All names: Gaia EDR3 728869904480296320, LAMOST J102033.68+274137.3, SDSS J102033.68+274137.3, GALEX 2694887645228567181, Gaia DR3 728869904480296320, SDSS J102033.69+274137.4, USNO-A2.0 1125-06091992, Gaia DR2 728869904480296320, SDSS J102033.68+274137.4
| 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 20 33.68 (0.1) | 10 20 33.68 | 10 20 33.68 (0.2) | 10 20 33.68 | 10 20 33.69 (0.2) | 10 20 33.69 | |||||
| Declination | 27 41 37.08 (0.1) | 27 41 37.37 | 27 41 37.10 (0.2) | 27 41 37.08 | 27 41 37.58 (0.2) | 27 41 37.40 | |||||
| Spectral type | DA | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 11623.0 (402) | 11915.0 (146) | ||||||||
| log(g) | [cgs] | 8.07 (0.05) | 8.39 (0.05) | ||||||||
| Mass | [M☉] | 0.646 (0.04) | 0.838 (0.03) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 5.44 (0.2) | 5.07 (0.3) | 5.44 | 5.07 (0.3) | ||||||
| Distance | [pc] | 183.75 (5) | 197.16 (13) | 183.75 | 197.16 (13) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -14.38261997 (0.1) | -15.34697337 (0.4) | -15.347 (0.4) | |||||||
| Proper motion (declination) | [mas/yr] | -31.51040732 (0.1) | -31.05985033 (0.4) | -31.06 (0.4) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 17.50 (0.3) | ||||||||||
| V magnitude | |||||||||||
| R magnitude | 17.90 (0.3) | ||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 18.53 (0.02) | 18.53 (0.02) | 18.51 (0.02) | ||||||||
| g magnitude | 18.13 (0.006) | 18.13 (0.006) | 18.14 (0.01) | ||||||||
| r magnitude | 18.34 (0.008) | 18.34 (0.008) | 18.35 (0.02) | ||||||||
| i magnitude | 18.51 (0.01) | 18.51 (0.01) | 18.52 (0.02) | ||||||||
| z magnitude | 18.69 (0.03) | 18.69 (0.03) | 18.71 (0.03) | ||||||||
| G magnitude | 18.20 (0.01) | 18.23 | 18.20 | 18.23 (0.003) | |||||||
| BP magnitude | 18.23 (0.01) | 18.19 | |||||||||
| RP magnitude | 18.22 (0.02) | 18.21 | |||||||||
| Pan g magnitude | 18.12 (0.006) | ||||||||||
| Pan r magnitude | 18.31 (0.004) | ||||||||||
| Pan i magnitude | 18.52 (0.002) | ||||||||||
| Pan z magnitude | 18.74 (0.01) | ||||||||||
| Pan y magnitude | 18.84 (0.02) | ||||||||||
| E(B-V) | 0.013 | ||||||||||
* 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.