HAT-P-6

HAT-P-6 / Sterrennacht
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Andromeda[1]
Right ascension 23h 39m 05.8103s[2]
Declination +42° 27′ 57.505″[2]
Apparent magnitude (V) +10.47[3]
Characteristics
Spectral type F8V[4]
B−V color index 0.41[3]
Variable type planetary transit[5]
Astrometry
Radial velocity (Rv)−22.13(44)[6] km/s
Proper motion (μ) RA: −20.202(18) mas/yr[2]
Dec.: 2.996(18) mas/yr[2]
Parallax (π)3.6459 ± 0.0221 mas[2]
Distance895 ± 5 ly
(274 ± 2 pc)
Absolute magnitude (MV)+3.36(16)[5]
Details
Mass1.29 ± 0.06[7] M☉
Radius1.46 ± 0.06[7] R☉
Luminosity3.57+0.52
−0.43[5] L☉
Surface gravity (log g)4.22 ± 0.03[8] cgs
Temperature6,570 ± 80[7] K
Metallicity [Fe/H]–0.13 ± 0.08[7] dex
Rotational velocity (v sin i)8.7 ± 1.0[7] km/s
Age2.3+0.5
−0.7[7] Gyr
Other designations
Sterrennacht, Gaia DR3 1925321658551399040, TYC 3239-992-1, GSC 03239-00992, 2MASS J23390581+4227575[9]
Database references
SIMBADdata

HAT-P-6 also named Sterrennacht[10] is a star in the constellation Andromeda, located approximately 895 light years or 274 parsecs away from the Earth. It is an F-type star, implying that it is hotter and more massive than the Sun. The apparent magnitude of the star is +10.54, which means that it can only be visible through the telescope. The absolute magnitude of +3.36 is brighter than the Sun's +4.83, meaning that the star itself is brighter than the Sun.[5] A search for a binary companion star using adaptive optics at the MMT Observatory turned out negative.[11]

The name Sterrennacht (Starry Night) was selected in the NameExoWorlds held by the IAU after a painting by Van Gogh.[10]

  1. ^ Cite error: The named reference Roman1987 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference Gaia DR3 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference TYCHO was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Faedi2013 was invoked but never defined (see the help page).
  5. ^ a b c d Cite error: The named reference Noyes2008 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Gaia was invoked but never defined (see the help page).
  7. ^ a b c d e f Cite error: The named reference Bonomo2017 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Torres2012 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Simbad was invoked but never defined (see the help page).
  10. ^ a b "Approved names". NameExoworlds. Retrieved 2020-01-02.
  11. ^ Cite error: The named reference Adams2013 was invoked but never defined (see the help page).