All names: USNO-B1.0 1457-00203459, SDSS J094827.91+554709.3, GALEX J094827.9+554709, Gaia DR2 1021973346230794112, WISEA J094827.96+554709.9, TIC 446134740, 2MASS J09482785+5547092, WISE J094827.96+554709.9, Gaia EDR3 1021973346230794112, WD 0944+560, SBSS 0944+560, Gaia DR3 1021973346230794112
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|
| Right ascension | 09 48 27.92 (0.05) | 09 48 27.92 (0.06) | 09 48 27.91 (0.05) | 09 48 26.95 | ||
| Declination | 55 47 09.16 (0.04) | 55 47 09.16 (0.07) | 55 47 09.32 (0.04) | 55 47 08.88 | ||
| Spectral type | DAZ | DAZ: | ||||
| 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] | 0.22 (0.07) | 0.32 (0.1) | 0.22 (0.07) | ||
| Distance | [pc] | 4531.46 (1415) | 3125.98 (1029) | 4531.04 (1415) | ||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | 3.38172899 (0.07) | 3.294 (0.1) | 3.382 (0.07) | ||
| Proper motion (declination) | [mas/yr] | -10.07698373 (0.06) | -9.816 (0.2) | -10.077 (0.06) | ||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | 17.60 | |||||
| V magnitude | ||||||
| R magnitude | 16.90 | |||||
| I magnitude | ||||||
| J magnitude | 16.29 (0.07) | |||||
| H magnitude | 16.10 (0.1) | |||||
| K magnitude | 15.87 (0.2) | |||||
| u magnitude | 18.29 (0.01) | |||||
| g magnitude | 17.33 (0.005) | |||||
| r magnitude | 17.10 (0.005) | |||||
| i magnitude | 17.08 (0.005) | |||||
| z magnitude | 17.05 (0.01) | |||||
| G magnitude | 17.10 (0.006) | 17.12 | 17.10 (0.003) | |||
| BP magnitude | 17.34 (0.006) | 17.35 | ||||
| RP magnitude | 16.72 (0.006) | 16.72 | ||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.024 | |||||
* 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.