All names: UCAC4 779-022408, TIC 457127465, GALEX J085628.3+653946, 2MASS J08562849+6539459, WD 0852+658, PG 0852+659, Gaia EDR3 1044784918268692224, Gaia DR2 1044784918268692224, Gaia DR3 1044784918268692224, WDJ085628.48+653946.01, FBS B 774, WISE J085628.47+653946.5, WISEA J085628.47+653946.1, FBS 0852+659
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 56 28.45 (0.02) | 08 56 28.45 (0.03) | 08 56 28.45 | 08 56 28.48 (0.02) | 08 56 28.45 | 08 56 29.21 | ||||
| Declination | 65 39 46.21 (0.02) | 65 39 46.20 (0.04) | 65 39 46.21 | 65 39 46.01 (0.02) | 65 39 46.20 | 65 39 41.40 | ||||
| Spectral type | DA | DA | DA2.5 | DA2 | ||||||
| Effective temperature | [K] | 20050.0 (318) | 19325.0 (169) | |||||||
| log(g) | [cgs] | 8.15 (0.05) | 8.16 (0.008) | |||||||
| Mass | [M☉] | 0.71 (0.03) | 0.719 (0.006) | |||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| log(C/H) | ||||||||||
| log(N/H) | ||||||||||
| log(O/H) | ||||||||||
| log(Na/H) | ||||||||||
| log(Mg/H) | ||||||||||
| log(Al/H) | ||||||||||
| log(Si/H) | ||||||||||
| log(P/H) | ||||||||||
| log(S/H) | ||||||||||
| log(Sc/H) | ||||||||||
| log(Ti/H) | ||||||||||
| log(Cr/H) | ||||||||||
| log(Mn/H) | ||||||||||
| log(Fe/H) | ||||||||||
| log(Ni/H) | ||||||||||
| Parallax | [mas] | 13.64 (0.03) | 13.68 (0.05) | 13.64 | 13.63 (0.03) | 13.68 (0.05) | ||||
| Distance | [pc] | 73.34 (0.2) | 73.09 (0.3) | 93.00 | 73.34 | 73.34 (0.2) | 73.09 (0.3) | |||
| Composition | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -11.84341135 (0.02) | -11.72299847 (0.05) | -11.843 (0.02) | -11.72299847 | |||||
| Proper motion (declination) | [mas/yr] | 12.51762933 (0.03) | 12.52596721 (0.08) | 12.518 (0.03) | 12.52596721 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 15.40 (0.1) | |||||||||
| V magnitude | 15.38 (0.09) | |||||||||
| R magnitude | 15.84 (0.07) | |||||||||
| I magnitude | ||||||||||
| J magnitude | 15.88 (0.08) | |||||||||
| H magnitude | 15.83 (0.2) | |||||||||
| K magnitude | ||||||||||
| u magnitude | ||||||||||
| g magnitude | ||||||||||
| r magnitude | ||||||||||
| i magnitude | ||||||||||
| z magnitude | ||||||||||
| G magnitude | 15.43 (0.001) | 15.45 | 15.43 | 15.43 (0.003) | 15.45 | |||||
| BP magnitude | 15.36 (0.001) | 15.33 | 15.33 | |||||||
| RP magnitude | 15.60 (0.002) | 15.60 | 15.60 | |||||||
| Pan g magnitude | 15.30 (0.004) | |||||||||
| Pan r magnitude | 15.62 (0.004) | |||||||||
| Pan i magnitude | 15.91 (0.003) | |||||||||
| Pan z magnitude | 16.17 (0.007) | |||||||||
| Pan y magnitude | 16.36 (0.01) | |||||||||
| E(B-V) | 0.003 | |||||||||
* 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.