All names: SDSS J142557.28+442554.1, SDSS J142557.28+442554.2, [SGR2010] J1425+4425, TIC 158023471, GALEX J142557.2+442555, WD 1424+446, Gaia DR2 1492870747362070784, SDSS J142557.29+442554.0, 2MASS J14255728+4425539, Gaia EDR3 1492870747362493312, Gaia DR3 1492870747362493312
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 25 57.29 (0.1) | 14 25 57.28 | 14 25 57.29 (0.2) | 14 25 57.29 (0.1) | 14 25 56.88 | 14 25 57.28 | |||
| Declination | 44 25 54.24 (0.2) | 44 25 54.08 | 44 25 54.24 (0.2) | 44 25 54.06 (0.2) | 44 25 49.80 | 44 25 54.16 | |||
| Spectral type | DA+M2 | DA4.1+M2 | DA+M | ||||||
| Effective temperature | [K] | 6300.0 (3) | |||||||
| log(g) | [cgs] | 5.00 (0.003) | |||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 4.41 (0.2) | 4.22 (0.3) | 4.41 (0.2) | |||||
| Distance | [pc] | 226.58 (11) | 237.00 (16) | 226.58 (11) | |||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 0.627076436 (0.2) | -0.283659405 (0.4) | 0.627 (0.2) | |||||
| Proper motion (declination) | [mas/yr] | 11.32865032 (0.2) | 10.41031355 (0.4) | 11.329 (0.2) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | yes | WDMS | |||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 14.73 (0.04) | ||||||||
| H magnitude | 14.23 (0.04) | ||||||||
| K magnitude | 13.94 (0.06) | ||||||||
| u magnitude | 19.61 (0.03) | 19.62 (0.03) | 19.62 | 19.63 (0.03) | |||||
| g magnitude | 18.64 (0.008) | 18.63 (0.008) | 18.63 | 18.65 (0.02) | |||||
| r magnitude | 17.73 (0.006) | 17.73 (0.006) | 17.73 | 17.74 (0.02) | |||||
| i magnitude | 16.72 (0.005) | 16.72 (0.005) | 16.72 | 16.73 (0.02) | |||||
| z magnitude | 16.11 (0.007) | 16.11 (0.007) | 16.11 | 16.12 (0.01) | |||||
| G magnitude | 17.49 (0.01) | 17.42 | 17.49 (0.004) | ||||||
| BP magnitude | 18.32 (0.01) | 18.33 | |||||||
| RP magnitude | 16.27 (0.003) | 16.29 | |||||||
| Pan g magnitude | 18.52 (0.007) | ||||||||
| Pan r magnitude | 17.73 (0.005) | ||||||||
| Pan i magnitude | 16.71 (0.003) | ||||||||
| Pan z magnitude | 16.23 (0.006) | ||||||||
| Pan y magnitude | 15.98 (0.004) | ||||||||
| E(B-V) | 0.020 | ||||||||
* 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.