All names: GALEX J142559.7+365800, SDSS J142559.73+365800.8, SDSS J142559.72+365800.7, [HHD2009] SDSS J1425+3658, WIRED J142559.72+365800.7, WD 1423+371, Gaia EDR3 1481258491527416192, Gaia DR2 1481258491527416192, SDSS J142559.73+365800.7, LAMOST J142559.72+365800.7, Gaia DR3 1481258491527416192
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | Gaia DR2 | Stilism | Tremblay et al. 2011 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 25 59.72 (0.09) | 14 25 59.73 | 14 25 59.72 (0.1) | 14 25 59.73 (0.09) | 14 25 59.73 | 14 25 59.93 | 14 25 59.73 | |||||
| Declination | 36 58 00.87 (0.1) | 36 58 00.77 | 36 58 00.87 (0.1) | 36 58 00.82 (0.1) | 36 58 00.78 | 36 57 55.80 | 36 58 00.77 | |||||
| Spectral type | DA+M | DA | DA+dM | DA+M | DA d | DA+M | ||||||
| Effective temperature | [K] | 30215.0 (327) | 31460.0 (540) | 8621.0 (49) | 8439.0 (59) | |||||||
| log(g) | [cgs] | 7.38 (0.08) | 7.22 (0.1) | 8.98 (0.03) | 8.65 (0.08) | |||||||
| Mass | [M☉] | 0.39 (0.03) | 0.39 (0.03) | |||||||||
| log(Luminosity) | [L☉] | -0.47 (0.06) | ||||||||||
| Cooling age | [Gyr] | 0.0027 (0.001) | 0.0170 | |||||||||
| 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] | 0.88 (0.2) | 0.89 (0.2) | 0.88 (0.2) | ||||||||
| Distance | [pc] | 1131.19 (192) | 1118.15 (231) | 1131.22 (192) | ||||||||
| Composition | H | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -6.570462775 (0.1) | -6.731683879 (0.2) | -6.57 (0.1) | 3.6 | |||||||
| Proper motion (declination) | [mas/yr] | 2.82262153 (0.1) | 2.566361303 (0.3) | 2.823 (0.1) | 1.6 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | WDMS | ||||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 18.50 (0.01) | 18.50 (0.01) | 18.51 (0.02) | 18.51 | 18.51 (0.02) | |||||||
| g magnitude | 18.66 (0.008) | 18.66 (0.008) | 18.69 (0.02) | 18.69 | 18.69 (0.02) | |||||||
| r magnitude | 18.98 (0.01) | 18.97 (0.01) | 18.96 (0.02) | 18.96 | 18.98 (0.02) | |||||||
| i magnitude | 18.74 (0.01) | 18.74 (0.01) | 18.74 (0.02) | 18.74 | 18.74 (0.02) | |||||||
| z magnitude | 18.47 (0.03) | 18.48 (0.03) | 18.48 (0.03) | 18.48 | 18.47 (0.03) | |||||||
| G magnitude | 18.70 (0.02) | 18.72 | 18.70 (0.003) | |||||||||
| BP magnitude | 18.80 (0.02) | 18.75 | ||||||||||
| RP magnitude | 18.46 (0.03) | 18.38 | ||||||||||
| Pan g magnitude | 18.73 (0.004) | |||||||||||
| Pan r magnitude | 19.00 (0.008) | |||||||||||
| Pan i magnitude | 18.76 (0.005) | |||||||||||
| Pan z magnitude | 18.51 (0.01) | |||||||||||
| Pan y magnitude | 18.34 (0.02) | |||||||||||
| E(B-V) | 0.020 | |||||||||||
* 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.