All names: Gaia DR3 1220821231005460352, SDSSJ153239.75+232732.3, Gaia DR2 1220821231005460352, SDSS J153239.76+232732.33, SDSS J153239.75+232732.3, SDSS J153239.76+232732.3, GALEX J153239.8+232732, Gaia EDR3 1220821231005460352
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Geier 2020 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 32 39.75 (0.06) | 15 32 39.76 | 15 32 39.75 | 15 32 39.75 (0.08) | 15 32 39.76 (0.06) | ||||
| Declination | 23 27 32.38 (0.07) | 23 27 32.37 | 23 27 32.30 | 23 27 32.37 (0.07) | 23 27 32.34 (0.07) | ||||
| Spectral type | sdB | DAB: | DAB | ||||||
| Effective temperature | [K] | 23651.0 (222) | |||||||
| log(g) | [cgs] | 5.00 (0.05) | |||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.15 (0.09) | 0.13 (0.1) | 0.13 (0.1) | 0.15 (0.09) | ||||
| Distance | [pc] | 6886.40 (4353) | 7942.81 (6965) | 7940.88 (6959) | 6887.05 (4354) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -7.102043398 (0.08) | -6.76 (0.2) | -6.759698254 (0.2) | -7.102 (0.08) | ||||
| Proper motion (declination) | [mas/yr] | 2.177364537 (0.07) | 2.364 (0.1) | 2.364189615 (0.1) | 2.177 (0.07) | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 17.56 (0.01) | 17.56 (0.01) | 17.55 (0.02) | 17.56 (0.01) | |||||
| g magnitude | 17.45 (0.005) | 17.45 (0.005) | 17.46 (0.01) | 17.45 (0.005) | |||||
| r magnitude | 17.83 (0.006) | 17.83 (0.006) | 17.84 (0.01) | 17.83 (0.006) | |||||
| i magnitude | 18.13 (0.008) | 18.13 (0.008) | 18.13 (0.01) | 18.13 (0.008) | |||||
| z magnitude | 18.38 (0.03) | 18.38 (0.03) | 18.39 (0.03) | 18.39 (0.03) | |||||
| G magnitude | 17.66 (0.007) | 17.68 (0.001) | 17.68 | 17.66 (0.003) | |||||
| BP magnitude | 17.59 (0.007) | 17.53 (0.009) | 17.53 | ||||||
| RP magnitude | 17.85 (0.01) | 17.80 (0.01) | 17.80 | ||||||
| Pan g magnitude | 17.52 (0.008) | 17.52 (0.008) | |||||||
| Pan r magnitude | 17.85 (0.003) | 17.85 (0.003) | |||||||
| Pan i magnitude | 18.15 (0.003) | 18.14 (0.003) | |||||||
| Pan z magnitude | 18.37 (0.007) | 18.37 (0.007) | |||||||
| Pan y magnitude | 18.50 (0.02) | 18.50 (0.02) | |||||||
| E(B-V) | 0.049 | ||||||||
* 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.