All names: SDSS J165439.39+353228.4, Gaia DR2 1339055835208628864, GALEX J165439.3+353228, WD 1652+356, Gaia EDR3 1339055835208628864, SDSS J165439.39+353228.5, Gaia DR3 1339055835208628864
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 54 39.39 (0.5) | 16 54 39.39 | 16 54 39.39 (0.7) | 16 54 39.39 (0.5) | 16 54 39.39 | 16 54 38.98 | 16 54 39.39 | |||
| Declination | 35 32 28.57 (0.5) | 35 32 28.56 | 35 32 28.57 (0.7) | 35 32 28.48 (0.5) | 35 32 28.49 | 35 32 26.52 | 35 32 28.50 | |||
| Spectral type | DA | DA_auto | DA | DA | DA+MS | |||||
| Effective temperature | [K] | 14169.0 (825) | 14664.0 (1079) | |||||||
| log(g) | [cgs] | 7.60 (0.2) | 7.94 (0.3) | |||||||
| Mass | [M☉] | |||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 0.94 (0.6) | 3.17 (0.8) | 0.94 (0.6) | ||||||
| Distance | [pc] | 1064.30 (667) | 315.03 (77) | 1064.28 (667) | ||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -3.310216107 (0.7) | -5.346921208 (1) | -3.31 (0.7) | 1.1 | |||||
| Proper motion (declination) | [mas/yr] | 5.509980476 (0.8) | 5.190866344 (2) | 5.51 (0.8) | 10.6 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | |||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 20.81 (0.07) | 20.82 (0.08) | 20.82 (0.07) | 20.82 | 20.81 (0.08) | |||||
| g magnitude | 20.44 (0.02) | 20.44 (0.02) | 20.45 (0.02) | 20.44 | 20.43 (0.02) | |||||
| r magnitude | 20.65 (0.03) | 20.66 (0.03) | 20.68 (0.03) | 20.68 | 20.68 (0.03) | |||||
| i magnitude | 20.98 (0.06) | 20.98 (0.07) | 20.99 (0.06) | 20.98 | 20.97 (0.06) | |||||
| z magnitude | 21.78 (0.5) | 21.75 (0.6) | 21.65 (0.5) | 21.64 | 21.65 (0.5) | |||||
| G magnitude | 20.58 (0.08) | 20.67 | 20.58 (0.008) | |||||||
| BP magnitude | 20.49 (0.08) | 20.34 | ||||||||
| RP magnitude | 20.20 (0.1) | 20.27 | ||||||||
| Pan g magnitude | ||||||||||
| Pan r magnitude | ||||||||||
| Pan i magnitude | ||||||||||
| Pan z magnitude | ||||||||||
| Pan y magnitude | ||||||||||
| E(B-V) | 0.022 | |||||||||
* 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.