All names: WD 1504+515, SDSS J150542.65+512354.8, SDSS J150542.65+512354.9, Gaia DR3 1592930871038647680, Gaia DR2 1592930871038647680, Gaia EDR3 1592930871038647680, GALEX J150542.6+512355, SDSS J150542.66+512355.0
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 05 42.63 (0.3) | 15 05 42.65 | 15 05 42.63 (0.4) | 15 05 42.65 (0.3) | 15 05 42.66 | 15 05 42.14 | 15 05 42.66 | ||
| Declination | 51 23 55.32 (0.3) | 51 23 54.87 | 51 23 55.30 (0.4) | 51 23 54.82 (0.3) | 51 23 54.97 | 51 23 51.00 | 51 23 54.98 | ||
| Spectral type | DA | DA_auto | DA | DA | |||||
| Effective temperature | [K] | 12619.0 (506) | 12248.0 (527) | ||||||
| log(g) | [cgs] | 8.11 (0.3) | 8.01 (0.3) | ||||||
| Mass | [M☉] | 0.611 (0.2) | |||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 2.53 (0.3) | 2.14 (0.4) | 2.53 (0.3) | |||||
| Distance | [pc] | 395.11 (49) | 466.62 (93) | 395.10 (49) | |||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -12.38626807 (0.3) | -12.32364944 (0.7) | -12.386 (0.3) | 3.0 | ||||
| Proper motion (declination) | [mas/yr] | 30.84282188 (0.4) | 31.10821514 (0.7) | 30.843 (0.4) | 24.5 | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 20.33 (0.05) | 20.33 (0.05) | 20.35 (0.07) | 20.35 | 20.34 (0.07) | ||||
| g magnitude | 19.91 (0.02) | 19.91 (0.02) | 19.89 (0.03) | 19.89 | 19.89 (0.03) | ||||
| r magnitude | 20.07 (0.03) | 20.07 (0.03) | 20.06 (0.03) | 20.06 | 20.06 (0.03) | ||||
| i magnitude | 20.31 (0.04) | 20.31 (0.04) | 20.29 (0.04) | 20.28 | 20.31 (0.04) | ||||
| z magnitude | 21.29 (0.4) | 21.29 (0.4) | 21.15 (0.4) | 21.15 | 21.17 (0.4) | ||||
| G magnitude | 19.97 (0.05) | 20.03 | 19.97 (0.005) | ||||||
| BP magnitude | 20.01 (0.05) | 19.91 | |||||||
| RP magnitude | 19.94 (0.09) | 20.01 | |||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.020 | ||||||||
* 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.