29 Vulpeculae information

29 Vulpeculae
	Location of 29 Vulpeculae (circled)
Observation data; Epoch J2000 Equinox J2000
Constellation	Vulpecula
Right ascension	20h 38m 31.32904s
Declination	21° 12′ 04.3763″
Apparent magnitude (V)	4.82
Characteristics
Spectral type	A0V
U−B color index	−0.07
B−V color index	−0.02
Astrometry
Radial velocity (Rv)	−17.10 km/s
Proper motion (μ)	RA: +78.741 mas/yr ; Dec.: −4.572 mas/yr
Parallax (π)	15.6257 ± 0.3374 mas
Distance	209 ± 5 ly ; (64 ± 1 pc)
Absolute magnitude (MV)	0.56
Details
Mass	2.67 M☉
Luminosity	71 L☉
Surface gravity (log g)	4.20 cgs
Temperature	10,507 K
Metallicity [Fe/H]	−0.15 dex
Rotational velocity (v sin i)	52 km/s
Age	254 Myr
Other designations
	29 Vul, BD+20°4658, FK5 1539, HD 196724, HIP 101867, HR 7891, SAO 88944
Database references
SIMBAD	data

29 Vulpeculae is a suspected astrometric binary star system in the northern constellation Vulpecula. It is visible to the naked eye as a faint, white-hued point of light with an apparent visual magnitude of 4.82.^[2] The system lies approximately 209 light years away from the Sun based on parallax,^[1] and is a member of the IC 2391 supercluster.^[8] It is moving closer to the Earth with a heliocentric radial velocity of −17 km/s.^[4]

Radial velocity measurements from High Accuracy Radial Velocity Planet Searcher with an amplitude of 4 km/s indicate that it is a spectroscopic binary of unknown period.^[9] The visible component is an A-type main-sequence star with a stellar classification of A0V,^[3] and has some slight abundance anomalies that resemble a weak Am star.^[10] It is catalogued as a shell star, showing spectral features of a cooler circumstellar jacket of gas,^[11] and may be a proto-shell star.^[10] The star is an estimated 254^[6] million years old with a relatively low projected rotational velocity of 52 km/s.^[3] It has 2.67^[3] times the mass of the Sun and is radiating 71^[3] times the Sun's luminosity from its photosphere at an effective temperature of 10,507 K.^[6]

^ ^a ^b ^c ^d ^e ^f 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 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 ^f ^g ^h Zorec, J.; Royer, F. (2012). "Rotational velocities of A-type stars". Astronomy & Astrophysics. 537: A120. arXiv:1201.2052. Bibcode:2012A&A...537A.120Z. doi:10.1051/0004-6361/201117691. S2CID 55586789. Vizier catalog entry
^ ^a ^b Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. S2CID 119231169.
^ ^a ^b 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. Vizier catalog entry
^ ^a ^b ^c ^d ^e David, Trevor J.; Hillenbrand, Lynne A. (2015). "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal. 804 (2): 146. arXiv:1501.03154. Bibcode:2015ApJ...804..146D. doi:10.1088/0004-637X/804/2/146. S2CID 33401607. Vizier catalog entry
^ "29 Vul". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-03-17.
^ Cite error: The named reference Eggen1995 was invoked but never defined (see the help page).
^ Cite error: The named reference Borgniet2017 was invoked but never defined (see the help page).
^ ^a ^b Cite error: The named reference Adelman1998 was invoked but never defined (see the help page).
^ Cite error: The named reference Hauck2000 was invoked but never defined (see the help page).

[GaiaDR2-1] ^ ^a ^b ^c ^d ^e ^f 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.

[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.

[Zorec2012-3] ^ ^a ^b ^c ^d ^e ^f ^g ^h Zorec, J.; Royer, F. (2012). "Rotational velocities of A-type stars". Astronomy & Astrophysics. 537: A120. arXiv:1201.2052. Bibcode:2012A&A...537A.120Z. doi:10.1051/0004-6361/201117691. S2CID 55586789. Vizier catalog entry

[Gontcharov2006-4] Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. S2CID 119231169.

[XHIP-5] 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. Vizier catalog entry

[David2015-6] David, Trevor J.; Hillenbrand, Lynne A. (2015). "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal. 804 (2): 146. arXiv:1501.03154. Bibcode:2015ApJ...804..146D. doi:10.1088/0004-637X/804/2/146. S2CID 33401607. Vizier catalog entry

[Simbad-7] "29 Vul". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-03-17.

[Eggen1995-8] Cite error: The named reference Eggen1995 was invoked but never defined (see the help page).

[Borgniet2017-9] Cite error: The named reference Borgniet2017 was invoked but never defined (see the help page).

[Adelman1998-10] Cite error: The named reference Adelman1998 was invoked but never defined (see the help page).

[Hauck2000-11] Cite error: The named reference Hauck2000 was invoked but never defined (see the help page).

Observation data Epoch J2000 Equinox J2000
Location of 29 Vulpeculae (circled)
Constellation	Vulpecula
Right ascension	20^h 38^m 31.32904^s^[1]
Declination	21° 12′ 04.3763″^[1]
Apparent magnitude (V)	4.82^[2]
Characteristics
Spectral type	A0V^[3]
U−B color index	−0.07^[2]
B−V color index	−0.02^[2]
Astrometry

Radial velocity (R_v)	−17.10^[4] km/s
Proper motion (μ)	RA: +78.741^[1] mas/yr Dec.: −4.572^[1] mas/yr
Parallax (π)	15.6257 ± 0.3374 mas^[1]
Distance	209 ± 5 ly (64 ± 1 pc)
Absolute magnitude (M_V)	0.56^[5]

Details

Mass	2.67^[3] `M`_☉
Luminosity	71^[3] `L`_☉
Surface gravity (log g)	4.20^[6] cgs
Temperature	10,507^[6] K
Metallicity [Fe/H]	−0.15^[5] dex
Rotational velocity (v sin i)	52^[3] km/s
Age	254^[6] Myr

Other designations
29 Vul, BD+20°4658, FK5 1539, HD 196724, HIP 101867, HR 7891, SAO 88944^[7]
Database references
SIMBAD	data

29 Vulpeculae information

and 29 Related for: 29 Vulpeculae information

29 Vulpeculae

Alpha Vulpeculae

Vulpecula

Serpens

1 Vulpeculae

ER Vulpeculae

HD 189733 b

5 Vulpeculae

30 Vulpeculae

18 Vulpeculae

8 Vulpeculae

32 Vulpeculae

List of stars in Pegasus

HD 192685

NGC 6820 and NGC 6823

List of proper names of stars

List of novae in the Milky Way galaxy

2 Pallas

Dumbbell Nebula

Occultation

Andromeda Galaxy

Brown dwarf

Classical Cepheid variable

IAU designated constellations

AZ Cygni

List of largest stars

Intermediate luminosity optical transient

NGC 6885

CHEOPS