All names: EGGR 488, TIC 155947880, PG 1524+439, FBS B 352, Gaia EDR3 1394116942282089344, PG1524+439, WD 1524+438, CBS 246, UCAC4 669-059165, SDSS J152553.46+434127.8, Gaia DR2 1394116942282089344, FBS 1524+438, LAMOST J152553.44+434127.5, GALEX J152553.4+434127, Gaia DR3 1394116942282089344, SDSS J152553.46+434127.7, 2MASS J15255345+4341278
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 25 53.46 (0.02) | 15 25 53.46 | 15 25 53.48 | 15 25 53.46 (0.02) | 15 25 53.46 (0.02) | 15 25 53.47 | 15 25 55.85 | |||
| Declination | 43 41 27.75 (0.02) | 43 41 27.81 | 43 41 27.83 | 43 41 27.75 (0.03) | 43 41 27.78 (0.02) | 43 41 27.70 | 43 41 27.24 | |||
| Spectral type | sdB+K3 | sdOBHe+K2V | SDO | DABZ4 | ||||||
| Effective temperature | [K] | 36129.0 (233) | ||||||||
| log(g) | [cgs] | 5.00 (0.009) | ||||||||
| Mass | [M☉] | |||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 0.73 (0.03) | 0.67 (0.03) | 0.67 (0.03) | 0.73 (0.03) | |||||
| Distance | [pc] | 1377.04 (48) | 1500.60 (72) | 1500.66 (72) | 1377.03 (48) | |||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -1.212065669 (0.02) | -0.878 (0.05) | -0.878085973 (0.05) | -1.212 (0.02) | -2.5 | ||||
| Proper motion (declination) | [mas/yr] | -1.594740615 (0.03) | -1.437 (0.06) | -1.436997903 (0.06) | -1.595 (0.03) | -2.1 | ||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 15.29 (0.01) | |||||||||
| V magnitude | 15.17 (0.02) | |||||||||
| R magnitude | 15.22 (0.1) | |||||||||
| I magnitude | ||||||||||
| J magnitude | 14.46 (0.03) | 14.46 (0.03) | ||||||||
| H magnitude | 14.07 (0.04) | 14.07 (0.04) | ||||||||
| K magnitude | 14.01 (0.04) | 14.01 (0.04) | ||||||||
| u magnitude | 15.05 (0.004) | 15.05 (0.004) | 15.05 (0.004) | 15.07 (0.01) | ||||||
| g magnitude | 15.08 (0.003) | 15.07 (0.003) | 15.20 (0.06) | 15.10 (0.03) | ||||||
| r magnitude | 15.16 (0.003) | 15.16 (0.003) | 15.20 (0.1) | 15.16 (0.01) | ||||||
| i magnitude | 15.18 (0.004) | 15.18 (0.004) | 15.25 (0.01) | 15.18 (0.02) | ||||||
| z magnitude | 15.23 (0.005) | 15.23 (0.005) | 15.23 (0.005) | 15.23 (0.02) | ||||||
| G magnitude | 15.05 (0.002) | 15.07 (0.0008) | 15.07 | 15.05 (0.003) | ||||||
| BP magnitude | 15.13 (0.002) | 15.10 (0.006) | 15.10 | |||||||
| RP magnitude | 14.85 (0.002) | 14.86 (0.003) | 14.86 | |||||||
| Pan g magnitude | 15.17 (0.006) | 15.17 (0.006) | ||||||||
| Pan r magnitude | 15.20 (0.004) | 15.20 (0.004) | ||||||||
| Pan i magnitude | 15.24 (0.004) | 15.24 (0.004) | ||||||||
| Pan z magnitude | 15.29 (0.002) | 15.29 (0.002) | ||||||||
| Pan y magnitude | 15.29 (0.006) | 15.29 (0.006) | ||||||||
| 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.