All names: Gaia DR3 826303952010148224, 1RXS J094021.7+502116, SDSS J094022.66+502105.9, RE J094021+502049, SDSS J094022.66+502105.8, SDSS J094022.64+502105.8, 2MASS J09402266+5021049, 2RE J094021+502102, SDSS J094022.65+502105.9, RX J0940.3+5021, EUVE J0940+50.3, Gaia DR2 826303952010148224, SBSS 0937+505, PG 0937+506, TIC 357133468, WD 0937+505, SDSS J094022.65+502105.8, RE J0940+502, [ZEH2003] RX J0940.3+5021 1, 2EUVE J0940+50.3, RX J0940.4+5021, Gaia EDR3 826303952010148224, 2RE J0940+502
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Tremblay et al. 2011 | Vincent et al. 2024 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 40 22.64 (0.03) | 09 40 22.65 | 09 40 22.64 (0.04) | 09 40 22.64 | 09 40 22.66 (0.03) | 09 40 22.65 | 09 40 21.55 | 09 40 22.66 | |||||||
| Declination | 50 21 05.64 (0.03) | 50 21 05.87 | 50 21 05.65 (0.04) | 50 21 05.64 | 50 21 05.88 (0.03) | 50 21 05.88 | 50 21 10.44 | 50 21 05.89 | |||||||
| Spectral type | DA | DA | DA | DA | DA1.4 | DA_auto | DA1 | DA | DA | ||||||
| Effective temperature | [K] | 36497.0 (161) | 36370.0 (536) | 36750.0 (210) | 44078.0 (2486) | 36681.0 (240) | 36923.0 (243) | ||||||||
| log(g) | [cgs] | 7.76 (0.02) | 7.95 (0.05) | 7.76 (0.03) | 8.00 (0.03) | 7.80 (0.03) | 7.79 (0.03) | ||||||||
| Mass | [M☉] | 0.54 (0.01) | 0.64 (0.02) | 0.55 (0.01) | 0.677 (0.02) | 0.565 (0.01) | |||||||||
| log(Luminosity) | [L☉] | -0.38 (0.02) | |||||||||||||
| Cooling age | [Gyr] | 0.0048 (0.0001) | 0.0051 | ||||||||||||
| 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] | 4.76 (0.05) | 4.80 (0.07) | 4.76 | 4.76 (0.05) | ||||||||||
| Distance | [pc] | 209.95 (2) | 208.25 (3) | 198.00 | 209.95 | 209.95 (2) | |||||||||
| Composition | H | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -11.34515256 (0.04) | -11.31040085 (0.09) | -11.345 (0.04) | -10.9 | ||||||||||
| Proper motion (declination) | [mas/yr] | -15.26118964 (0.04) | -15.39755925 (0.09) | -15.261 (0.04) | -15.7 | ||||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | |||||||||||||||
| B magnitude | 16.06 | ||||||||||||||
| V magnitude | |||||||||||||||
| R magnitude | |||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | 16.62 (0.1) | ||||||||||||||
| H magnitude | |||||||||||||||
| K magnitude | 16.05 (0.3) | ||||||||||||||
| u magnitude | 15.36 (0.005) | 15.36 (0.005) | 15.36 (0.01) | 15.35 | 15.35 (0.01) | ||||||||||
| g magnitude | 15.69 (0.004) | 15.69 (0.004) | 15.70 (0.01) | 15.70 | 15.70 (0.01) | ||||||||||
| r magnitude | 16.18 (0.005) | 16.18 (0.005) | 16.19 (0.01) | 16.19 | 16.18 (0.01) | ||||||||||
| i magnitude | 16.54 (0.006) | 16.54 (0.006) | 16.56 (0.01) | 16.56 | 16.54 (0.01) | ||||||||||
| z magnitude | 16.88 (0.01) | 16.88 (0.01) | 16.89 (0.01) | 16.90 | 16.86 (0.02) | ||||||||||
| G magnitude | 15.94 (0.004) | 15.95 | 15.94 | 15.94 (0.003) | |||||||||||
| BP magnitude | 15.78 (0.004) | 15.71 | |||||||||||||
| RP magnitude | 16.25 (0.004) | 16.24 | |||||||||||||
| Pan g magnitude | 15.75 (0.001) | ||||||||||||||
| Pan r magnitude | 16.19 (0.002) | ||||||||||||||
| Pan i magnitude | 16.56 (0.002) | ||||||||||||||
| Pan z magnitude | 16.87 (0.004) | ||||||||||||||
| Pan y magnitude | 17.05 (0.008) | ||||||||||||||
| E(B-V) | 0.013 | ||||||||||||||
* 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.