
Other designations | |
Database references | |
SIMBAD | data |
Zeta Serpentis (ζ Ser, ζ Serpentis) is a star in the constellation Serpens.
Zeta Serpentis is a yellow-white F-type main sequence dwarf with an apparent magnitude of +4.63.[3] It is approximately 76.8 light years from Earth.[2] This star has nearly double the radius of the Sun and is radiating 6.3 times the Sun's luminosity from its outer atmosphere at an effective temperature of 6,529 K.[1]
References
- 1 2 3 Boyajian, Tabetha S.; et al. (February 2012), "Stellar Diameters and Temperatures. I. Main-sequence A, F, and G Stars", The Astrophysical Journal, 746 (1): 101, arXiv:1112.3316, Bibcode:2012ApJ...746..101B, doi:10.1088/0004-637X/746/1/101. See Table 10.
- 1 2 3 4 5 6 van Leeuwen, F. (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. Vizier catalog entry
- 1 2 3 4 "Zeta Serpentis". SIMBAD Astronomical Database. Retrieved 2015-10-17.
- ↑ Gray, R. O.; et al. (October 2003), "Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 Parsecs: The Northern Sample. I.", The Astronomical Journal, 126 (4): 2048–2059, arXiv:astro-ph/0308182, Bibcode:2003AJ....126.2048G, doi:10.1086/378365
- ↑ 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. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.
- ↑ Absolute magnitude calculated as , where is the star's absolute magnitude, is the star's apparent magnitude, and is the star's measured parallax in arcseconds.
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