All names: GALEX J024642.5+004136, Gaia EDR3 2499031084864744448, SDSS J024642.58+004136.8, SDSS J024642.55+004137.2, Gaia DR3 2499031084864744448, LAMOST J024642.55+004137.2, Gaia DR2 2499031084864744448, SDSS J024642.56+004137.1, WD 0244+004, 2MASS J02464256+0041372, WIRED J024642.56+004137.1, TIC 318868287
| 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 | 02 46 42.58 (0.1) | 02 46 42.56 | 02 46 42.58 (0.2) | 02 46 42.55 | 02 46 42.56 (0.1) | 02 46 42.56 | 02 46 42.19 | 02 46 42.55 | |||
| Declination | 00 41 36.92 (0.1) | 00 41 37.07 | 00 41 36.92 (0.1) | 00 41 37.21 | 00 41 37.12 (0.1) | 00 41 37.12 | 00 41 32.28 | 00 41 37.21 | |||
| Spectral type | DA+M | dMe+DA | DA+M | DA+M | DA+M | ||||||
| Effective temperature | [K] | 16967.0 (1080) | 6300.0 (1) | 6300.0 (3) | |||||||
| log(g) | [cgs] | 8.56 (0.2) | 8.74 (0.1) | 10.00 (0.003) | |||||||
| Mass | [M☉] | 0.95 (0.1) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 2.66 (0.1) | 2.67 (0.2) | 2.66 (0.1) | |||||||
| Distance | [pc] | 376.11 (19) | 375.05 (26) | 376.11 (19) | |||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 17.40796997 (0.2) | 17.81217924 (0.3) | 17.408 (0.2) | 18.3 | ||||||
| Proper motion (declination) | [mas/yr] | -12.64424063 (0.1) | -12.35336682 (0.3) | -12.644 (0.1) | -15.3 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 15.15 (0.004) | ||||||||||
| H magnitude | 14.58 (0.004) | ||||||||||
| K magnitude | 14.30 (0.006) | ||||||||||
| u magnitude | 20.02 (0.04) | 19.99 | 20.04 (0.04) | 19.99 (0.05) | 19.96 | 20.00 (0.05) | |||||
| g magnitude | 19.21 (0.01) | 19.23 | 19.22 (0.01) | 19.23 (0.03) | 19.23 | 19.23 (0.02) | |||||
| r magnitude | 18.44 (0.008) | 18.42 | 18.37 (0.008) | 18.42 (0.03) | 18.43 | 18.41 (0.02) | |||||
| i magnitude | 17.31 (0.006) | 17.29 | 17.30 (0.006) | 17.29 (0.02) | 17.30 | 17.28 (0.02) | |||||
| z magnitude | 16.60 (0.009) | 16.60 | 16.59 (0.009) | 16.60 (0.03) | 16.60 | 16.57 (0.03) | |||||
| G magnitude | 17.91 (0.03) | 17.93 | 17.91 (0.003) | ||||||||
| BP magnitude | 18.97 (0.03) | 19.00 | |||||||||
| RP magnitude | 16.84 (0.008) | 16.85 | |||||||||
| Pan g magnitude | 19.06 (0.009) | ||||||||||
| Pan r magnitude | 18.41 (0.006) | ||||||||||
| Pan i magnitude | 17.33 (0.005) | ||||||||||
| Pan z magnitude | 16.70 (0.005) | ||||||||||
| Pan y magnitude | 16.39 (0.01) | ||||||||||
| E(B-V) | 0.029 | ||||||||||
* 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.