All names: Gaia DR2 696543403630612608, SDSS J094223.54+295327.8, SDSS J094223.53+295327.7, GALEX J094223.5+295328, SDSS J094223.54+295327.7, Gaia DR3 696543403630612608, WD 0939+301, Gaia EDR3 696543403630612608, 2MASS J09422354+2953275, TIC 233431646
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 42 23.53 (0.1) | 09 42 23.54 | 09 42 23.53 (0.2) | 09 42 23.54 | 09 42 23.54 (0.1) | 09 42 23.74 | |||
| Declination | 29 53 27.68 (0.1) | 29 53 27.76 | 29 53 27.68 (0.2) | 29 53 27.82 | 29 53 27.71 (0.1) | 29 53 22.92 | |||
| Spectral type | WD+M | D+M | WD M | ||||||
| Effective temperature | [K] | ||||||||
| log(g) | [cgs] | ||||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 2.04 (0.2) | 2.13 (0.2) | 2.04 (0.2) | |||||
| Distance | [pc] | 489.85 (40) | 468.59 (50) | 506.00 (43) | 489.86 (40) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -14.26851039 (0.2) | -13.47638827 (0.3) | -14.269 (0.2) | |||||
| Proper motion (declination) | [mas/yr] | -2.067696251 (0.1) | -1.454412859 (0.3) | -2.068 (0.1) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | ||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 15.54 (0.07) | ||||||||
| H magnitude | 14.82 (0.07) | ||||||||
| K magnitude | 14.49 (0.1) | ||||||||
| u magnitude | 21.17 (0.09) | 21.16 | 21.14 (0.1) | 21.16 | |||||
| g magnitude | 19.44 (0.01) | 19.48 | 19.43 (0.01) | 19.48 | |||||
| r magnitude | 18.15 (0.007) | 18.18 | 18.15 (0.01) | 18.18 | |||||
| i magnitude | 17.19 (0.006) | 17.19 | 17.19 (0.01) | 17.19 | |||||
| z magnitude | 16.61 (0.008) | 16.62 | 16.60 (0.01) | 16.62 | |||||
| G magnitude | 17.87 (0.02) | 17.89 | 17.87 (0.003) | ||||||
| BP magnitude | 18.95 (0.02) | 18.95 | |||||||
| RP magnitude | 16.76 (0.006) | 16.78 | |||||||
| Pan g magnitude | 19.27 (0.01) | ||||||||
| Pan r magnitude | 18.18 (0.008) | ||||||||
| Pan i magnitude | 17.19 (0.005) | ||||||||
| Pan z magnitude | 16.75 (0.003) | ||||||||
| Pan y magnitude | 16.51 (0.007) | ||||||||
| E(B-V) | 0.019 | ||||||||
* 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.