All names: WD 0438+108, uvby98 520254003, GCRV 55317, CSI+10-04382, TIC 373261269, UBV M 41452, GEN# +5.20254003, Cl* Melotte 25 HZ 14, J0441+1059, BPS BS 17574-0057, Gaia EDR3 3294248609046258048, WD 0438+10, GSC 00686-00226, LP 475-251, SDSS J044101.78+105939.9, HZ 14, KUV 04383+1054, SDSS J044101.78+105939.8, UBV 4500, EGGR 42, Gaia DR3 3294248609046258048, Cl* Melotte 25 REID 408, Gaia DR2 3294248609046258048, FB 41, 2MASS J04410173+1059399, WDJ044101.74+1059310.0
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Kilic et al. 2020 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 04 41 01.84 (0.03) | 04 41 01.84 (0.04) | 04 41 01.84 | 04 41 01.74 (0.03) | 04 41 01.84 | 04 40 57.86 | ||||||
| Declination | 10 59 39.83 (0.02) | 10 59 39.83 (0.03) | 10 59 39.83 | 10 59 40.00 (0.02) | 10 59 39.83 | 10 58 44.40 | ||||||
| Spectral type | DA | DA | DA | DA | DA1.8 | DA2 | ||||||
| Effective temperature | [K] | 27458.0 (384) | 27460.0 (382) | 27540.0 (403) | 29622.0 (273) | |||||||
| log(g) | [cgs] | 8.15 (0.01) | 8.15 (0.01) | 8.15 (0.05) | 8.24 (0.009) | |||||||
| Mass | [M☉] | 0.729 (0.01) | 0.725 (0.01) | 0.73 (0.03) | 0.786 (0.008) | |||||||
| log(Luminosity) | [L☉] | |||||||||||
| 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] | 20.33 (0.04) | 20.25 (0.05) | 20.33 | 20.33 (0.04) | 20.25 (0.05) | 23.00 (5) | |||||
| Distance | [pc] | 49.20 (0.09) | 49.39 (0.1) | 49.00 | 49.20 | 49.20 (0.09) | 49.39 (0.1) | 43.48 (9) | ||||
| Composition | H | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 91.3752082 (0.04) | 91.35439265 (0.09) | 91.375 (0.04) | 91.35439265 | |||||||
| Proper motion (declination) | [mas/yr] | -10.77774524 (0.03) | -10.64260447 (0.05) | -10.778 (0.03) | -10.64260447 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | 13.68 | |||||||||||
| V magnitude | 13.86 | |||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 14.50 (0.04) | |||||||||||
| H magnitude | 14.62 (0.05) | |||||||||||
| K magnitude | 14.60 (0.06) | |||||||||||
| u magnitude | 14.17 (0.007) | 14.17 (0.007) | ||||||||||
| g magnitude | 13.76 (0.004) | 13.76 (0.004) | ||||||||||
| r magnitude | 14.14 (0.003) | 14.14 (0.003) | ||||||||||
| i magnitude | 15.07 (0.009) | 15.07 (0.009) | ||||||||||
| z magnitude | 15.26 (0.01) | 15.26 (0.01) | ||||||||||
| G magnitude | 13.85 (0.0009) | 13.86 | 13.85 | 13.85 (0.003) | 13.86 | |||||||
| BP magnitude | 13.72 (0.0009) | 13.67 | 13.67 | |||||||||
| RP magnitude | 14.11 (0.0007) | 14.11 | 14.11 | |||||||||
| Pan g magnitude | 13.69 (0.005) | |||||||||||
| Pan r magnitude | 14.11 (0.003) | |||||||||||
| Pan i magnitude | 14.44 (0.002) | |||||||||||
| Pan z magnitude | 14.73 (0.001) | |||||||||||
| Pan y magnitude | 14.91 (0.004) | |||||||||||
| E(B-V) | 0.001 | |||||||||||
* 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.