All names: Gaia DR2 1031131006780256896, 2MASS J08374003+5543571, SDSS J083740.02+554357.4, SDSS J083740.02+554357.2, Gaia DR3 1031131006780256896, SDSS J083740.03+554357.4, Gaia EDR3 1031131006780256896, TIC 445037053, LAMOST J083740.02+554357.4, WD 0833+559, GALEX J083739.8+554356
| 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 | 08 37 40.05 (0.3) | 08 37 40.03 | 08 37 40.05 (0.3) | 08 37 40.03 | 08 37 40.03 (0.3) | 08 37 40.25 | |||
| Declination | 55 43 57.27 (0.2) | 55 43 57.27 | 55 43 57.27 (0.3) | 55 43 57.40 | 55 43 57.25 (0.2) | 55 43 54.12 | |||
| Spectral type | WD+M | D+dM2 | 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] | 1.13 (0.3) | 0.64 (0.4) | 1.13 (0.3) | |||||
| Distance | [pc] | 885.97 (246) | 1559.75 (1056) | 233.00 (21) | 885.98 (246) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 6.24464717 (0.3) | 6.862022188 (0.6) | 6.245 (0.3) | |||||
| Proper motion (declination) | [mas/yr] | 1.351897823 (0.3) | 4.348985602 (0.5) | 1.352 (0.3) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | ||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.57 (0.1) | ||||||||
| H magnitude | 15.94 (0.2) | ||||||||
| K magnitude | 15.92 (0.3) | ||||||||
| u magnitude | 21.32 (0.1) | 21.38 | 21.36 (0.1) | 21.37 | |||||
| g magnitude | 20.23 (0.02) | 20.24 | 20.23 (0.02) | 20.24 | |||||
| r magnitude | 19.15 (0.01) | 19.17 | 19.14 (0.01) | 19.16 | |||||
| i magnitude | 18.32 (0.01) | 18.30 | 18.31 (0.01) | 18.30 | |||||
| z magnitude | 17.90 (0.02) | 17.90 | 17.89 (0.02) | 17.89 | |||||
| G magnitude | 19.05 (0.04) | 19.05 | 19.05 (0.005) | ||||||
| BP magnitude | 19.85 (0.04) | 19.91 | |||||||
| RP magnitude | 17.99 (0.02) | 17.98 | |||||||
| Pan g magnitude | 20.09 (0.03) | ||||||||
| Pan r magnitude | 19.15 (0.01) | ||||||||
| Pan i magnitude | 18.37 (0.004) | ||||||||
| Pan z magnitude | 17.99 (0.007) | ||||||||
| Pan y magnitude | 17.80 (0.02) | ||||||||
| E(B-V) | 0.038 | ||||||||
* 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.