All names: GALEX J075721.1+323054, 2MASS J07572107+3230545, Gaia DR3 881147660723855488, [HHD2009] SDSS J0757+3230, SDSS J075721.08+323054.4, SDSS J075721.07+323054.4, WD 0754+326, SDSS J075721.08+323054.3, WIRED J075721.07+323054.4, Gaia EDR3 881147660723855488, LAMOST J075721.08+323054.3, TIC 462516031, Gaia DR2 881147660723855488, [SGR2010] J0757+3230
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Guo et al. 2015 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 57 21.10 (0.8) | 07 57 21.08 | 07 57 21.10 (0.8) | 07 57 21.07 | 07 57 21.10 (0.8) | 07 57 21.07 | 07 57 21.10 | 07 57 21.07 | ||||
| Declination | 32 30 54.30 (0.6) | 32 30 54.39 | 32 30 54.30 (0.6) | 32 30 54.40 | 32 30 54.30 (0.6) | 32 30 54.47 | 32 30 48.96 | 32 30 54.42 | ||||
| Spectral type | DA+M | DA+M | DA+dMe | DA+M | DA dM | DA+M | ||||||
| Effective temperature | [K] | 20804.0 (173) | 22450.0 (160) | 23290.0 (161) | ||||||||
| log(g) | [cgs] | 7.76 (0.03) | 6.97 (0.02) | 7.02 (0.02) | ||||||||
| Mass | [M☉] | 0.5 (0.01) | ||||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | |||||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| Parallax | [mas] | |||||||||||
| Distance | [pc] | 3289.00 (1531) | ||||||||||
| Composition | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 10.0 (3) | 11.1 | |||||||||
| Proper motion (declination) | [mas/yr] | -18.0 (3) | -17.9 | |||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | WDMS | WDMS | |||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 13.62 (0.03) | |||||||||||
| H magnitude | 13.06 (0.04) | |||||||||||
| K magnitude | 12.89 (0.03) | |||||||||||
| u magnitude | 16.68 (0.007) | 16.72 | 16.71 (0.007) | 16.72 (0.02) | 16.72 | 16.72 (0.02) | ||||||
| g magnitude | 16.35 (0.004) | 16.36 | 16.36 (0.004) | 16.36 (0.01) | 16.36 | 16.36 (0.01) | ||||||
| r magnitude | 16.00 (0.004) | 16.01 | 16.01 (0.004) | 16.01 (0.02) | 16.01 | 16.00 (0.02) | ||||||
| i magnitude | 15.30 (0.004) | 15.28 | 15.31 (0.004) | 15.28 (0.02) | 15.28 | 15.27 (0.02) | ||||||
| z magnitude | 14.81 (0.005) | 14.82 | 14.81 (0.005) | 14.81 (0.01) | 14.82 | 14.81 (0.01) | ||||||
| G magnitude | 15.81 (0.007) | 15.73 | 15.81 (0.009) | |||||||||
| BP magnitude | 16.26 (0.007) | 16.25 | ||||||||||
| RP magnitude | 14.88 (0.003) | 14.90 | ||||||||||
| Pan g magnitude | 16.34 (0.002) | |||||||||||
| Pan r magnitude | 16.02 (0.003) | |||||||||||
| Pan i magnitude | 15.31 (0.002) | |||||||||||
| Pan z magnitude | 14.90 (0.003) | |||||||||||
| Pan y magnitude | 14.69 (0.003) | |||||||||||
| E(B-V) | 0.039 | |||||||||||
* 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.