All names: Gaia DR2 2645253693133401856, SDSS J231814.73+003430.3, GALEX J231814.7+003431, Gaia DR3 2645253693133401856, WIRED J231814.73+003430.3, 2MASS J23181475+0034299, Gaia EDR3 2645253693133401856, TIC 262715610, WD 2315+003
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 18 14.77 (0.3) | 23 18 14.74 | 23 18 14.77 (0.5) | 23 18 14.73 | 23 18 14.73 (0.3) | 23 18 14.74 | 23 18 14.66 | 23 18 14.73 | |||
| Declination | 00 34 30.40 (0.2) | 00 34 30.33 | 00 34 30.40 (0.3) | 00 34 30.29 | 00 34 30.34 (0.2) | 00 34 30.31 | 00 34 30.72 | 00 34 30.34 | |||
| Spectral type | DA+M | DA+M | DA+M | DA | DA+M | ||||||
| Effective temperature | [K] | 16059.0 (1681) | 6301.0 (4) | 6301.0 (4) | |||||||
| log(g) | [cgs] | 7.74 (0.4) | 7.16 (0.3) | 5.18 (0.2) | |||||||
| Mass | [M☉] | 0.475 (0.2) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 2.01 (0.3) | 2.54 (0.4) | 2.01 (0.3) | |||||||
| Distance | [pc] | 498.60 (69) | 393.14 (62) | 498.60 (69) | |||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 40.5102816 (0.3) | 40.31324454 (1) | 40.51 (0.3) | 41.9 | ||||||
| Proper motion (declination) | [mas/yr] | 3.389742303 (0.3) | 3.485023313 (0.5) | 3.39 (0.3) | -0.2 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.81 (0.01) | ||||||||||
| H magnitude | 16.26 (0.03) | ||||||||||
| K magnitude | 16.07 (0.04) | ||||||||||
| u magnitude | 20.36 (0.04) | 20.38 | 20.36 (0.04) | 20.38 (0.07) | 20.38 | 20.39 (0.07) | |||||
| g magnitude | 19.77 (0.01) | 19.79 | 19.77 (0.01) | 19.79 (0.05) | 19.79 | 19.79 (0.05) | |||||
| r magnitude | 19.44 (0.01) | 19.41 | 19.45 (0.01) | 19.41 (0.02) | 19.41 | 19.41 (0.02) | |||||
| i magnitude | 18.67 (0.01) | 18.62 | 18.67 (0.01) | 18.62 (0.02) | 18.62 | 18.62 (0.02) | |||||
| z magnitude | 18.06 (0.02) | 18.10 | 18.07 (0.02) | 18.10 (0.03) | 18.09 | 18.09 (0.03) | |||||
| G magnitude | 19.09 (0.05) | 19.12 | 19.09 (0.004) | ||||||||
| BP magnitude | 19.85 (0.05) | 19.76 | |||||||||
| RP magnitude | 18.26 (0.02) | 18.26 | |||||||||
| Pan g magnitude | 19.75 (0.007) | ||||||||||
| Pan r magnitude | 19.43 (0.01) | ||||||||||
| Pan i magnitude | 18.66 (0.005) | ||||||||||
| Pan z magnitude | 18.19 (0.008) | ||||||||||
| Pan y magnitude | 17.97 (0.02) | ||||||||||
| E(B-V) | 0.048 | ||||||||||
* 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.