Iota1 Cygni

Iota1 Cygni
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[1] mas
Distance351 ± 9 ly
(108 ± 3 pc)
Absolute magnitude (MV)0.59 [5]
Other designations
7 Cygni, BD+52° 2434, HIP 95656, HR 7408, HD 183534, SAO 31673 [2]
Database references
SIMBADdata

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

  1. 1 2 3 4 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. Bibcode:2007A&A...474..653V. arXiv:0708.1752Freely accessible. doi:10.1051/0004-6361:20078357. Vizier catalog entry
  2. 1 2 3 4 5 6 "* iot01 Cyg". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2016-04-10.
  3. 1 2 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
  4. Evans, D. S. (June 20–24, 1966), "The Revision of the General Catalogue of Radial Velocities", in Batten, Alan Henry; Heard, John Frederick, Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30, University of Toronto: International Astronomical Union, Bibcode:1967IAUS...30...57E
  5. 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.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.