Planet HD 20794 d
| Name | HD 20794 d | |
| Discovered in | 2011 | |
| Mass | 0.015 (± 0.0019) MJ |  |
| Semi-major axis | 0.3499 (± 0.0059) AU | |
| Orbital period | 90.309 day | |
| Eccentricity | 0.0 | |
| ω | — | |
| Tperi | — | |
| Radius | — | |
| Inclination | — | |
| Update | Aug. 3, 2012 | |
| Detection Method | Radial Velocity | |
| Mass Detection Method | — | |
| Radius Detection method | — | |
| Molecules detected | — | |
| Primary transit | — | |
| Secondary transit | — | |
| Anomaly angle | — | |
| impact Parameter b | — | |
| Time Vr=0 | — | |
| Velocity Semiamplitude K | — | |
| Calculated temperature | — | |
| Measured temperature | — | |
| Hottest point longitute | — | |
| Geometric albedo | — | |
| Surface gravity log(g/gH) | — | |
| Alternate Names | — |
Observability Predictor 
Star
| Name | HD 20794 | |
| Distance | 6.06 pc | |
| Spectral type | G8V | |
| Apparent magnitude V | 4.26 | |
| Mass | 0.85 (± 0.04) MSun | |
| Age | 14.0 ( -5.0 +6.0 ) Gyr | |
| Effective temperature | 5490.0 (± 70.0) K | |
| Radius | 0.9 (± 0.03) RSun | |
| Metallicity [Fe/H] | -0.38 (± 0.06) | |
| Detected Disc | IR Excess | |
| Magnetic Field | — | |
| RA2000 | 03:19:56.0 | |
| Dec2000 | -43:04:11 | |
| Alternate Names | — | |
| Planetary system | 3 planets |
More data
- Simbad
- Most recent references (ADS)
Related publications
Compact planetary systems perturbed by an inclined companion: II. Stellar spin-orbit evolution
2014
BOUE G. & FABRYCKY D.
ApJ, 789, 111
paper arxiv
The HARPS search for Earth-like planets in the habitable zone: I -- Very low-mass planets around HD20794, HD85512 and HD192310
2011
PEPE F., LOVIS Ch., SEGRANSAN D., BENZ W., BOUCHY F., DUMUSQUE X., MAYOR M., QUELOZ D., SANTOS N. & UDRY S.
Astron. & Astrophys., 534, A58
paper arxiv
Characteristics of the closest known G-type exoplanet host 82 Eri
2012
BERNKOPF J., CHINI R., BUDA L.-S., DEMBKY T., DRASS H. & 2 additional authors
MNRAS, in press
paper
Herschel imaging of 61 Vir: implications for the prevalence of debris in low-mass planetary systems
2012
WYATT M., KENNEDY G., SIBTHORPE B., MORO-MARTIN A., LESTRADE J.-F. & 12 additional authors
MNRAS
arxiv