All names: LAMOST J110437.97+235641.4, Ton 53, SDSS J110437.92+235641.1, Gaia EDR3 3995171161331187584, LAMOST J110437.98+235642.1, USNO-B1.0 1139-00179684, Gaia DR3 3995171161331187584, PG 1101+242, Gaia DR2 3995171161331187584, SDSS J110437.97+235641.4, SDSS J110437.98+235641.5, TON 53, WD 1101+242, GALEX J110437.9+235642
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Liebert et al. 2005 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 11 04 37.90 (0.06) | 11 04 37.97 | 11 04 37.90 (0.07) | 11 04 37.90 | 11 04 38.01 (0.06) | 11 04 39.05 | 11 04 37.98 | |||||||
| Declination | 23 56 40.99 (0.04) | 23 56 41.43 | 23 56 41.01 (0.06) | 23 56 40.99 | 23 56 41.74 (0.04) | 23 56 30.48 | 23 56 41.46 | |||||||
| Spectral type | DA | DA | DA | DA1.6 | DA2 | DA | DA | |||||||
| Effective temperature | [K] | 31365.0 (106) | 31310.0 (482) | 30700.0 (481) | 33295.0 (1515) | 31382.0 (176) | ||||||||
| log(g) | [cgs] | 7.84 (0.03) | 7.89 (0.06) | 7.83 (0.06) | 7.99 (0.04) | 7.85 (0.02) | ||||||||
| Mass | [M☉] | 0.57 (0.01) | 0.6 (0.03) | 0.56 (0.03) | 0.648 (0.03) | 0.577 (0.009) | ||||||||
| log(Luminosity) | [L☉] | -0.71 (0.02) | -0.73 | |||||||||||
| Cooling age | [Gyr] | 0.0076 (0.0002) | 0.0095 | |||||||||||
| 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] | 4.51 (0.06) | 4.56 (0.09) | 4.51 | 4.51 (0.06) | |||||||||
| Distance | [pc] | 221.67 (3) | 219.49 (4) | 231.00 | 241.00 | 221.67 | 221.67 (3) | |||||||
| Composition | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -94.91829805 (0.07) | -94.83562682 (0.1) | -94.918 (0.07) | ||||||||||
| Proper motion (declination) | [mas/yr] | -47.10989707 (0.05) | -47.30241368 (0.1) | -47.11 (0.05) | ||||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | 16.80 | |||||||||||||
| V magnitude | 16.52 | |||||||||||||
| R magnitude | 17.10 | |||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | ||||||||||||||
| H magnitude | ||||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 15.94 (0.005) | 15.94 (0.005) | 15.97 (0.02) | |||||||||||
| g magnitude | 16.22 (0.004) | 16.22 (0.004) | 16.23 (0.03) | |||||||||||
| r magnitude | 16.69 (0.004) | 16.69 (0.004) | 16.69 (0.03) | |||||||||||
| i magnitude | 17.04 (0.005) | 17.04 (0.005) | 17.04 (0.03) | |||||||||||
| z magnitude | 17.38 (0.02) | 17.38 (0.02) | 17.39 (0.03) | |||||||||||
| G magnitude | 16.47 (0.005) | 16.49 | 16.47 | 16.47 (0.003) | ||||||||||
| BP magnitude | 16.33 (0.005) | 16.28 | ||||||||||||
| RP magnitude | 16.76 (0.01) | 16.76 | ||||||||||||
| Pan g magnitude | 16.27 (0.0003) | |||||||||||||
| Pan r magnitude | 16.71 (0.004) | |||||||||||||
| Pan i magnitude | 17.05 (0.006) | |||||||||||||
| Pan z magnitude | 17.36 (0.01) | |||||||||||||
| Pan y magnitude | 19.83 (0.2) | |||||||||||||
| E(B-V) | 0.015 | |||||||||||||
* 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.