Eta Leonis
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| Observation data Epoch J2000 |
|
|---|---|
| Constellation (pronunciation) |
Leo |
| Right ascension | 10h 07m 20.0s |
| Declination | +16° 45′ 46″ |
| Apparent magnitude (V) | 3.52 |
| Characteristics | |
| Spectral type | A0 Ib |
| U-B color index | -0.21 |
| B-V color index | -0.03 |
| Variable type | Eclipsing binary |
| Astrometry | |
| Radial velocity (Rv) | 3 km/s |
| Proper motion (μ) | RA: −1.94 mas/yr Dec.: −0.53 mas/yr |
| Parallax (π) | 1.53 ± 0.77 mas |
| Distance | approx. 2000 ly (approx. 700 pc) |
| Absolute magnitude (MV) | −5.60 |
| Details | |
| Mass | ? M☉ |
| Radius | 44 R☉ |
| Luminosity | 16,400 L☉ |
| Temperature | ~9,900 K |
| Metallicity | ? |
| Rotation | 20 km/s |
| Age | ? years |
| Other designations | |
Eta Leonis (η Leo / η Leonis) is a white fourth-magnitude star in the constellation Leo. It has the Arabic traditional name of Al Jabhah, meaning "Front" or "Forehead".
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