All names: USNO-B1.0 1538-00130229, 04389+6351, Gaia EDR3 481955636252073216, TIC 65963342, Gaia DR2 481955636252073216, LSPM J0438+6351, Gaia DR3 481955636252073216, WD 0434+637, PM J04389+6351, 2MASS J04385692+6351343
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Limoges et al. 2015 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 04 38 57.31 (0.04) | 04 38 57.30 (0.06) | 04 38 57.31 | 04 38 56.95 (0.04) | 04 38 56.66 | ||||
| Declination | 63 51 32.51 (0.04) | 63 51 32.56 (0.05) | 63 51 32.51 | 63 51 34.23 (0.04) | 63 51 32.40 | ||||
| Spectral type | DA+dM | DA | DA+dM | DA | |||||
| Effective temperature | [K] | 13190.0 (640) | |||||||
| log(g) | [cgs] | 7.78 (0.1) | |||||||
| Mass | [M☉] | 0.49 (0.05) | |||||||
| log(Luminosity) | [L☉] | -2.22 | |||||||
| Cooling age | [Gyr] | ||||||||
| 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] | 5.60 (0.06) | 5.58 (0.08) | 5.60 | 5.60 (0.06) | ||||
| Distance | [pc] | 178.53 (2) | 179.27 (3) | 146.00 (8) | 178.53 | 178.53 (2) | |||
| Composition | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | 149.7039672 (0.05) | 149.8427178 (0.1) | 149.704 (0.05) | |||||
| Proper motion (declination) | [mas/yr] | -107.4284177 (0.05) | -107.586299 (0.1) | -107.428 (0.05) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | ||||||||
| B magnitude | 17.20 | ||||||||
| V magnitude | |||||||||
| R magnitude | 16.80 | ||||||||
| I magnitude | |||||||||
| J magnitude | 15.39 | 15.39 (0.05) | |||||||
| H magnitude | 14.72 | 14.72 (0.06) | |||||||
| K magnitude | 14.24 | 14.24 (0.07) | |||||||
| u magnitude | |||||||||
| g magnitude | |||||||||
| r magnitude | |||||||||
| i magnitude | |||||||||
| z magnitude | |||||||||
| G magnitude | 17.04 (0.005) | 17.05 | 17.04 | 17.04 (0.003) | |||||
| BP magnitude | 17.36 (0.005) | 17.36 | |||||||
| RP magnitude | 16.50 (0.004) | 16.52 | |||||||
| Pan g magnitude | 17.41 (0.007) | ||||||||
| Pan r magnitude | 17.14 (0.005) | ||||||||
| Pan i magnitude | 16.88 (0.004) | ||||||||
| Pan z magnitude | 16.72 (0.003) | ||||||||
| Pan y magnitude | 16.61 (0.002) | ||||||||
| E(B-V) | 0.025 | ||||||||
* 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.