All names: [HHD2009] SDSS J1040+2525, WD 1037+256, Gaia DR3 724616061496025984, LAMOST J104012.99+252559.9, GALEX J104012.9+252600, [SGR2010] J1040+2525, 2MASS J10401302+2525599, SDSS J104012.99+252559.9, SDSS J104012.96+252559.9, Gaia EDR3 724616061496025984, Gaia DR2 724616061496025984, WIRED J104012.99+252559.9, TIC 82262807
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Guo et al. 2015 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 40 12.95 (0.1) | 10 40 12.99 | 10 40 12.96 (0.2) | 10 40 12.99 | 10 40 13.01 (0.1) | 10 40 12.84 | 10 40 12.99 | |||||
| Declination | 25 25 59.88 (0.1) | 25 25 59.93 | 25 25 59.88 (0.1) | 25 25 59.92 | 25 25 59.96 (0.1) | 25 25 55.92 | 25 25 59.93 | |||||
| Spectral type | DA+M | DA+M | DA+M | DA dM | DA+M | DA+MS | ||||||
| Effective temperature | [K] | 10073.0 (81) | 9401.0 (44) | |||||||||
| log(g) | [cgs] | 8.11 (0.1) | 7.56 (0.07) | |||||||||
| Mass | [M☉] | 0.67 (0.07) | ||||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | |||||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| Parallax | [mas] | 4.93 (0.1) | 5.01 (0.2) | 4.93 (0.1) | ||||||||
| Distance | [pc] | 202.90 (6) | 199.60 (8) | 852.00 (168) | 202.90 (6) | |||||||
| Composition | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -48.9271392 (0.1) | -49.10352289 (0.3) | -48.927 (0.1) | ||||||||
| Proper motion (declination) | [mas/yr] | -5.042475069 (0.1) | -5.588629722 (0.2) | -5.042 (0.1) | ||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | WDMS | WDMS | |||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 15.96 (0.1) | |||||||||||
| H magnitude | 15.36 (0.1) | |||||||||||
| K magnitude | 15.12 (0.1) | |||||||||||
| u magnitude | 18.67 (0.02) | 18.70 | 18.67 (0.02) | 18.70 | 18.68 (0.03) | |||||||
| g magnitude | 18.14 (0.006) | 18.17 | 18.13 (0.006) | 18.17 | 18.14 (0.03) | |||||||
| r magnitude | 18.15 (0.007) | 18.18 | 18.15 (0.007) | 18.18 | 18.17 (0.02) | |||||||
| i magnitude | 17.86 (0.008) | 17.89 | 17.86 (0.008) | 17.89 | 17.87 (0.02) | |||||||
| z magnitude | 17.31 (0.02) | 17.34 | 17.31 (0.01) | 17.34 | 17.33 (0.03) | |||||||
| G magnitude | 17.93 (0.01) | 17.95 | 17.93 (0.003) | |||||||||
| BP magnitude | 18.18 (0.01) | 18.24 | ||||||||||
| RP magnitude | 17.41 (0.02) | 17.42 | ||||||||||
| Pan g magnitude | 18.12 (0.005) | |||||||||||
| Pan r magnitude | 18.15 (0.004) | |||||||||||
| Pan i magnitude | 17.86 (0.01) | |||||||||||
| Pan z magnitude | 17.47 (0.005) | |||||||||||
| Pan y magnitude | 17.12 (0.005) | |||||||||||
| E(B-V) | 0.015 | |||||||||||
* 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.