09h23m47.0873s, +20° 21′ 52.034″| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Leo |
| Right ascension | 09h23m 47.0873s |
| Declination | +20° 21' 52.034" |
| Apparent magnitude (V) | +7.74 |
| Distance | 106.2 ly (32.56 pc) |
| Spectral type | G2/G3 |
| Other designations | |
BD+20°2374, FK5 4836, GC 12951, HIP 46070, SAO 80800 | |
| Database references | |
| SIMBAD | data |
HD 81040 is a star in the constellationofLeo. It is G-type yellow dwarf like our Sun.
The Sun dwarfs HD 81040 in terms of physical characteristics. The age of the star is not precisely known; the ELODIE spectrograph suggested 0.8 Gyr and found it to have a young dust disk. Later measurements by modelling chromosperic activity suggested an age of 4.18 Gyr.
On November 24, 2005, a superjovian planet was announced by Sozzetti.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | >6.86 ± 0.71 MJ | 1.94 | 1001.7 ± 7.0 | 0.526 ± 0.042 | — | — |
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