23 Vulpeculae

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Template:Short description

23 Vulpeculae
Template:Location mark
Location of 23 Vulpeculae (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Vulpecula
Right ascension Template:RA[1]
Declination Template:DEC[1]
Apparent magnitude (V) 4.52[2]
Characteristics
Spectral type K3- III Fe-1[3]
U−B Template:Engvar +1.11[2]
B−V Template:Engvar +1.26[2]
Astrometry
Radial velocity (Rv)+1.47[4] km/s
Proper motion (μ) RA: Script error: No such module "val".[1] mas/yr
Dec.: Script error: No such module "val".[1] mas/yr
Parallax (π)9.9642±0.1698 mas[1]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)−0.58[5]
Orbit[6]
Primary23 Vul Aa
Companion23 Vul Ab
Period (P)25.33 yr
Semi-major axis (a)0.111″
Eccentricity (e)0.400
Inclination (i)71.5°
Longitude of the node (Ω)97.5°
Periastron epoch (T)2009.56
Argument of periastron (ω)
(secondary)		293.8°
Details
23 Vul A
Mass2.4[7] Template:Solar mass
RadiusScript error: No such module "val".[8] Template:Solar radius
Luminosity288[8] Template:Solar luminosity
Surface gravity (log g)0.89[9] cgs
TemperatureScript error: No such module "val".[8] K
Metallicity [Fe/H]Script error: No such module "val".[8] dex
Rotational velocity (v sin i)3.7[10] km/s
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[11]
Database references
SIMBADdata

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23 Vulpeculae is a triple star system[12] in the northern constellation of Vulpecula. It is visible to the naked eye as a faint, orange-hued star with an apparent visual magnitude of 4.52[2] and it is located approximately 327 light years away from the Sun based on parallax.[1] The system is moving further from the Earth with a heliocentric radial velocity of +1.47 km/s.[4]

Component A forms a binary system with an orbital period of 25.33 years, an eccentricity of 0.40, and a semimajor axis of Script error: No such module "val"..[6] The 4.80 magnitude member of this pair, component Aa is an aging giant star with a stellar classification of K3- III Fe-1,[3] where the suffix indicates an underabundance of iron in the spectrum. This star has 2.4[7] times the mass of the Sun and is radiating 288 times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4,413 K.[8] Its companion, component Ab, has magnitude 6.5.[6] The tertiary member, component B, has a separation of 0.26" and a magnitude of 6.94.[7][13][12]

References

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  1. ↑ a b c d e f Template:Cite Gaia EDR3
  2. ↑ a b c d Script error: No such module "Citation/CS1".
  3. ↑ a b Script error: No such module "Citation/CS1".
  4. ↑ a b Script error: No such module "Citation/CS1".
  5. ↑ Script error: No such module "Citation/CS1". Vizier catalog entry
  6. ↑ a b c Script error: No such module "citation/CS1". Contains data from Script error: No such module "citation/CS1".
  7. ↑ a b c Script error: No such module "Citation/CS1". Vizier catalog entry
  8. ↑ a b c d e Script error: No such module "Citation/CS1".
  9. ↑ Script error: No such module "Citation/CS1".
  10. ↑ Script error: No such module "Citation/CS1". Vizier catalog entry
  11. ↑ Template:Cite simbad
  12. ↑ a b Script error: No such module "Citation/CS1". Vizier catalog entry
  13. ↑ Script error: No such module "Citation/CS1". Vizier catalog entry

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External links

Template:Stars of Vulpecula

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