GSC 02620-00648

GSC 02620-00648
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Hercules
A[1]
Right ascension 17h 53m 13.0490s[2]
Declination +37° 12′ 42.586″[2]
Apparent magnitude (V) 11.592[3]
Ca
Right ascension ~17h 53m 13.0496s[4]
Declination ~+37° 12′ 44.139″[4]
Apparent magnitude (V) 13.85[1]
Characteristics
Spectral type F8[1]/K or M[1]
Apparent magnitude (B) 12.1120005 ±0.007[5]
Apparent magnitude (V) 11.592 ±0.004[5]
Apparent magnitude (J) 10.583 ±0.018[3]
Apparent magnitude (H) 10.350 ±0.015[3]
Apparent magnitude (K) 10.330 ±0.019[3]
Astrometry
A
Proper motion (μ) RA: −6.382[2] mas/yr
Dec.: −20.891[2] mas/yr
Parallax (π)1.9686 ± 0.0124 mas[2]
Distance1,660 ± 10 ly
(508 ± 3 pc)
C
Proper motion (μ) RA: −6.307[4] mas/yr
Dec.: −20.387[4] mas/yr
Parallax (π)1.9657 ± 0.1076 mas[4]
Distance1,660 ± 90 ly
(510 ± 30 pc)
Details
A
Mass1.18[1] M☉
Radius1.9[2] R☉
Luminosity4.6[2] L☉
Surface gravity (log g)3.98[2] cgs
Temperature6,200±75[citation needed] K
Metallicity [Fe/H]+0.14±0.09[citation needed] dex
Rotational velocity (v sin i)8.3[6] km/s
Age4.7±2[citation needed] Gyr
B
Mass0.59[1] M☉
Other designations
TrES-4 Parent Star, 2MASS J17531304+3712426, TYC 2620-648-1[3]
Database references
SIMBADdata

GSC 02620-00648 is a double star in the constellation Hercules. The brighter of the pair is a magnitude 12 star located approximately 1,660 light-years away. This star is about 1.18 times as massive as the Sun.[1]

  1. ^ a b c d e f g Cite error: The named reference binary was invoked but never defined (see the help page).
  2. ^ a b c d e f g h Cite error: The named reference dr3a was invoked but never defined (see the help page).
  3. ^ a b c d e Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  4. ^ a b c d e Cite error: The named reference dr3c was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Mandushev2007 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference brewer2018 was invoked but never defined (see the help page).