All names: Gaia DR3 944352601314027136, TIC 16480551, 2MASS J06481277+3810058, SDSS J064812.77+381005.9, [SGR2010] J0648+3810, Gaia DR2 944352601314027136, SDSS J064812.76+381005.9, WD 0644+382, Gaia EDR3 944352601314027136, GALEX J064812.7+381005
| 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 48 12.76 (0.2) | 06 48 12.76 | 06 48 12.76 (0.2) | 06 48 12.77 | 06 48 12.77 (0.2) | 06 48 12.22 | 06 48 12.77 | |||
| Declination | 38 10 05.77 (0.2) | 38 10 05.89 | 38 10 05.78 (0.2) | 38 10 05.92 | 38 10 05.98 (0.2) | 38 10 01.92 | 38 10 05.92 | |||
| Spectral type | DA+M | DA+M1 | DA2.6+M1 | DA+M | ||||||
| Effective temperature | [K] | 19640.0 (669) | 6300.0 (3) | |||||||
| log(g) | [cgs] | 8.19 (0.3) | 5.00 (0.01) | |||||||
| Mass | [M☉] | 0.74 (0.2) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | -0.04 (0.2) | 0.53 (0.2) | 0.53 (0.2) | ||||||
| Distance | [pc] | 1881.30 (794) | 661.00 (136) | 1881.47 (794) | ||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -4.360170991 (0.3) | -4.061823465 (0.4) | -4.36 (0.3) | ||||||
| Proper motion (declination) | [mas/yr] | -13.21506934 (0.2) | -11.88316635 (0.3) | -13.215 (0.2) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | yes | WDMS | |||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 15.64 (0.07) | |||||||||
| H magnitude | 14.76 (0.07) | |||||||||
| K magnitude | 14.67 (0.09) | |||||||||
| u magnitude | 19.69 (0.03) | 19.73 | 19.70 (0.03) | 19.69 | 19.73 (0.03) | |||||
| g magnitude | 18.93 (0.008) | 18.99 | 18.93 (0.008) | 18.93 | 18.99 (0.01) | |||||
| r magnitude | 17.93 (0.007) | 17.96 | 17.93 (0.006) | 17.93 | 17.96 (0.01) | |||||
| i magnitude | 17.20 (0.006) | 17.22 | 17.20 (0.006) | 17.20 | 17.22 (0.01) | |||||
| z magnitude | 16.79 (0.01) | 16.80 | 16.79 (0.01) | 16.79 | 16.80 (0.02) | |||||
| G magnitude | 17.88 (0.03) | 17.87 | 17.88 (0.005) | |||||||
| BP magnitude | 18.60 (0.03) | 18.56 | ||||||||
| RP magnitude | 16.85 (0.009) | 16.84 | ||||||||
| Pan g magnitude | 18.86 (0.007) | |||||||||
| Pan r magnitude | 17.95 (0.003) | |||||||||
| Pan i magnitude | 17.24 (0.003) | |||||||||
| Pan z magnitude | 16.90 (0.005) | |||||||||
| Pan y magnitude | 16.71 (0.006) | |||||||||
| E(B-V) | 0.101 | |||||||||
* 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.