All names: WD 0016+000, GALEX J001855.1+002135, Gaia DR2 2545368456229427328, Gaia EDR3 2545368456229427328, 2MASS J00185518+0021343, SDSS J001855.20+002134.5, SDSS J001855.19+002134.5, TIC 293342818, [SGR2010] J0018+0021, Gaia DR3 2545368456229427328, SDSS J001855.20+002134.4
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 00 18 55.20 (0.5) | 00 18 55.20 | 00 18 55.20 (0.7) | 00 18 55.20 (0.5) | 00 18 54.79 | |||
| Declination | 00 21 34.27 (0.3) | 00 21 34.41 | 00 21 34.27 (0.5) | 00 21 34.44 (0.3) | 00 21 33.48 | |||
| Spectral type | DA+dM | DA d | ||||||
| Effective temperature | [K] | |||||||
| log(g) | [cgs] | |||||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 3.26 (0.6) | 1.87 (0.8) | 3.26 (0.6) | ||||
| Distance | [pc] | 306.62 (53) | 533.69 (218) | 306.62 (53) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -2.04746371 (0.7) | -0.675744402 (2) | -2.047 (0.7) | ||||
| Proper motion (declination) | [mas/yr] | -10.92639852 (0.6) | -8.797678015 (1) | -10.926 (0.6) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | 17.09 (0.03) | |||||||
| H magnitude | 16.20 (0.2) | |||||||
| K magnitude | 15.61 (0.1) | |||||||
| u magnitude | 21.56 (0.1) | 21.60 (0.2) | 21.60 | |||||
| g magnitude | 20.63 (0.02) | 20.60 (0.03) | 20.60 | |||||
| r magnitude | 19.92 (0.02) | 19.85 (0.02) | 19.87 | |||||
| i magnitude | 18.96 (0.01) | 18.95 (0.01) | 18.97 | |||||
| z magnitude | 18.33 (0.03) | 18.37 (0.04) | 18.38 | |||||
| G magnitude | 19.75 (0.06) | 19.69 | 19.75 (0.006) | |||||
| BP magnitude | 20.40 (0.06) | 20.28 | ||||||
| RP magnitude | 18.52 (0.02) | 18.52 | ||||||
| Pan g magnitude | 20.62 (0.05) | |||||||
| Pan r magnitude | 19.94 (0.01) | |||||||
| Pan i magnitude | 18.98 (0.006) | |||||||
| Pan z magnitude | 18.48 (0.009) | |||||||
| Pan y magnitude | 18.23 (0.01) | |||||||
| E(B-V) | 0.026 | |||||||
* 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.