All names: 2MASS J09570594+6152547, GALEX J095705.9+615254, [HHD2009] SDSS J0957+6152, SDSS J095705.99+615254.1, TIC 287165952, Gaia DR2 1051167102231482112, SDSS J095706.00+615254.1, Gaia EDR3 1051167102232179840, WD 0953+621, WIRED J095706.00+615254.1, SDSS J095706.00+615254.2, SDSS J095705.99+615254.2, SDSS J095706.00+615254.3
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | Gaia DR2 | Tremblay et al. 2011 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 57 05.99 (0.9) | 09 57 06.00 | 09 57 05.99 (1) | 09 57 05.99 (1) | 09 57 06.01 | 09 57 05.78 | 09 57 06.00 | ||||
| Declination | 61 52 54.09 (1) | 61 52 54.27 | 61 52 54.09 (2) | 61 52 54.09 (2) | 61 52 54.31 | 61 52 48.72 | 61 52 54.18 | ||||
| Spectral type | DA+M | DA | DA+dM | DA+M | DA+M | DA+M | |||||
| Effective temperature | [K] | 37944.0 (1328) | 40160.0 (2130) | 6306.0 (10) | 6300.0 (2) | ||||||
| log(g) | [cgs] | 7.66 (0.2) | 7.72 (0.2) | 7.73 (0.2) | 5.05 (0.07) | ||||||
| Mass | [M☉] | 0.51 (0.07) | 0.55 (0.1) | ||||||||
| log(Luminosity) | [L☉] | -0.25 (0.1) | |||||||||
| Cooling age | [Gyr] | 0.0037 (0.001) | 0.0046 | ||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| log(C/H) | |||||||||||
| log(N/H) | |||||||||||
| log(O/H) | |||||||||||
| log(Na/H) | |||||||||||
| log(Mg/H) | |||||||||||
| log(Al/H) | |||||||||||
| log(Si/H) | |||||||||||
| log(P/H) | |||||||||||
| log(S/H) | |||||||||||
| log(Sc/H) | |||||||||||
| log(Ti/H) | |||||||||||
| log(Cr/H) | |||||||||||
| log(Mn/H) | |||||||||||
| log(Fe/H) | |||||||||||
| log(Ni/H) | |||||||||||
| Parallax | [mas] | ||||||||||
| Distance | [pc] | ||||||||||
| Composition | H | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -10.0 (3) | -9.6 | ||||||||
| Proper motion (declination) | [mas/yr] | -10.0 (3) | -9.5 | ||||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | |||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.43 (0.1) | ||||||||||
| H magnitude | 15.80 (0.2) | ||||||||||
| K magnitude | 15.25 (0.09) | ||||||||||
| u magnitude | 18.59 (0.02) | 18.53 (0.02) | 18.55 (0.03) | 18.59 | 18.60 (0.03) | ||||||
| g magnitude | 18.79 (0.009) | 18.79 (0.009) | 18.83 (0.03) | 18.83 | 18.84 (0.03) | ||||||
| r magnitude | 18.79 (0.01) | 18.79 (0.01) | 18.85 (0.02) | 18.84 | 18.85 (0.02) | ||||||
| i magnitude | 18.19 (0.009) | 18.19 (0.009) | 18.22 (0.02) | 18.22 | 18.23 (0.02) | ||||||
| z magnitude | 17.72 (0.02) | 17.72 (0.02) | 17.77 (0.03) | 17.75 | 17.78 (0.03) | ||||||
| G magnitude | 19.16 (0.02) | 19.02 | 19.02 (0.01) | ||||||||
| BP magnitude | 18.76 (0.02) | 18.82 | |||||||||
| RP magnitude | 17.82 (0.01) | 17.87 | |||||||||
| Pan g magnitude | 18.79 (0.0006) | ||||||||||
| Pan r magnitude | 18.80 (0.01) | ||||||||||
| Pan i magnitude | 18.24 (0.004) | ||||||||||
| Pan z magnitude | 17.86 (0.01) | ||||||||||
| Pan y magnitude | 17.63 (0.009) | ||||||||||
| E(B-V) | |||||||||||
* 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.