HAT-P-67
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Hercules[1] |
| HAT-P-67A | |
| Right ascension | 17h 06m 26.5608s[2] |
| Declination | +44° 46′ 37.068″[2] |
| Apparent magnitude (V) | 10.069(16)[3] |
| HAT-P-67B | |
| Right ascension | 17h 06m 26.2261s[4] |
| Declination | +44° 46′ 45.446″[4] |
| Characteristics | |
| Spectral type | F5IV[5] |
| Apparent magnitude (J) | 9.145(21)[6] |
| Apparent magnitude (H) | 8.961(19)[6] |
| Apparent magnitude (K) | 8.900(19)[6] |
| Variable type | Planetary transit[7] |
| Astrometry | |
| HAT-P-67A | |
| Radial velocity (Rv) | −2.234(27)[8] km/s |
| Proper motion (μ) | RA: 9.541(11) mas/yr[2] Dec.: −18.251(13) mas/yr[2] |
| Parallax (π) | 2.6869±0.0101 mas[2] |
| Distance | 1,214 ± 5 ly (372 ± 1 pc) |
| Absolute magnitude (MV) | 2.50+0.13 −0.23[7] |
| HAT-P-67B | |
| Proper motion (μ) | RA: 9.977(56) mas/yr[4] Dec.: −18.370(58) mas/yr[4] |
| Parallax (π) | 2.5831±0.0485 mas[4] |
| Distance | 1,260 ± 20 ly (387 ± 7 pc) |
| Details | |
| A | |
| Mass | 1.73±0.10[9] M☉ |
| Radius | 2.65±0.12[5] R☉ |
| Luminosity | 11.96+0.84 −0.73[9] L☉ |
| Surface gravity (log g) | 3.84±0.03[9] cgs |
| Temperature | 6640+140 −130[9] K |
| Metallicity [Fe/H] | 0.14+0.14 −0.12[9] dex |
| Rotation | 5.40±0.09[9] days |
| Rotational velocity (v sin i) | 35.8±1.1[5] km/s |
| Age | 1.46+0.29 −0.26[9] Gyr |
| B | |
| Mass | 0.576[4] M☉ |
| Radius | 0.678[4] R☉ |
| Luminosity | 0.065[4] L☉ |
| Surface gravity (log g) | 4.48[4] cgs |
| Temperature | 3600[4] K |
| Position (relative to HAT-P-67A)[10] | |
| Component | HAT-P-67B |
| Angular distance | 9.09945(6)″ |
| Position angle | 336.98893(40)° |
| Projected separation | 3400 AU [5] |
| Other designations | |
| BD+44 2654, Gaia DR3 1358614983131339392, TOI-2014, TYC 3084-533-1, GSC 03084-00533, 2MASS J17062656+4446371[11] | |
| HAT-P-67B: Gaia DR3 1358614983131339392[5] | |
| Database references | |
| SIMBAD | data |
HAT-P-67 is a binary star system, made up of a F-type subgiant and a red dwarf star, which is located about 1,200 light-years away in the constellation Hercules. There is a hot Saturn planet orbiting the primary star, which is named HAT-P-67b.
The stellar system consists of the F class primary star with a red dwarf companion separated by 9 arc-seconds or about 3400 astronomical units.[10] According to measurements taken by the Gaia spacecraft the two stars have nearly identical parallax and proper motions confirming that they are a binary system.[5]
The primary star is a rapidly rotating subgiant star with a radius 2.65 times that of the Sun and a mass 1.64 times that of the Sun.[5][7]
The secondary star is a red dwarf[5] with a radius 0.68 times that of the Sun and a mass 0.58 times that of the Sun.[4]
