| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Hercules[1] |
| Right ascension | 16h 20m 36.3576s[2] |
| Declination | +41° 02′ 53.107″[2] |
| Apparent magnitude (V) | +8.71[3] |
| Characteristics | |
| Spectral type | F8V[3] |
| Variable type | planetary transit,[4] planet-induced stellar pulsations[5] |
| Astrometry | |
| Radial velocity (Rv) | −20.47±0.30[2] km/s |
| Proper motion (μ) | RA: −10.078(12) mas/yr[2] Dec.: −29.057(15) mas/yr[2] |
| Parallax (π) | 7.7811 ± 0.0118 mas[2] |
| Distance | 419.2 ± 0.6 ly (128.5 ± 0.2 pc) |
| Absolute magnitude (MV) | +3.31[6] |
| Details | |
| Mass | 1.360±0.040[7] M☉ |
| Radius | 1.640+0.090 −0.080[7] R☉ |
| Luminosity | 4.3[2] L☉ |
| Surface gravity (log g) | 4.14±0.04[8] cgs |
| Temperature | 6,290±60[7] K |
| Metallicity [Fe/H] | 0.140±0.080[7] dex |
| Rotational velocity (v sin i) | 20.80±0.30[7] km/s |
| Age | 2.60±0.50[7] Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 147506, also known as HAT-P-2 and formally named Hunor, is a magnitude 8.7 F8 dwarf star that is somewhat larger and hotter than the Sun. The star is approximately 419 light-years (128 parsecs) from Earth and is positioned near the keystone of Hercules.[3] It is estimated to be 2 to 3 billion years old, towards the end of its main sequence life.[2] There is one known transiting exoplanet, and a second planet not observed to transit.[9]
Roman1987 was invoked but never defined (see the help page).Gaia DR3 was invoked but never defined (see the help page).Simbad was invoked but never defined (see the help page).Bakos2007 was invoked but never defined (see the help page).de Wit2017 was invoked but never defined (see the help page).Pál2010 was invoked but never defined (see the help page).Bonomo2017 was invoked but never defined (see the help page).Torres2012 was invoked but never defined (see the help page).deBeurs2023 was invoked but never defined (see the help page).