GSC 02620-00648
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.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Hercules |
| A | |
| Right ascension | 17h 53m 13.0490s |
| Declination | +37° 12′ 42.586″ |
| Apparent magnitude (V) | 11.592 |
| Ca | |
| Right ascension | ~17h 53m 13.0496s |
| Declination | ~+37° 12′ 44.139″ |
| Apparent magnitude (V) | 13.85 |
| Characteristics | |
| Spectral type | F8/K or M |
| Apparent magnitude (B) | 12.1120005 ±0.007 |
| Apparent magnitude (V) | 11.592 ±0.004 |
| Apparent magnitude (J) | 10.583 ±0.018 |
| Apparent magnitude (H) | 10.350 ±0.015 |
| Apparent magnitude (K) | 10.330 ±0.019 |
| Astrometry | |
| A | |
| Proper motion (μ) | RA: −6.382 mas/yr Dec.: −20.891 mas/yr |
| Parallax (π) | 1.9686 ± 0.0124 mas |
| Distance | 1,660 ± 10 ly (508 ± 3 pc) |
| C | |
| Proper motion (μ) | RA: −6.307 mas/yr Dec.: −20.387 mas/yr |
| Parallax (π) | 1.9657 ± 0.1076 mas |
| Distance | 1,660 ± 90 ly (510 ± 30 pc) |
| Details | |
| A | |
| Mass | 1.18 M☉ |
| Radius | 1.9 R☉ |
| Luminosity | 4.6 L☉ |
| Surface gravity (log g) | 3.98 cgs |
| Temperature | 6,200±75 K |
| Metallicity [Fe/H] | +0.14±0.09 dex |
| Rotational velocity (v sin i) | 8.3 km/s |
| Age | 4.7±2 Gyr |
| B | |
| Mass | 0.59 M☉ |
| Other designations | |
| Database references | |
| SIMBAD | data |
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.