All names: SDSS J231256.41+005035.6, Gaia DR3 2657415734845533952, SDSS J231256.40+005035.6, SDSS J231256.41+005035.7, WD 2310+005, SDSS J231256.40+005035.7, Gaia EDR3 2657415734845533952, EPIC 251455483, Gaia DR2 2657415734845533952, GALEX J231256.3+005034, LAMOST J231256.40+005035.6, [HHD2009] SDSS J2312+0050
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 12 56.42 (0.3) | 23 12 56.42 | 23 12 56.42 (0.4) | 23 12 56.41 (0.3) | 23 12 56.41 | 23 12 55.61 | 23 12 56.41 | ||||
| Declination | 00 50 35.67 (0.3) | 00 50 35.72 | 00 50 35.68 (0.3) | 00 50 35.71 (0.3) | 00 50 35.71 | 00 50 31.92 | 00 50 35.66 | ||||
| Spectral type | DA+M | DA+M: | DA+M | DA+M | DA+MS | ||||||
| Effective temperature | [K] | 17343.0 (412) | 17809.0 (441) | ||||||||
| log(g) | [cgs] | 7.62 (0.1) | 7.67 (0.1) | ||||||||
| Mass | [M☉] | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 1.96 (0.4) | 1.33 (0.6) | 1.96 (0.4) | |||||||
| Distance | [pc] | 508.97 (113) | 752.76 (329) | 508.96 (113) | |||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 5.393045027 (0.4) | 7.060503298 (0.8) | 5.393 (0.4) | 6.2 | ||||||
| Proper motion (declination) | [mas/yr] | -2.054760269 (0.3) | -1.683249495 (0.7) | -2.055 (0.3) | -3.4 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | yes | WDMS | WDMS | |||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 18.14 (0.04) | ||||||||||
| H magnitude | 17.56 (0.1) | ||||||||||
| K magnitude | |||||||||||
| u magnitude | 19.58 (0.03) | 19.58 (0.03) | 19.51 (0.04) | 19.53 | 19.50 (0.04) | ||||||
| g magnitude | 19.33 (0.01) | 19.33 (0.01) | 19.49 (0.03) | 19.49 | 19.47 (0.03) | ||||||
| r magnitude | 19.58 (0.02) | 19.59 (0.01) | 19.65 (0.03) | 19.64 | 19.62 (0.03) | ||||||
| i magnitude | 19.63 (0.02) | 19.62 (0.02) | 19.67 (0.04) | 19.67 | 19.64 (0.04) | ||||||
| z magnitude | 19.29 (0.06) | 19.29 (0.06) | 19.45 (0.09) | 19.45 | 19.43 (0.09) | ||||||
| G magnitude | 19.42 (0.04) | 19.45 | 19.42 (0.005) | ||||||||
| BP magnitude | 19.47 (0.04) | 19.46 | |||||||||
| RP magnitude | 19.24 (0.04) | 19.26 | |||||||||
| Pan g magnitude | 19.38 (0.01) | ||||||||||
| Pan r magnitude | 19.64 (0.01) | ||||||||||
| Pan i magnitude | 19.61 (0.008) | ||||||||||
| Pan z magnitude | 19.41 (0.02) | ||||||||||
| Pan y magnitude | 19.10 (0.02) | ||||||||||
| E(B-V) | 0.050 | ||||||||||
* 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.