58 Aquilae

58 Aquilae
Observation data
Epoch J2000      Equinox J2000
Constellation Aquila
Right ascension 19h 54m 44.79543s[1]
Declination +00° 16′ 25.0534″[1]
Apparent magnitude (V) 5.60[2]
Characteristics
Spectral type B9 IV[3]
B−V color index 0.098±0.026[2]
Astrometry
Radial velocity (Rv)−53.1[4] km/s
Proper motion (μ) RA: +39.126[1] mas/yr
Dec.: –13.931[1] mas/yr
Parallax (π)6.2649 ± 0.1382 mas[1]
Distance520 ± 10 ly
(160 ± 4 pc)
Absolute magnitude (MV)0.32[2]
Details
Radius5.62+0.08
−0.19[1] R☉
Luminosity116.5±3.0[1] L☉
Surface gravity (log g)3.8[4] cgs
Temperature7,946[5] K
Metallicity [Fe/H]−0.23±0.04[2] dex
Rotational velocity (v sin i)110[4] km/s
Other designations
58 Aql, BD−00° 3871, GC 27565, HD 188350, HIP 97980, HR 7596, SAO 125219[6]
Database references
SIMBADdata

58 Aquilae is a single[7] star located around 520 light years from the Sun in the equatorial constellation of Aquila, near Eta Aquilae. 58 Aquilae is its Flamsteed designation. It is visible to the naked eye as a dim, blue-white hued star with an apparent visual magnitude of 5.60.[2] This object is moving closer to the Earth with a heliocentric radial velocity of −53 km/s,[4] and may come as close as 161 light-years in around 1.8 million years.[2]

This object has a stellar classification of B9 IV,[3] matching a late B-type subgiant star. It has 5.6[1] times the radius of the Sun with a high rate of spin, showing a projected rotational velocity of 110 km/s.[4] The star is radiating 117[1] times the luminosity of the Sun from its photosphere at an effective temperature of 7,946 K.[5]

  1. ^ a b c d e f g h i Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  2. ^ a b c d e f Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Houk1999 was invoked but never defined (see the help page).
  4. ^ a b c d e Cite error: The named reference gebran2016 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference pastel2016 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).