HD 10647
Coordinates: 
01h 42m 29.32s, −53° 44′ 27.00″
01h 42m 29.32s, −53° 44′ 27.00″  | |
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Eridanus |
| Right ascension | 01h 42m 29.3145s[1] |
| Declination | −53° 44′ 26.991″[1] |
| Apparent magnitude (V) | 5.52[2] |
| Characteristics | |
| Spectral type | F9V[3] |
| B−V color index | 0.551[2] |
| Absolute magnitude (MV) | 4.32 |
| Details | |
Gyr | |
| Database references | |
| SIMBAD | data |
HD 10647 (q1 Eridani) is a 6th-
extrasolar planet
was discovered orbiting this star in 2003.
Planetary system
In 2003,
CORALIE data was finally published in 2013.[3]
The
circumstellar disk.[7] Out of the 300 nearest Sun-like stars, the disk has the highest fractional luminosity out of all of them.[8] It is unusually bright, but not unusually massive; the lower bound of the mass is 8 times that of the Earth.[8]
The inclination of the disk is relatively high,[9] and the disk is asymmetrical, being more extended in the northeast direction than the southwest.[8] It extends from 34 astronomical units (AU) at the inner edge to 134 AU at the outer edge. The inner edge is sharp, suggesting the existence of a planet that carved out the edge. HD 10647 b, with a semimajor axis of about 2 AU, is too far to be responsible. However, other potential planets may be responsible for this feature.[8]
There is some evidence for an additional, warm asteroid belt-like component further in, at 3 to 10 AU away from the star.[8]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b[3] | >0.94 ± 0.08 MJ | 2.015 ± 0.011 | 989.2 ± 8.1 | 0.15 ± 0.08 | — | — |
| Dust disk[8] | 3–10 AU | — | — | |||
| Dust disk[8] | 34–134 AU | 76.1 ± 1.0° | — | |||
References
- ^ S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ S2CID 16751327
- ^ S2CID 59467665.
- ^ "HD 10647". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2024-05-11.
- Bibcode:2004ASPC..321..298J.
- S2CID 119067572.
- doi:10.1086/191553.
- ^ .
- S2CID 7872724.
External links
- "A Jovian planet around HD 10647". Geneva Observatory.
- "HD 10647 / HR 506 / CP(D)-54 365 (q1 Eridani)". SolStation. Retrieved 2008-06-12.
- Sky Map: HD 10647
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