| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Vulpecula |
| Right ascension | 20h 54m 33.63782s [1] |
| Declination | +28° 03′ 27.4632″ [1] |
| Apparent magnitude (V) | 5.03 [2] (4.99–5.06) [3] |
| Characteristics | |
| Evolutionary stage | giant [4] |
| Spectral type | K4 III [5] |
| B−V color index | 1.480 [4] |
| Variable type | suspected [3] |
| Astrometry | |
| Radial velocity (Rv) | +5.7±0.6 [2] km/s |
| Proper motion (μ) |
RA: −2.525±0.209
[1]
mas/
yr Dec.: −2.277±0.197 [1] mas/ yr |
| Parallax (π) | 5.3885 ± 0.1260 mas [1] |
| Distance | 610 ± 10
ly (186 ± 4 pc) |
| Absolute magnitude (MV) | −1.76 [4] |
| Details | |
| Radius | 54.29+1.69 −3.42 [1] R☉ |
| Luminosity | 708.4±19.5 [1] L☉ |
| Surface gravity (log g) | 1.74 [6] cgs |
| Temperature | 4,041+134 −61 [1] K |
| Metallicity [Fe/H] | −0.16 [6] dex |
| Rotational velocity (v sin i) | 8.1 [4] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
32 Vulpeculae is a single [8] star located around 610 [1] light years away from the Sun in the northern constellation Vulpecula, [7] a few degrees south of the border with Cygnus. It is visible to the naked eye as a faint, orange-hued star with a typical apparent visual magnitude of 5.03. [2] This object is drifting further away from the Earth with a heliocentric radial velocity of +6 km/s. [2]
This is an aging red giant [4] star with a stellar classification of K4 III, [5] having exhausted the supply of hydrogen at its core then expanded to 54 [1] times the Sun's radius. It is a suspected variable of unknown type, with a visual magnitude that has been measured ranging from 4.99 down to 5.06. [3] The star is radiating 708 [1] times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 4,041 K. [1]
- ^ a b c d e f g h i j k l Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv: 1804.09365. Bibcode: 2018A&A...616A...1G. doi: 10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- ^ a b c d 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, S2CID 119257644.
- ^ a b c Samus, N. N.; et al. (2017), "General Catalogue of Variable Stars", Astronomy Reports, 5.1, 61 (1): 80–88, Bibcode: 2017ARep...61...80S, doi: 10.1134/S1063772917010085, S2CID 125853869.
- ^ a b c d e Ryon, Jenna; et al. (August 2009), "Comparing the Ca ii H and K Emission Lines in Red Giant Stars", Publications of the Astronomical Society of the Pacific, 121 (882): 842, arXiv: 0907.3346, Bibcode: 2009PASP..121..842R, doi: 10.1086/605456, S2CID 17821279.
- ^ a b Roman, Nancy G. (July 1952), "The Spectra of the Bright Stars of Types F5-K5", Astrophysical Journal, 116: 122, Bibcode: 1952ApJ...116..122R, doi: 10.1086/145598.
- ^ a b McWilliam, Andrew (December 1990), "High-resolution spectroscopic survey of 671 GK giants. I - Stellar atmosphere parameters and abundances", Astrophysical Journal Supplement Series, 74: 1075–1128, Bibcode: 1990ApJS...74.1075M, doi: 10.1086/191527.
- ^ a b "32 Vul". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2018-11-17.
- ^ 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, S2CID 14878976.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Vulpecula |
| Right ascension | 20h 54m 33.63782s [1] |
| Declination | +28° 03′ 27.4632″ [1] |
| Apparent magnitude (V) | 5.03 [2] (4.99–5.06) [3] |
| Characteristics | |
| Evolutionary stage | giant [4] |
| Spectral type | K4 III [5] |
| B−V color index | 1.480 [4] |
| Variable type | suspected [3] |
| Astrometry | |
| Radial velocity (Rv) | +5.7±0.6 [2] km/s |
| Proper motion (μ) |
RA: −2.525±0.209
[1]
mas/
yr Dec.: −2.277±0.197 [1] mas/ yr |
| Parallax (π) | 5.3885 ± 0.1260 mas [1] |
| Distance | 610 ± 10
ly (186 ± 4 pc) |
| Absolute magnitude (MV) | −1.76 [4] |
| Details | |
| Radius | 54.29+1.69 −3.42 [1] R☉ |
| Luminosity | 708.4±19.5 [1] L☉ |
| Surface gravity (log g) | 1.74 [6] cgs |
| Temperature | 4,041+134 −61 [1] K |
| Metallicity [Fe/H] | −0.16 [6] dex |
| Rotational velocity (v sin i) | 8.1 [4] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
32 Vulpeculae is a single [8] star located around 610 [1] light years away from the Sun in the northern constellation Vulpecula, [7] a few degrees south of the border with Cygnus. It is visible to the naked eye as a faint, orange-hued star with a typical apparent visual magnitude of 5.03. [2] This object is drifting further away from the Earth with a heliocentric radial velocity of +6 km/s. [2]
This is an aging red giant [4] star with a stellar classification of K4 III, [5] having exhausted the supply of hydrogen at its core then expanded to 54 [1] times the Sun's radius. It is a suspected variable of unknown type, with a visual magnitude that has been measured ranging from 4.99 down to 5.06. [3] The star is radiating 708 [1] times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 4,041 K. [1]
- ^ a b c d e f g h i j k l Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv: 1804.09365. Bibcode: 2018A&A...616A...1G. doi: 10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- ^ a b c d 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, S2CID 119257644.
- ^ a b c Samus, N. N.; et al. (2017), "General Catalogue of Variable Stars", Astronomy Reports, 5.1, 61 (1): 80–88, Bibcode: 2017ARep...61...80S, doi: 10.1134/S1063772917010085, S2CID 125853869.
- ^ a b c d e Ryon, Jenna; et al. (August 2009), "Comparing the Ca ii H and K Emission Lines in Red Giant Stars", Publications of the Astronomical Society of the Pacific, 121 (882): 842, arXiv: 0907.3346, Bibcode: 2009PASP..121..842R, doi: 10.1086/605456, S2CID 17821279.
- ^ a b Roman, Nancy G. (July 1952), "The Spectra of the Bright Stars of Types F5-K5", Astrophysical Journal, 116: 122, Bibcode: 1952ApJ...116..122R, doi: 10.1086/145598.
- ^ a b McWilliam, Andrew (December 1990), "High-resolution spectroscopic survey of 671 GK giants. I - Stellar atmosphere parameters and abundances", Astrophysical Journal Supplement Series, 74: 1075–1128, Bibcode: 1990ApJS...74.1075M, doi: 10.1086/191527.
- ^ a b "32 Vul". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2018-11-17.
- ^ 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, S2CID 14878976.