All names: EPIC 220635383, [TFW97] J010441.36+094943.30, PG 0102+096, Gaia DR2 2581380077674117120, Gaia DR3 2581380077674117120, CHSS 3228, RX J0104.7+0949, SDSS J010441.27+094942.2, SDSS J010441.26+094942.2, GALEX J010441.2+094942, WD 0102+095, PHL 972, J0104+0949, uvby98 680010205, TIC 380883584, WDJ010441.30+094942.38, 2MASS J01044130+0949423, Gaia EDR3 2581380077674117120
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Kilic et al. 2020 | Gaia DR2 | Stilism | Koester et al. 2014 | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 01 04 41.25 (0.03) | 01 04 41.25 (0.06) | 01 04 41.25 | 01 04 41.30 (0.03) | 01 04 41.25 | 01 04 40.87 | |||||||
| Declination | 09 49 42.14 (0.02) | 09 49 42.15 (0.04) | 09 49 42.14 | 09 49 42.38 (0.02) | 09 49 42.15 | 09 49 40.08 | |||||||
| Spectral type | DA | DA | DA | DA | DA2.0 | DA2 | |||||||
| Effective temperature | [K] | 23620.0 (286) | 23622.0 (287) | 25001.0 (340) | 25810.0 (391) | 25812.0 (234) | |||||||
| log(g) | [cgs] | 7.94 (0.01) | 7.93 (0.01) | 7.93 (0.09) | 7.96 (0.05) | 8.05 (0.009) | |||||||
| Mass | [M☉] | 0.6 (0.009) | 0.596 (0.009) | 0.599 (0.05) | 0.61 (0.03) | 0.665 (0.007) | |||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | ||||||||||||
| log(H/He) | |||||||||||||
| log(C/He) | |||||||||||||
| log(Ca/He) | |||||||||||||
| log(Ca/H) | |||||||||||||
| log(C/H) | -8 (0.2) | ||||||||||||
| log(N/H) | |||||||||||||
| log(O/H) | |||||||||||||
| log(Na/H) | |||||||||||||
| log(Mg/H) | |||||||||||||
| log(Al/H) | |||||||||||||
| log(Si/H) | -7.35 (0.1) | ||||||||||||
| 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] | 15.08 (0.04) | 15.01 (0.07) | 15.08 | 15.08 (0.04) | 15.01 (0.07) | |||||||
| Distance | [pc] | 66.33 (0.2) | 66.61 (0.3) | 70.00 | 66.33 | 66.33 (0.2) | 66.61 (0.3) | ||||||
| Composition | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -48.77229178 (0.05) | -48.66121111 (0.1) | -48.772 (0.05) | -48.66121111 | ||||||||
| Proper motion (declination) | [mas/yr] | -15.05430216 (0.04) | -15.05518592 (0.08) | -15.054 (0.04) | -15.05518592 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 13.80 | ||||||||||||
| V magnitude | 14.44 (0.02) | 14.10 | |||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 15.02 (0.04) | ||||||||||||
| H magnitude | 15.07 (0.08) | ||||||||||||
| K magnitude | 15.00 (0.1) | ||||||||||||
| u magnitude | 14.20 (0.004) | 14.20 (0.004) | |||||||||||
| g magnitude | 14.27 (0.003) | 14.27 (0.003) | |||||||||||
| r magnitude | 14.64 (0.004) | 14.64 (0.004) | |||||||||||
| i magnitude | 14.99 (0.004) | 14.99 (0.004) | |||||||||||
| z magnitude | 15.32 (0.006) | 15.32 (0.006) | |||||||||||
| G magnitude | 14.49 (0.001) | 14.51 | 14.49 | 14.49 (0.003) | 14.51 | ||||||||
| BP magnitude | 14.37 (0.001) | 14.33 | 14.33 | ||||||||||
| RP magnitude | 14.72 (0.001) | 14.71 | 14.71 | ||||||||||
| Pan g magnitude | 14.32 (0.002) | ||||||||||||
| Pan r magnitude | 14.71 (0.006) | ||||||||||||
| Pan i magnitude | 15.04 (0.005) | ||||||||||||
| Pan z magnitude | 15.31 (0.006) | ||||||||||||
| Pan y magnitude | 15.50 (0.005) | ||||||||||||
| E(B-V) | 0.003 | ||||||||||||
* 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.