All names: UCAC2 37186591, NLTT 30052, ASCC 866869, Gaia DR2 3922239558628866048, 2MASS J12140441+1526225, LSPM J1214+1526, LP 434-97, USNO-B1.0 1054-00209158
| Parameter | Unit | Gaia DR2 | Bergeron et al. 2001 | Simbad | |
|---|---|---|---|---|---|
| Right ascension | 12 14 04.24 (0.2) | 12 14 04.41 (0.2) | |||
| Declination | 15 26 23.79 (0.1) | 15 26 22.44 (0.1) | |||
| Spectral type | DC | ||||
| Effective temperature | [K] | 7630.0 (220) | |||
| log(g) | [cgs] | 8.06 (0.2) | |||
| Mass | [M☉] | 0.61 (0.1) | |||
| log(Luminosity) | [L☉] | -3.35 (0.09) | |||
| Cooling age | [Gyr] | 1.4400 (0.3) | |||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| log(N/He) | |||||
| log(O/He) | |||||
| log(Na/He) | |||||
| log(Mg/He) | |||||
| log(Al/He) | |||||
| log(Si/He) | |||||
| log(P/He) | |||||
| log(S/He) | |||||
| log(Cl/He) | |||||
| log(Sc/He) | |||||
| log(Ti/He) | |||||
| log(V/He) | |||||
| log(Cr/He) | |||||
| log(Mn/He) | |||||
| log(Fe/He) | |||||
| log(Co/He) | |||||
| log(Ni/He) | |||||
| log(Cu/He) | |||||
| log(Zn/He) | |||||
| log(Ga/He) | |||||
| log(Ge/He) | |||||
| log(Sr/He) | |||||
| Parallax | [mas] | 10.17 (0.2) | 33.50 (4) | 10.17 (0.2) | |
| Distance | [pc] | 98.28 (2) | 29.85 (3) | 98.28 (2) | |
| Composition | He | ||||
| Proper motion (right ascension) | [mas/yr] | -157.209 (0.4) | -157.209 (0.4) | ||
| Proper motion (declination) | [mas/yr] | 87.184 (0.2) | 87.184 (0.2) | ||
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.87 | 15.63 | |||
| V magnitude | 15.61 | ||||
| R magnitude | 15.43 | 13.50 | |||
| I magnitude | 15.24 | ||||
| J magnitude | 15.15 | 10.73 (0.03) | |||
| H magnitude | 15.03 | 10.05 (0.03) | |||
| K magnitude | 15.02 | 9.86 (0.02) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 13.13 | 13.13 (0.0004) | |||
| BP magnitude | 14.21 | ||||
| RP magnitude | 12.09 | ||||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.