All names: SBSS 0933+495, Gaia EDR3 826139742524515584, GALEX J093714.6+491642, SBSS 0934+495, SDSSJ093714.66+491642.8, SDSS J093714.66+491642.7, Gaia DR3 826139742524515584, Gaia DR2 826139742524515584, SDSS J093714.66+491642.8
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 37 14.66 (0.1) | 09 37 14.66 | 09 37 14.66 | 09 37 14.66 (0.2) | 09 37 14.66 (0.1) | 09 37 14.66 | |||
| Declination | 49 16 42.72 (0.1) | 49 16 42.78 | 49 16 42.80 | 49 16 42.72 (0.2) | 49 16 42.79 (0.1) | 49 16 42.80 | |||
| Spectral type | He-sdO | sdO | SDO | ||||||
| Effective temperature | [K] | 49147.0 (5000) | 50400.0 (3175) | ||||||
| log(g) | [cgs] | 5.37 (0.2) | 5.20 (0.2) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.20 (0.2) | -0.20 (0.3) | -0.20 (0.3) | 0.20 (0.2) | ||||
| Distance | [pc] | 5056.02 (4877) | 5055.61 (4877) | ||||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 0.871586443 (0.2) | -0.345 (0.4) | -0.344926991 (0.4) | 0.872 (0.2) | -2.3 | |||
| Proper motion (declination) | [mas/yr] | -4.290851533 (0.2) | -4.212 (0.4) | -4.212477184 (0.4) | -4.291 (0.2) | -10.2 | |||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 18.50 | ||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 18.18 (0.01) | 18.18 (0.01) | 18.21 (0.02) | 18.20 (0.02) | |||||
| g magnitude | 18.60 (0.008) | 18.60 (0.008) | 18.60 (0.008) | 18.64 (0.03) | |||||
| r magnitude | 19.11 (0.01) | 19.11 (0.01) | 19.15 (0.03) | 19.16 (0.03) | |||||
| i magnitude | 19.40 (0.02) | 19.40 (0.02) | 19.45 (0.03) | 19.46 (0.03) | |||||
| z magnitude | 19.57 (0.08) | 19.57 (0.08) | 19.57 (0.08) | 19.59 (0.08) | |||||
| G magnitude | 18.91 (0.01) | 18.96 (0.003) | 18.96 | 18.91 (0.003) | |||||
| BP magnitude | 18.77 (0.01) | 18.62 (0.02) | 18.62 | ||||||
| RP magnitude | 19.05 (0.04) | 18.98 (0.04) | 18.98 | ||||||
| Pan g magnitude | 18.71 (0.01) | 18.71 (0.01) | |||||||
| Pan r magnitude | 19.16 (0.008) | 19.16 (0.008) | |||||||
| Pan i magnitude | 19.47 (0.01) | 19.47 (0.01) | |||||||
| Pan z magnitude | 19.81 (0.02) | 19.81 (0.02) | |||||||
| Pan y magnitude | 19.98 (0.1) | 19.98 (0.1) | |||||||
| E(B-V) | 0.020 | ||||||||
* 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.