Back Eta Herculis AST Eta Herculis BS Eta Herculis Spanish اتا هرکول Persian Eta Herculis French Eta Herculis ID Eta Herculis Italian ヘルクレス座イータ星 Japanese Eta Herculis Dutch Eta Herculis Polish
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Hercules |
| Right ascension | 16h 42m 53.7653s[1] |
| Declination | 38° 55′ 20.116″[1] |
| Apparent magnitude (V) | 3.487[1] |
| Characteristics | |
| Spectral type | G7.5 IIIb[1] |
| U−B color index | +0.61[2] |
| B−V color index | +0.92[2] |
| Astrometry | |
| Radial velocity (Rv) | 8.3[1] km/s |
| Proper motion (μ) | RA: 35.58[1] mas/yr Dec.: -84.98[1] mas/yr |
| Parallax (π) | 29.11 ± 0.52 mas[3] |
| Distance | 112 ± 2 ly (34.4 ± 0.6 pc) |
| Absolute magnitude (MV) | +0.84[4] |
| Details | |
| Mass | 2.01±0.11[5] M☉ |
| Radius | 8.92±0.07[5] R☉ |
| Luminosity | 45.8±2.3[5] L☉ |
| Temperature | 5,025±65[5] K |
| Metallicity [Fe/H] | −0.198[6] dex |
| Rotational velocity (v sin i) | 8[7] km/s |
| Age | 1.08±0.18[5] Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
Eta Herculis (η Her, η Herculis) is a third-magnitude star in the constellation Hercules. It is located at 110 light-years from Earth.[6]
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SIMBADwas invoked but never defined (see the help page). - ^ a b Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237. Bibcode:2002yCat.2237....0D.
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