Mu Aquilae

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Template:Short description

Mu Aquilae
Template:Location mark
Location of μ Aquilae (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Aquila
Right ascension Template:RA[1]
Declination Template:DEC[1]
Apparent magnitude (V) 4.45[2]
Characteristics
Evolutionary stage red clump[3]
Spectral type K3-IIIb Fe0.5[4]
U−B Template:Engvar +1.24[2]
B−V Template:Engvar +1.176[5]
R−I Template:Engvar 0.61
Astrometry
Radial velocity (Rv)−24.73±0.13[6] km/s
Proper motion (μ) RA: +213.280 mas/yr[1]
Dec.: −156.953 mas/yr[1]
Parallax (π)29.4091±0.1441 mas[1]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)1.80[6]
Details[7]
MassScript error: No such module "val". Template:Solar mass
RadiusScript error: No such module "val".[8] Template:Solar radius
Luminosity24.5 Template:Solar luminosity
Surface gravity (log g)Script error: No such module "val". cgs
TemperatureScript error: No such module "val". K
Metallicity [Fe/H]0.16 dex
Rotational velocity (v sin i)0.0[5] km/s
AgeScript error: No such module "val". Gyr
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[9]
Database references
SIMBADdata

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Mu Aquilae is a single[10] star in the equatorial constellation of Aquila. Its name is a Bayer designation that is Latinized from μ Aquilae, and abbreviated Mu Aql or μ Aql. With an apparent visual magnitude of 4.45,[2] it is visible to the naked eye. The measured annual parallax shift of this star is Script error: No such module "val".,[1] which gives a distance estimate of Script error: No such module "convert". from Earth. It is drifting closer with a radial velocity of −25 km/s,[6] and displays a relatively high proper motion, traversing the celestial sphere at the rate of Script error: No such module "val". per year.[11]

The stellar classification of Mu Aquilae is K3-IIIb Fe0.5,[4] indicating that this is an evolved giant star with a mild overabundance of iron appearing in its spectrum. It belongs to a sub-category of giants called the red clump, which means it is generating energy through the fusion of helium at its core.[3] Compared to the Sun, it has 116% of the mass and has expanded to 7.7 times the size. This inflated outer envelope has an effective temperature of 4,567 K and is radiating 24.5 times the Sun's luminosity.[7] At this heat, Mu Aquilae glows with the orange hue of a K-type star.[12] It is roughly seven billion years old.[7]

References

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  1. ↑ a b c d e Template:Cite DR3
  2. ↑ a b c 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. ↑ a b Script error: No such module "citation/CS1".
  6. ↑ a b c Script error: No such module "citation/CS1".
  7. ↑ a b c Script error: No such module "citation/CS1".
  8. ↑ Script error: No such module "citation/CS1".
  9. ↑ Template:Cite simbad
  10. ↑ Script error: No such module "citation/CS1".
  11. ↑ Script error: No such module "citation/CS1".
  12. ↑ Script error: No such module "citation/CS1".

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External links

Template:Stars of Aquila

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