All names: GALEX J083143.0+120936, SDSS J083143.02+120936.0, Gaia EDR3 602783649084471936, WD 0828+123, TIC 20486585, 2MASS J08314302+1209360, SDSS J083143.01+120935.9, EPIC 211434324, Gaia DR3 602783649084471936, Gaia DR2 602783649084471936, [SGR2010] J0831+1209
| 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) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 31 43.01 (0.1) | 08 31 43.02 | 08 31 43.02 (0.2) | 08 31 43.02 | 08 31 43.02 (0.1) | 08 31 43.22 | 08 31 43.02 | |||
| Declination | 12 09 35.91 (0.09) | 12 09 36.00 | 12 09 35.91 (0.1) | 12 09 36.00 | 12 09 36.04 (0.09) | 12 09 30.60 | 12 09 35.99 | |||
| Spectral type | DA+M | DA+M1 | DA1.7+M1 | DA+M | ||||||
| Effective temperature | [K] | 29387.0 (913) | 6300.0 (3) | |||||||
| log(g) | [cgs] | 8.12 (0.2) | 10.00 (0.003) | |||||||
| Mass | [M☉] | 0.71 (0.1) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 1.48 (0.2) | 1.57 (0.2) | 1.48 (0.2) | ||||||
| Distance | [pc] | 677.59 (70) | 637.76 (83) | 313.00 (14) | 677.60 (70) | |||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -4.253377806 (0.2) | -4.721940611 (0.3) | -4.253 (0.2) | ||||||
| Proper motion (declination) | [mas/yr] | -8.184145101 (0.1) | -7.689776127 (0.2) | -8.184 (0.1) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | yes | WDMS | |||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 15.74 (0.07) | |||||||||
| H magnitude | 15.14 (0.09) | |||||||||
| K magnitude | 14.91 (0.1) | |||||||||
| u magnitude | 19.13 (0.02) | 19.14 | 19.14 (0.03) | 19.14 | 19.14 (0.03) | |||||
| g magnitude | 18.82 (0.009) | 18.82 | 18.82 (0.009) | 18.82 | 18.82 (0.02) | |||||
| r magnitude | 18.13 (0.007) | 18.14 | 18.13 (0.007) | 18.13 | 18.14 (0.02) | |||||
| i magnitude | 17.49 (0.006) | 17.50 | 17.50 (0.006) | 17.50 | 17.50 (0.01) | |||||
| z magnitude | 17.11 (0.01) | 17.11 | 17.12 (0.01) | 17.12 | 17.11 (0.02) | |||||
| G magnitude | 18.00 (0.03) | 18.02 | 18.00 (0.003) | |||||||
| BP magnitude | 18.74 (0.03) | 18.66 | ||||||||
| RP magnitude | 17.16 (0.01) | 17.17 | ||||||||
| Pan g magnitude | 18.83 (0.01) | |||||||||
| Pan r magnitude | 18.17 (0.003) | |||||||||
| Pan i magnitude | 17.53 (0.009) | |||||||||
| Pan z magnitude | 17.20 (0.007) | |||||||||
| Pan y magnitude | 17.00 (0.01) | |||||||||
| E(B-V) | 0.032 | |||||||||
* 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.