All names: Gaia DR2 1737897841324840832, SDSS J205845.00+073339.3, GALEX J205845.0+073339, SDSS J205844.99+073339.3, Gaia DR3 1737897841326227072, Gaia EDR3 1737897841326227072, WDJ205844.96+073339.18, HS 2056+0721, WD 2056+073, J2058+0733
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2020 | Gaia DR2 | Stilism | Koester et al. 2009 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 20 58 45.03 (0.05) | 20 58 45.03 (0.07) | 20 58 45.03 | 20 58 44.96 (0.05) | 20 58 45.03 | 20 58 44.52 | |||||
| Declination | 07 33 39.43 (0.04) | 07 33 39.42 (0.05) | 07 33 39.43 | 07 33 39.18 (0.04) | 07 33 39.42 | 07 33 34.92 | |||||
| Spectral type | DA | DA | DA | DA1.8 | |||||||
| Effective temperature | [K] | 26420.0 (306) | 27289.0 (42) | 27585.0 (398) | |||||||
| log(g) | [cgs] | 8.39 (0.01) | 8.32 (0.007) | 8.44 (0.01) | |||||||
| Mass | [M☉] | 0.873 (0.01) | 0.903 (0.01) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 12.51 (0.06) | 12.51 (0.09) | 12.51 | 12.51 (0.06) | 12.51 (0.09) | |||||
| Distance | [pc] | 79.96 (0.4) | 79.92 (0.6) | 79.96 | 79.96 (0.4) | 79.92 (0.6) | |||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 65.6315051 (0.06) | 65.58923912 (0.1) | 65.632 (0.06) | 65.58923912 | ||||||
| Proper motion (declination) | [mas/yr] | 15.69261101 (0.05) | 15.80307317 (0.1) | 15.693 (0.05) | 15.80307317 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 15.30 | ||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 14.96 (0.004) | 14.96 (0.004) | |||||||||
| g magnitude | 15.16 (0.004) | 15.16 (0.004) | |||||||||
| r magnitude | 15.60 (0.005) | 15.60 (0.005) | |||||||||
| i magnitude | 15.93 (0.005) | 15.93 (0.005) | |||||||||
| z magnitude | 16.26 (0.008) | 16.26 (0.008) | |||||||||
| G magnitude | 15.40 (0.002) | 15.40 | 15.40 | 15.40 (0.003) | 15.40 | ||||||
| BP magnitude | 15.26 (0.002) | 15.21 | 15.21 | ||||||||
| RP magnitude | 15.64 (0.004) | 15.64 | 15.64 | ||||||||
| Pan g magnitude | 15.22 (0.002) | ||||||||||
| Pan r magnitude | 15.61 (0.002) | ||||||||||
| Pan i magnitude | 15.97 (0.002) | ||||||||||
| Pan z magnitude | 16.25 (0.006) | ||||||||||
| Pan y magnitude | 16.42 (0.008) | ||||||||||
| E(B-V) | 0.007 | ||||||||||
* 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.