All names: uvby98 680094016, Gaia DR2 3853346290335592320, UCAC4 483-049836, PG 0940+068, WD 0940+068, Gaia DR3 3853346290335592320, TIC 389175842, SDSS J094255.04+063537.1, GALEX J094255.0+063535, 2MASS J09425502+0635373, Gaia EDR3 3853346290335592320, PG0940+068, LAMOST J094255.04+063537.6, SBC9 2375, UCAC2 34107734
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Geier 2020 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 42 55.05 (0.04) | 09 42 55.00 | 09 42 55.05 (0.07) | 09 42 55.04 (0.04) | 09 42 54.22 | |||
| Declination | 06 35 37.10 (0.03) | 06 35 37.39 | 06 35 37.11 (0.06) | 06 35 37.19 (0.03) | 06 35 33.00 | |||
| Spectral type | sdB+WD | sdB | sdOB/WD | |||||
| Effective temperature | [K] | 27749.0 (303) | ||||||
| log(g) | [cgs] | 5.39 (0.04) | ||||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 1.22 (0.04) | 1.24 (0.08) | 1.24 (0.08) | 1.22 (0.04) | |||
| Distance | [pc] | 821.54 (29) | 803.60 (50) | 803.60 (50) | 821.56 (29) | |||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | 8.556896848 (0.05) | 8.836 (0.1) | 8.836162849 (0.1) | 8.557 (0.05) | |||
| Proper motion (declination) | [mas/yr] | -5.41208031 (0.04) | -5.068 (0.1) | -5.068067484 (0.1) | -5.412 (0.04) | |||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | yes | |||||||
| B magnitude | 13.50 (0.03) | |||||||
| V magnitude | 13.69 (0.03) | |||||||
| R magnitude | 14.01 (0.1) | |||||||
| I magnitude | ||||||||
| J magnitude | 14.15 (0.03) | 14.15 (0.03) | ||||||
| H magnitude | 14.15 (0.05) | 14.15 (0.05) | ||||||
| K magnitude | 14.19 (0.05) | 14.19 (0.05) | ||||||
| u magnitude | 14.28 (0.005) | |||||||
| g magnitude | ||||||||
| r magnitude | 13.35 (0.001) | |||||||
| i magnitude | 14.84 (0.006) | |||||||
| z magnitude | 14.61 (0.005) | |||||||
| G magnitude | 13.67 (0.0009) | 13.68 (0.0008) | 13.68 | 13.67 (0.003) | ||||
| BP magnitude | 13.54 (0.0009) | 13.50 (0.01) | 13.50 | |||||
| RP magnitude | 13.90 (0.0009) | 13.90 (0.003) | 13.90 | |||||
| Pan g magnitude | 13.53 (0.02) | 13.53 (0.02) | ||||||
| Pan r magnitude | 13.94 (0.005) | 13.95 (0.005) | ||||||
| Pan i magnitude | 14.25 (0.0003) | 14.25 (0.0003) | ||||||
| Pan z magnitude | 14.50 (0.002) | 14.50 (0.002) | ||||||
| Pan y magnitude | 14.64 (0.003) | 14.64 (0.003) | ||||||
| E(B-V) | 0.026 | |||||||
* 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.