35 Leonis
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Leo |
| Right ascension | 10h 16m 32.289s |
| Declination | +23° 30′ 11.21″ |
| Apparent magnitude (V) | 5.97 |
| Characteristics | |
| 35 Leonis A | |
| Evolutionary stage | Main-sequence star to subgiant |
| Spectral type | G1.5IV–V |
| Apparent magnitude (U) | 6.8 |
| Apparent magnitude (B) | 6.6 |
| Apparent magnitude (R) | 5.6 |
| Apparent magnitude (G) | 5.8 |
| Apparent magnitude (J) | 4.8 |
| Apparent magnitude (H) | 4.5 |
| Apparent magnitude (K) | 4.3 |
| B | |
| Evolutionary stage | Red dwarf |
| Apparent magnitude (K) | 8.4 |
| Astrometry | |
| Radial velocity (Rv) | −35.25±0.79 km/s |
| Proper motion (μ) | RA: −200.342±0.259 mas/yr Dec.: 32.03±0.32 mas/yr |
| Parallax (π) | 33.7721±0.258 mas |
| Distance | 96.6 ± 0.7 ly (29.6 ± 0.2 pc) |
| Absolute magnitude (MV) | +3.56 |
| Orbit | |
| Primary | A |
| Period (P) | 1.471 years (537 days) |
| Details | |
| A | |
| Mass | 1.34 M☉ |
| Radius | 2.12±0.18 R☉ |
| Luminosity | 4.37+0.76 −0.65 L☉ |
| Surface gravity (log g) | 3.87±0.02 cgs |
| Temperature | 5480±10 K |
| Metallicity [Fe/H] | 0.02±0.01 dex |
| Rotational velocity (v sin i) | 2.68±0.97 km/s |
| Age | 5.25+0.64 −0.57 Gyr |
| B | |
| Mass | 0.15 M☉ |
| Temperature | 3300+130 −140 K |
| Rotational velocity (v sin i) | <10.1 km/s |
| Position (relative to A) | |
| Component | B |
| Angular distance | 56.9±0.3 mas |
| Other designations | |
| BD+24 2207, Gaia DR2 725469767850488064, Gaia DR3 725469767850488064, HD 89010, HIP 50319, HR 4030, SAO 81260, PPM 100216, WDS J10167+2325B, NLTT 23866, TYC 1969-1260-1, IRAS 10137+2345, 2MASS J10163231+2330111 | |
| Database references | |
| SIMBAD | data |
35 Leonis (HIP 53019, HD 89010) is a spectroscopic binary star system located in the constellation of Leo, next to the star Zeta Leonis. It is located 96.5 ly (29.6 pc) from Earth based upon parallax measurements. The system consists of a G-type star (yellow dwarf) and a red dwarf star. With an apparent magnitude of 5.97, it can be naked-eye visible only from dark skies.