Iota1 Cygni: Difference between revisions

Iota¹ Cygni
Observation data; Epoch J2000 Equinox J2000
Constellation	Cygnus
Right ascension	19h 27m 25.95887s
Declination	52° 19′ 13.5737″
Apparent magnitude (V)	5.75
Characteristics
Spectral type	A1V
B−V color index	+0.00
Astrometry
Radial velocity (Rv)	+1.90 km/s
Proper motion (μ)	RA: -12.26 mas/yr ; Dec.: -26.95 mas/yr
Parallax (π)	9.30 ± 0.23 mas
Distance	351 ± 9 ly ; (108 ± 3 pc)
Absolute magnitude (MV)	0.59
Other designations
	7 Cygni, GC 26893, HIP 95656, HR 7408, HD 183534, SAO 31673
Database references
SIMBAD	data

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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 $M=m+5(1+\log _{10}{p})\!\,$ , where $M$ is the star's absolute magnitude, $m$ is the star's apparent magnitude, and $p$ is the star's measured parallax in arcseconds.

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[vanLeeuwen2007-1] 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

[SIMBAD-2] ^ ^a ^b ^c ^d ^e ^f "Iota1 Cygni". SIMBAD Astronomical Database. Retrieved 2016-04-10.

[Jaschek1978-3] 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

[Evans1967-4] 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

[5] Absolute magnitude calculated as $M=m+5(1+\log _{10}{p})\!\,$ , where $M$ is the star's absolute magnitude, $m$ is the star's apparent magnitude, and $p$ is the star's measured parallax in arcseconds.

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@@ Line 1: / Line 1: @@
 {{DISPLAYTITLE:Iota<sup>1</sup> Cygni}}
+{{for2|other stars with this [[Bayer designation]]|[[Iota Cygni|ι Cygni]]}}
 {{Starbox begin
 | name = Iota<sup>1</sup> Cygni

Observation data Epoch J2000 Equinox J2000
Constellation	Cygnus
Right ascension	19^h 27^m 25.95887^s ^[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 (R_v)	+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 (M_V)	0.59 ^[5]

Other designations
7 Cygni, GC 26893, HIP 95656, HR 7408, HD 183534, SAO 31673 ^[2]
Database references
SIMBAD	data