23 Vulpeculae

23 Vulpeculae
	Location of 23 Vulpeculae (circled)
Observation data; Epoch J2000 Equinox J2000
Constellation	Vulpecula
Right ascension	20h 15m 46.13481s
Declination	27° 48′ 51.2787″
Apparent magnitude (V)	4.52
Characteristics
Spectral type	K3III Fe-1
U−B color index	+1.11
B−V color index	+1.26
Astrometry
Radial velocity (Rv)	+1.47 km/s
Proper motion (μ)	RA: -34.27 mas/yr ; Dec.: +6.41 mas/yr
Parallax (π)	9.63 ± 0.46 mas
Distance	340 ± 20 ly ; (104 ± 5 pc)
Absolute magnitude (MV)	-0.58
Details
Mass	2.4 M☉
Luminosity	146 L☉
Surface gravity (log g)	0.89 cgs
Temperature	4,429 K
Metallicity [Fe/H]	+0.03 dex
Rotational velocity (v sin i)	3.7 km/s
Other designations
	BD+27° 3666, CCDM J20158+2749ABC, GC 28152, HIP 99874, HR 7744, HD 192806, SAO 88428, WDS J20158+2749AB
Database references
SIMBAD	data

23 Vulpeculae is a class K3III^[3] (orange giant) star in a triple star system in the constellation Vulpecula. Its apparent magnitude is 4.52^[2] and it is approximately 339 light years away based on parallax.^[1] It has two reported companions; Ab has a separation of 0.11", a magnitude of 6.5, and a period of about 25 years, while B has a separation of 0.26" and a magnitude of 6.94.^[5]^[9]^[10]

References

^ ^a ^b ^c ^d ^e ^f Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
^ ^a ^b ^c ^d Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237. Bibcode:2002yCat.2237....0D.
^ ^a ^b ^c ^d ^e Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. Vizier catalog entry
^ Famaey, B.; Jorissen, A.; Luri, X.; Mayor, M.; Udry, S.; Dejonghe, H.; Turon, C. (2005). "Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data". Astronomy & Astrophysics. 430: 165. arXiv:astro-ph/0409579. Bibcode:2005A&A...430..165F. doi:10.1051/0004-6361:20041272.
^ ^a ^b Malkov, O. Yu.; Tamazian, V. S.; Docobo, J. A.; Chulkov, D. A. (2012). "Dynamical masses of a selected sample of orbital binaries". Astronomy & Astrophysics. 546: A69. Bibcode:2012A&A...546A..69M. doi:10.1051/0004-6361/201219774. Vizier catalog entry
^ Soubiran, Caroline; Le Campion, Jean-François; Brouillet, Nathalie; Chemin, Laurent (2016). "The PASTEL catalogue: 2016 version". Astronomy & Astrophysics. 591: A118. arXiv:1605.07384. Bibcode:2016A&A...591A.118S. doi:10.1051/0004-6361/201628497.
^ McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012). "Fundamental parameters and infrared excesses of Hipparcos stars". Monthly Notices of the Royal Astronomical Society. 427: 343. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x. Vizier catalog entry
^ De Medeiros, J. R.; Mayor, M. (1999). "A catalog of rotational and radial velocities for evolved stars". Astronomy and Astrophysics Supplement Series. 139 (3): 433. arXiv:astro-ph/0608248. Bibcode:1999A&AS..139..433D. doi:10.1051/aas:1999401. Vizier catalog entry
^ Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (2001). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal. 122 (6): 3466. Bibcode:2001AJ....122.3466M. doi:10.1086/323920. Vizier catalog entry
^ Eggleton, P. P.; Tokovinin, A. A. (2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society. 389 (2): 869. arXiv:0806.2878. Bibcode:2008MNRAS.389..869E. doi:10.1111/j.1365-2966.2008.13596.x. Vizier catalog entry

External links

23 Vulpeculae on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images

This giant-star-related article is a stub. You can help Wikipedia by expanding it.

This binary or multiple star system–related article is a stub. You can help Wikipedia by expanding it.

[vanLeeuwen2007-1] ^ ^a ^b ^c ^d ^e ^f Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry

[Ducati2002-2] Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237. Bibcode:2002yCat.2237....0D.

[XHIP-3] Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. Vizier catalog entry

[Famaey2005-4] Famaey, B.; Jorissen, A.; Luri, X.; Mayor, M.; Udry, S.; Dejonghe, H.; Turon, C. (2005). "Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data". Astronomy & Astrophysics. 430: 165. arXiv:astro-ph/0409579. Bibcode:2005A&A...430..165F. doi:10.1051/0004-6361:20041272.

[Malkov2012-5] Malkov, O. Yu.; Tamazian, V. S.; Docobo, J. A.; Chulkov, D. A. (2012). "Dynamical masses of a selected sample of orbital binaries". Astronomy & Astrophysics. 546: A69. Bibcode:2012A&A...546A..69M. doi:10.1051/0004-6361/201219774. Vizier catalog entry

[Soubiran2016-6] Soubiran, Caroline; Le Campion, Jean-François; Brouillet, Nathalie; Chemin, Laurent (2016). "The PASTEL catalogue: 2016 version". Astronomy & Astrophysics. 591: A118. arXiv:1605.07384. Bibcode:2016A&A...591A.118S. doi:10.1051/0004-6361/201628497.

[McDonald2012-7] McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012). "Fundamental parameters and infrared excesses of Hipparcos stars". Monthly Notices of the Royal Astronomical Society. 427: 343. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x. Vizier catalog entry

[deMedeiros1999-8] De Medeiros, J. R.; Mayor, M. (1999). "A catalog of rotational and radial velocities for evolved stars". Astronomy and Astrophysics Supplement Series. 139 (3): 433. arXiv:astro-ph/0608248. Bibcode:1999A&AS..139..433D. doi:10.1051/aas:1999401. Vizier catalog entry

[WDS-9] Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (2001). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal. 122 (6): 3466. Bibcode:2001AJ....122.3466M. doi:10.1086/323920. Vizier catalog entry

[Eggleton2008-10] Eggleton, P. P.; Tokovinin, A. A. (2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society. 389 (2): 869. arXiv:0806.2878. Bibcode:2008MNRAS.389..869E. doi:10.1111/j.1365-2966.2008.13596.x. Vizier catalog entry

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Observation data Epoch J2000 Equinox J2000
Location of 23 Vulpeculae (circled)
Constellation	Vulpecula
Right ascension	20^h 15^m 46.13481^s^[1]
Declination	27° 48′ 51.2787″^[1]
Apparent magnitude (V)	4.52^[2]
Characteristics
Spectral type	K3III Fe-1^[3]
U−B color index	+1.11^[2]
B−V color index	+1.26^[2]
Astrometry

Radial velocity (R_v)	+1.47^[4] km/s
Proper motion (μ)	RA: -34.27^[1] mas/yr Dec.: +6.41^[1] mas/yr
Parallax (π)	9.63 ± 0.46 mas^[1]
Distance	340 ± 20 ly (104 ± 5 pc)
Absolute magnitude (M_V)	-0.58^[3]

Details

Mass	2.4^[5] `M`_☉
Luminosity	146 ^[3] `L`_☉
Surface gravity (log g)	0.89^[6] cgs
Temperature	4,429^[7] K
Metallicity [Fe/H]	+0.03^[3] dex
Rotational velocity (v sin i)	3.7^[8] km/s

Other designations
BD+27° 3666, CCDM J20158+2749ABC, GC 28152, HIP 99874, HR 7744, HD 192806, SAO 88428, WDS J20158+2749AB
Database references
SIMBAD	data