All names: LAMOST J123747.53+290822.1, Gaia EDR3 4011093842048361216, GALEX J123747.5+290822, SDSS J123747.53+290822.1, Ton 626, GSC2.3 N5AI004031, SDSS J123747.53+290822.2, SDSS J123747.56+290821.9, Gaia DR2 4011093842048361216, CSO 154, KUV 12353+2925, WD 1235+294, USNO-B1.0 1191-00202493, WD 1235+321, Gaia DR3 4011093842048361216
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 37 47.58 (0.07) | 12 37 47.53 | 12 37 47.58 (0.1) | 12 37 47.58 | 12 37 47.52 (0.07) | 12 37 47.81 | 12 37 47.53 | ||||||
| Declination | 29 08 21.84 (0.06) | 29 08 22.12 | 29 08 21.85 (0.08) | 29 08 21.84 | 29 08 22.17 (0.06) | 29 08 18.60 | 29 08 22.19 | ||||||
| Spectral type | DA | DA | DA | DA2.6 | DA | DA | DA | ||||||
| Effective temperature | [K] | 17266.0 | 19400.0 (358) | 18852.0 (616) | 19520.0 (129) | ||||||||
| log(g) | [cgs] | 7.74 | 7.95 (0.06) | 7.85 (0.04) | 7.91 (0.02) | ||||||||
| Mass | [M☉] | 0.48 | 0.59 (0.03) | 0.54 (0.03) | 0.577 (0.009) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.0753 | |||||||||||
| 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] | 4.97 (0.1) | 4.92 (0.2) | 4.97 | 4.97 (0.1) | ||||||||
| Distance | [pc] | 201.36 (4) | 203.08 (7) | 141.00 | 201.36 | 201.36 (4) | |||||||
| Composition | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 47.76018765 (0.08) | 47.62467818 (0.2) | 47.76 (0.08) | |||||||||
| Proper motion (declination) | [mas/yr] | -20.81277751 (0.1) | -20.81185753 (0.1) | -20.813 (0.1) | |||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 17.40 | ||||||||||||
| V magnitude | 17.29 | ||||||||||||
| R magnitude | 17.40 | ||||||||||||
| I magnitude | 17.39 (0.4) | ||||||||||||
| J magnitude | |||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 17.08 (0.008) | 17.09 (0.008) | 17.13 (0.02) | ||||||||||
| g magnitude | 17.00 (0.004) | 17.00 (0.004) | 17.05 (0.03) | ||||||||||
| r magnitude | 17.38 (0.005) | 17.38 (0.005) | 17.37 (0.02) | ||||||||||
| i magnitude | 17.67 (0.007) | 17.68 (0.007) | 17.69 (0.01) | ||||||||||
| z magnitude | 17.97 (0.02) | 17.97 (0.02) | 17.98 (0.03) | ||||||||||
| G magnitude | 17.20 (0.006) | 17.22 | 17.20 | 17.20 (0.003) | |||||||||
| BP magnitude | 17.14 (0.006) | 17.11 | |||||||||||
| RP magnitude | 17.38 (0.01) | 17.38 | |||||||||||
| Pan g magnitude | 17.06 (0.005) | ||||||||||||
| Pan r magnitude | 17.38 (0.006) | ||||||||||||
| Pan i magnitude | 17.68 (0.005) | ||||||||||||
| Pan z magnitude | 17.93 (0.005) | ||||||||||||
| Pan y magnitude | 18.10 (0.01) | ||||||||||||
| E(B-V) | 0.009 | ||||||||||||
* 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.