All names: WD 1210-011, LAMOST J121258.25-012309.9, 2MASS J12125824-0123101, SDSS J121258.25-012310.2, EPIC 201371836, Gaia DR2 3697668912861183872, [HHD2009] SDSS J1212-0123, LINEAR 3197054, Gaia EDR3 3697668912861183872, SDSS J121258.25-012310.1, TIC 56813164, GALEX J121258.2-012309, Gaia DR3 3697668912861183872, WIRED J121258.25-012310.2
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Guo et al. 2015 | Tremblay et al. 2011 | Vincent et al. 2024 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 12 58.23 (0.07) | 12 12 58.25 | 12 12 58.23 (0.09) | 12 12 58.25 | 12 12 58.23 | 12 12 58.25 (0.07) | 12 12 58.25 | 12 12 57.84 | 12 12 58.25 | ||||||
| Declination | -01 23 09.92 (0.05) | -01 23 10.16 | -01 23 09.93 (0.06) | -01 23 10.21 | -01 23 09.92 | -01 23 10.20 (0.05) | -01 23 10.17 | -01 23 11.04 | -01 23 10.20 | ||||||
| Spectral type | DA+M | DA+M | DA | DA | DA+dMe | DA+M | DA dM | DA+M | DA+MS | ||||||
| Effective temperature | [K] | 17304.0 (143) | 18490.0 (180) | 17530.0 (238) | 17476.0 (79) | ||||||||||
| log(g) | [cgs] | 7.52 (0.04) | 7.58 (0.03) | 7.24 (0.03) | 7.24 (0.02) | ||||||||||
| Mass | [M☉] | 0.39 (0.01) | 0.44 (0.01) | ||||||||||||
| log(Luminosity) | [L☉] | ||||||||||||||
| Cooling age | [Gyr] | 0.0912 | |||||||||||||
| log(H/He) | |||||||||||||||
| log(C/He) | |||||||||||||||
| log(Ca/He) | |||||||||||||||
| log(Ca/H) | |||||||||||||||
| 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(Sc/H) | |||||||||||||||
| log(Ti/H) | |||||||||||||||
| log(Cr/H) | |||||||||||||||
| log(Mn/H) | |||||||||||||||
| log(Fe/H) | |||||||||||||||
| log(Ni/H) | |||||||||||||||
| Parallax | [mas] | 4.73 (0.08) | 4.80 (0.1) | 4.73 | 4.73 (0.08) | ||||||||||
| Distance | [pc] | 211.26 (4) | 208.23 (5) | 356.00 (109) | 211.26 | 211.26 (4) | |||||||||
| Composition | H | ||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -17.07497432 (0.08) | -16.89300472 (0.2) | -17.075 (0.08) | -12.9 | ||||||||||
| Proper motion (declination) | [mas/yr] | 17.14375716 (0.06) | 17.16649954 (0.1) | 17.144 (0.06) | 19.5 | ||||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | WDMS | WDMS | WDMS | WDMS | |||||||||||
| B magnitude | |||||||||||||||
| V magnitude | |||||||||||||||
| R magnitude | |||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | 14.81 (0.004) | ||||||||||||||
| H magnitude | 14.35 (0.05) | ||||||||||||||
| K magnitude | 14.02 (0.006) | ||||||||||||||
| u magnitude | 17.07 (0.007) | 17.05 | 17.07 (0.007) | 17.05 (0.02) | 17.05 | 17.06 (0.02) | |||||||||
| g magnitude | 16.76 (0.004) | 16.77 | 16.76 (0.004) | 16.77 (0.01) | 16.77 | 16.77 (0.01) | |||||||||
| r magnitude | 16.93 (0.004) | 16.94 | 16.93 (0.004) | 16.94 (0.01) | 16.94 | 16.94 (0.01) | |||||||||
| i magnitude | 16.63 (0.005) | 16.63 | 16.63 (0.005) | 16.63 (0.01) | 16.63 | 16.63 (0.02) | |||||||||
| z magnitude | 16.13 (0.007) | 16.14 | 16.13 (0.007) | 16.14 (0.02) | 16.14 | 16.14 (0.02) | |||||||||
| G magnitude | 16.67 (0.005) | 16.66 | 16.67 | 16.67 (0.003) | |||||||||||
| BP magnitude | 16.86 (0.005) | 16.84 | |||||||||||||
| RP magnitude | 16.20 (0.004) | 16.21 | |||||||||||||
| Pan g magnitude | 16.80 (0.007) | ||||||||||||||
| Pan r magnitude | 16.98 (0.01) | ||||||||||||||
| Pan i magnitude | 16.65 (0.004) | ||||||||||||||
| Pan z magnitude | 16.27 (0.003) | ||||||||||||||
| Pan y magnitude | 16.04 (0.005) | ||||||||||||||
| E(B-V) | 0.021 | ||||||||||||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.