Iota1 Cygni: Difference between revisions
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{{DISPLAYTITLE:Iota<sup>1</sup> Cygni}} |
{{DISPLAYTITLE:Iota<sup>1</sup> Cygni}} |
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{{for2|other stars with this [[Bayer designation]]|[[Iota Cygni|ι Cygni]]}} |
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| name = Iota<sup>1</sup> Cygni |
| name = Iota<sup>1</sup> Cygni |
Revision as of 19:14, 2 February 2017
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Cygnus |
Right ascension | 19h 27m 25.95887s [1] |
Declination | 52° 19′ 13.5737″ [1] |
Apparent magnitude (V) | 5.75 [2] |
Characteristics | |
Spectral type | A1V [3] |
B−V color index | +0.00 [2] |
Astrometry | |
Radial velocity (Rv) | +1.90[4] km/s |
Proper motion (μ) | RA: -12.26[2] mas/yr Dec.: -26.95[2] mas/yr |
Parallax (π) | 9.30 ± 0.23 mas[1] |
Distance | 351 ± 9 ly (108 ± 3 pc) |
Absolute magnitude (MV) | 0.59 [5] |
Other designations | |
Database references | |
SIMBAD | data |
Iota1 Cygni (ι1 Cyg) is a class A1V[3] (white main-sequence) star in the constellation Cygnus. Its apparent magnitude is 5.75[2] and it is approximately 351 light years away based on parallax.[1]
References
- ^ a b c d 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
- ^ a b c d e f "Iota1 Cygni". SIMBAD Astronomical Database. Retrieved 2016-04-10.
- ^ a b Jaschek, M. (July 1978), "Catalogue of selected spectral types in the MK system", Bulletin d'Information du Centre de Donnees Stellaires, 15 (121), Bibcode:1978BICDS..15..121J Vizier catalog entry
- ^ Evans, D. S. (June 20–24, 1966), "The Revision of the General Catalogue of Radial Velocities", in Batten, Alan Henry; Heard, John Frederick (eds.), Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30, University of Toronto: International Astronomical Union, Bibcode:1967IAUS...30...57E
- ^ 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.