All names: GALEX J155615.5+264607, SDSS J155615.54+264607.0, Gaia EDR3 1220442483607106688, Gaia DR3 1220442483607106688, Gaia DR2 1220442483606227072
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 56 15.54 (0.3) | 15 56 15.54 | 15 56 15.54 (0.6) | 15 56 15.55 (0.3) | 15 56 15.54 | ||||
| Declination | 26 46 07.07 (0.5) | 26 46 07.08 | 26 46 07.06 (0.9) | 26 46 07.09 (0.5) | 26 46 07.02 | ||||
| Spectral type | DA+M | DA+M | DA | ||||||
| Effective temperature | [K] | 10161.0 (98) | |||||||
| log(g) | [cgs] | 8.22 (0.1) | |||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 4.00 (0.7) | -1.75 (1) | 4.00 (0.7) | |||||
| Distance | [pc] | 250.15 (41) | 250.15 (41) | ||||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -6.775543476 (0.4) | -10.09234685 (1) | -6.776 (0.4) | |||||
| Proper motion (declination) | [mas/yr] | -1.597065073 (0.7) | 4.966809307 (2) | -1.597 (0.7) | |||||
| 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 | 20.06 (0.04) | 20.24 (0.04) | 20.24 (0.04) | ||||||
| g magnitude | 19.87 (0.02) | 20.01 (0.02) | 20.01 (0.02) | ||||||
| r magnitude | 20.00 (0.02) | 20.24 (0.03) | 20.24 (0.03) | ||||||
| i magnitude | 19.82 (0.03) | 20.02 (0.04) | 20.02 (0.04) | ||||||
| z magnitude | 19.41 (0.07) | 19.73 (0.06) | 19.73 (0.06) | ||||||
| G magnitude | 20.15 (0.04) | 20.12 | 20.15 (0.007) | ||||||
| BP magnitude | 20.11 (0.04) | 19.85 | |||||||
| RP magnitude | 19.70 (0.05) | 19.38 | |||||||
| Pan g magnitude | 20.00 (0.02) | ||||||||
| Pan r magnitude | 20.20 (0.01) | ||||||||
| Pan i magnitude | 20.03 (0.02) | ||||||||
| Pan z magnitude | 19.77 (0.04) | ||||||||
| Pan y magnitude | 19.40 (0.05) | ||||||||
| E(B-V) | 0.035 | ||||||||
* 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.