All names: GALEX J105548.8+633837, Gaia DR3 1055219863435386880, WDJ105533.88+633847.58, Gaia EDR3 1055219863435386880, WDJ105533.88+633847.57, SDSS J105548.78+633836.90, SDSS J105548.78+633836.9, SDSS J105548.77+633836.8
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Kepler et al. 2016 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 55 33.94 (0.1) | 10 55 48.80 | 10 55 33.93 | 10 55 33.94 | 10 55 48.78 | 10 55 33.93 | ||||||
| Declination | 63 38 47.20 (0.2) | 63 38 36.48 | 63 38 47.21 | 63 38 47.20 | 63 38 36.90 | 63 38 47.21 | ||||||
| Spectral type | DA | DA: | DA | |||||||||
| Effective temperature | [K] | 4783.0 | 4455.0 | 10344.0 (1000) | 4891.0 (90) | |||||||
| log(g) | [cgs] | 7.89 | 7.65 | 8.07 (0.5) | 7.93 (0.05) | |||||||
| Mass | [M☉] | 0.515 | 0.38 | 0.521 (0.2) | 0.54 (0.04) | |||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 5.4480 | 3.9380 | |||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| Parallax | [mas] | 14.27 (0.2) | 14.66 (0.3) | 14.27 | 14.66 (0.3) | |||||||
| Distance | [pc] | 70.09 (1) | 68.21 (1) | 70.09 | 68.21 (1) | |||||||
| Composition | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 22.23424233 (0.2) | 22.79150878 (0.4) | 22.79150878 | ||||||||
| Proper motion (declination) | [mas/yr] | -23.58853561 (0.2) | -23.93624362 (0.4) | -23.93624362 | ||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 21.99 (0.2) | 22.00 (0.1) | 22.00 (0.1) | 21.61 (0.2) | ||||||||
| g magnitude | 21.23 (0.04) | 21.27 (0.04) | 21.27 (0.04) | 19.89 (0.02) | ||||||||
| r magnitude | 21.19 (0.05) | 21.24 (0.05) | 21.24 (0.05) | 19.11 (0.01) | ||||||||
| i magnitude | 21.14 (0.07) | 21.15 (0.06) | 21.15 (0.06) | 18.79 (0.01) | ||||||||
| z magnitude | 20.90 (0.2) | 20.90 (0.2) | 20.90 (0.2) | 18.63 (0.04) | ||||||||
| G magnitude | 19.14 (0.03) | 19.17 | 19.14 | 19.17 | ||||||||
| BP magnitude | 19.72 (0.03) | 19.59 | 19.59 | |||||||||
| RP magnitude | 18.47 (0.02) | 18.46 | 18.46 | |||||||||
| Pan g magnitude | 19.75 (0.01) | |||||||||||
| Pan r magnitude | 19.08 (0.007) | |||||||||||
| Pan i magnitude | 18.82 (0.005) | |||||||||||
| Pan z magnitude | 18.70 (0.01) | |||||||||||
| Pan y magnitude | 18.58 (0.02) | |||||||||||
| E(B-V) | 0.004 | |||||||||||
* 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.