All names: Gaia DR2 723769918579086464, SDSS J104254.42+244339.8, GALEX 2486974493246885061, Gaia DR3 723769918579086464, USNO-A2.0 1125-06165696, SDSS J104254.41+244339.7, Gaia EDR3 723769918579086464, LAMOST J104254.42+244339.8
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Guo et al. 2015 | Vincent et al. 2024 | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 42 54.36 (0.1) | 10 42 54.42 | 10 42 54.36 (0.2) | 10 42 54.36 | 10 42 54.44 (0.2) | 10 42 54.42 | |||||
| Declination | 24 43 39.67 (0.2) | 24 43 39.78 | 24 43 39.67 (0.3) | 24 43 39.67 | 24 43 39.69 (0.3) | 24 43 39.82 | |||||
| Spectral type | DA | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 11294.0 (401) | 11640.0 (118) | ||||||||
| log(g) | [cgs] | 7.91 (0.06) | 8.21 (0.05) | ||||||||
| Mass | [M☉] | 0.552 (0.05) | 0.725 (0.03) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 4.99 (0.2) | 5.09 (0.3) | 4.99 | 5.09 (0.3) | ||||||
| Distance | [pc] | 200.47 (7) | 196.58 (13) | 200.47 | 196.58 (13) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -73.98612204 (0.1) | -73.60291939 (0.4) | -73.603 (0.4) | |||||||
| Proper motion (declination) | [mas/yr] | -0.907680579 (0.2) | -1.115538562 (0.5) | -1.116 (0.5) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 17.60 (0.3) | ||||||||||
| V magnitude | |||||||||||
| R magnitude | 18.20 (0.3) | ||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 18.57 (0.02) | 18.57 (0.02) | 18.53 (0.02) | ||||||||
| g magnitude | 18.12 (0.006) | 18.12 (0.006) | 18.14 (0.02) | ||||||||
| r magnitude | 18.31 (0.008) | 18.31 (0.008) | 18.36 (0.02) | ||||||||
| i magnitude | 18.47 (0.01) | 18.47 (0.01) | 18.48 (0.02) | ||||||||
| z magnitude | 18.66 (0.04) | 18.66 (0.04) | 18.67 (0.04) | ||||||||
| G magnitude | 18.21 (0.01) | 18.25 | 18.21 | 18.25 (0.003) | |||||||
| BP magnitude | 18.24 (0.01) | 18.25 | |||||||||
| RP magnitude | 18.20 (0.02) | 18.19 | |||||||||
| Pan g magnitude | 18.15 (0.02) | ||||||||||
| Pan r magnitude | 18.30 (0.01) | ||||||||||
| Pan i magnitude | 18.50 (0.007) | ||||||||||
| Pan z magnitude | 18.69 (0.02) | ||||||||||
| Pan y magnitude | 18.82 (0.03) | ||||||||||
| E(B-V) | 0.014 | ||||||||||
* 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.