Table 1
Stellar properties of ϵ Eri.
| Property | ||
|
|
||
| Name | ϵ Eri, GJ144, HIP16537 | |
| Coordinate (J2000) | 03 32 55.84, –09 27 29.73a | |
| Proper motion (mas/yr) | –975.17 ± 0.20, 19.49 ± 0.20a | |
| Distance (pc) | 3.218 ± 0.002a | |
| Spectral type | K2Vb | |
| Temperature (K) | 4999b | |
| Surface gravity; log g | 4.53b | |
| Metallicity [Fe/H] | –0.1b | |
| V-band mag (mag) | 3.72c | |
| R-band mag (mag) | 3.00c | |
| J-band mag (mag) | 2.23d | |
| H-band mag (mag) | 1.88d | |
| K-band mag (mag) | 1.78d | |
| Age (Myr) | 200, 400, 800e | |
Notes.
Coodinates, proper motion, and parallax are taken from the Hipparcos catalogue (van Leeuwen 2007).
Spectral type, effective temperature, surface gravity, and metallicity are obtained via spectroscopy for dwarfs in the Hipparcos catalogue (Gray et al. 2006).
V- and R-band magnitudes taken from Tycho 1, 2 catalogues (Hoeg et al. 1997; Høg et al. 2000).
J-, H-, and K-band magnitudes taken from the 2MASS catalogue (Cutri et al. 2003)
System age of the target was obtained from Fuhrmann (2004), Mamajek & Hillenbrand (2008).
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