All names: WD 0620+825, Gaia DR2 1143670114986936576, [SGR2010] J0631+8228, SDSS J063139.13+822827.8, SDSS J063139.14+822827.8, SDSS J063139.14+822827.9, Gaia EDR3 1143670114986936576, TIC 289938902, 2MASS J06313916+8228279, WISEA J063139.24+822828.0, WISE J063139.16+822828.1, WIRED J063139.13+822827.8
| 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 | 06 31 39.06 (15) | 06 31 39.15 | 06 31 39.07 (29) | 06 31 39.14 | 06 31 39.15 | 06 31 39.10 | 06 31 39.14 | |||
| Declination | 82 28 27.71 (9) | 82 28 27.92 | 82 28 27.69 (23) | 82 28 27.88 | 82 28 27.92 | 82 28 23.88 | 82 28 27.89 | |||
| Spectral type | DA+M | DA+M3 | DA2.0+M3 | DA+M | ||||||
| Effective temperature | [K] | 23343.0 (112) | 6300.0 (4) | |||||||
| log(g) | [cgs] | 7.81 (0.2) | 5.00 (0.009) | |||||||
| Mass | [M☉] | 0.53 (0.09) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | |||||||||
| Distance | [pc] | 769.00 (82) | ||||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | |||||||||
| Proper motion (declination) | [mas/yr] | |||||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | yes | WDMS | |||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 16.00 (0.09) | |||||||||
| H magnitude | 15.34 (0.1) | |||||||||
| K magnitude | 15.60 (0.2) | |||||||||
| u magnitude | 19.22 (0.03) | 19.29 | 19.22 (0.03) | 19.24 | 19.29 (0.03) | |||||
| g magnitude | 19.00 (0.01) | 19.08 | 19.00 (0.01) | 19.03 | 19.08 (0.02) | |||||
| r magnitude | 18.75 (0.01) | 18.82 | 18.75 (0.01) | 18.74 | 18.82 (0.02) | |||||
| i magnitude | 17.92 (0.008) | 17.96 | 17.92 (0.008) | 17.89 | 17.96 (0.02) | |||||
| z magnitude | 17.36 (0.02) | 17.33 | 17.36 (0.02) | 17.29 | 17.33 (0.03) | |||||
| G magnitude | 19.46 | 19.48 | ||||||||
| BP magnitude | ||||||||||
| RP magnitude | ||||||||||
| Pan g magnitude | 19.04 (0.01) | |||||||||
| Pan r magnitude | 18.79 (0.009) | |||||||||
| Pan i magnitude | 17.93 (0.01) | |||||||||
| Pan z magnitude | 17.46 (0.003) | |||||||||
| Pan y magnitude | 17.17 (0.009) | |||||||||
| E(B-V) | 0.049 | |||||||||
* 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.