Other names: WD 1247+550, 12501+5447, LP 131-66
| Parameter | Unit | Limoges et al. 2015 | Bergeron et al. 2001 | Bergeron et al. 1997 | Simbad |
|---|---|---|---|---|---|
| Right ascension | 12 50 07.77 | ||||
| Declination | 54 47 07.12 | ||||
| Spectral type | DC | DC | |||
| Effective temperature | [K] | 4530 | 4050 | 4000 | |
| log(g) | [cgs] | 7.96 | 7.57 | 7.52 | |
| Mass | [M☉] | 0.56 | 0.35 | 0.33 | |
| log(Luminosity) | [L☉] | -4.20 | -4.20 | -4.20 | |
| Age | [Gyr] | 4.63 | 4.12 | ||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(C/H) | |||||
| log(N/H) | |||||
| log(O/H) | |||||
| log(Na/H) | |||||
| log(Mg/H) | |||||
| log(Al/H) | |||||
| log(Si/H) | |||||
| log(P/H) | |||||
| log(S/H) | |||||
| log(Ca/H) | |||||
| log(Sc/H) | |||||
| log(Ti/H) | |||||
| log(Cr/H) | |||||
| log(Mn/H) | |||||
| log(Fe/H) | |||||
| log(Ni/H) | |||||
| Parallax | [mas] | 39.50 | 39.60 | 39.50 | 39.50 |
| Distance | [pc] | 25.30 | 25.25 | ||
| Composition | H | H | H | ||
| Proper motion (right ascension) | [mas/yr] | -244.732 | |||
| Proper motion (declination) | [mas/yr] | -1259.04 | |||
| Variability | |||||
| Magnetic | no | no | |||
| Has a disc | |||||
| B magnitude | 19.23 | 19.23 | 19.40 | ||
| V magnitude | 17.79 | 17.79 | 17.82 | ||
| R magnitude | 17.03 | 17.03 | 17.10 | ||
| I magnitude | 16.34 | 16.34 | 16.40 | ||
| J magnitude | 15.72 | 15.72 | 15.79 | ||
| H magnitude | 15.67 | 15.67 | 15.66 | ||
| K magnitude | 15.63 | 15.63 | 15.40 | ||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||