All names: Gaia EDR3 140389016185197568, Gaia DR2 140389016185197568, TIC 269827177, SDSS J025555.87+352830.2, LAMOST J025555.88+352830.4, Gaia DR3 140389016185197568, WD 0252+352, SDSS J025555.87+352830.1, GALEX J025555.7+352830, 2MASS J02555588+3528305, Gaia DR3 140352487488116096, [SGR2010] J0255+3528
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 55 55.87 (0.06) | 02 55 55.88 | 02 55 55.87 (0.1) | 02 55 55.89 (0.06) | 02 55 55.46 | ||||
| Declination | 35 28 29.72 (0.05) | 35 28 30.17 | 35 28 29.75 (0.08) | 35 28 30.40 (0.05) | 35 28 29.64 | ||||
| Spectral type | DB+M2 | DB+M2 | DC | ||||||
| Effective temperature | [K] | ||||||||
| log(g) | [cgs] | ||||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 3.84 (0.08) | 3.55 (0.1) | 3.84 (0.08) | |||||
| Distance | [pc] | 260.74 (5) | 281.45 (11) | 260.74 (5) | |||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -18.01944095 (0.08) | -18.1543481 (0.2) | -18.019 (0.08) | |||||
| Proper motion (declination) | [mas/yr] | -42.41325482 (0.07) | -42.45521022 (0.2) | -42.413 (0.07) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | yes | ||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 13.63 (0.03) | ||||||||
| H magnitude | 13.02 (0.03) | ||||||||
| K magnitude | 12.82 (0.03) | ||||||||
| u magnitude | 18.36 (0.02) | 18.36 (0.02) | 18.36 | ||||||
| g magnitude | 17.56 (0.005) | 17.56 (0.005) | 17.56 | ||||||
| r magnitude | 16.52 (0.004) | 16.51 (0.004) | 16.51 | ||||||
| i magnitude | 15.55 (0.004) | 15.54 (0.004) | 15.54 | ||||||
| z magnitude | 14.99 (0.005) | 14.98 (0.005) | 14.98 | ||||||
| G magnitude | 16.19 (0.01) | 16.20 | 16.19 (0.003) | ||||||
| BP magnitude | 17.21 (0.01) | 17.22 | |||||||
| RP magnitude | 15.14 (0.003) | 15.15 | |||||||
| Pan g magnitude | 17.44 (0.004) | ||||||||
| Pan r magnitude | 16.55 (0.005) | ||||||||
| Pan i magnitude | 15.57 (0.003) | ||||||||
| Pan z magnitude | 15.10 (0.005) | ||||||||
| Pan y magnitude | 14.88 (0.002) | ||||||||
| E(B-V) | 0.043 | ||||||||
* 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.