HAT-P-6
HAT-P-6 also named Sterrennacht 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. A search for a binary companion star using adaptive optics at the MMT Observatory turned out negative.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 23h 39m 05.8103s |
| Declination | +42° 27′ 57.505″ |
| Apparent magnitude (V) | +10.47 |
| Characteristics | |
| Spectral type | F8V |
| B−V color index | 0.41 |
| Variable type | planetary transit |
| Astrometry | |
| Radial velocity (Rv) | −22.13(44) km/s |
| Proper motion (μ) | RA: −20.202(18) mas/yr Dec.: 2.996(18) mas/yr |
| Parallax (π) | 3.6459 ± 0.0221 mas |
| Distance | 895 ± 5 ly (274 ± 2 pc) |
| Absolute magnitude (MV) | +3.36(16) |
| Details | |
| Mass | 1.29 ± 0.06 M☉ |
| Radius | 1.46 ± 0.06 R☉ |
| Luminosity | 3.57+0.52 −0.43 L☉ |
| Surface gravity (log g) | 4.22 ± 0.03 cgs |
| Temperature | 6,570 ± 80 K |
| Metallicity [Fe/H] | –0.13 ± 0.08 dex |
| Rotational velocity (v sin i) | 8.7 ± 1.0 km/s |
| Age | 2.3+0.5 −0.7 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
The name Sterrennacht (Starry Night) was selected in the NameExoWorlds held by the IAU after a painting by Van Gogh.
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