All names: SDSS J231906.06+171110.0, Gaia DR2 2817915471538129536, SDSS J231906.05+171110.0, SDSSJ231906.06+171110.06, GALEX J231906.0+171110, Gaia DR3 2817915471538459008, Gaia EDR3 2817915471538459008, SDSS J231906.05+171110.1, SDSS J231906.06+171110.06
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Kepler et al. 2016 | Simbad |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 19 06.06 (0.08) | 23 19 06.05 | 23 19 06.06 | 23 19 06.06 (0.1) | 23 19 06.05 (0.08) | ||||
| Declination | 17 11 10.07 (0.08) | 17 11 10.09 | 17 11 10.06 | 17 11 10.08 (0.09) | 17 11 10.19 (0.08) | ||||
| Spectral type | sdB | sdB | sdB | ||||||
| Effective temperature | [K] | 35196.0 (291) | 35196.0 (291) | ||||||
| log(g) | [cgs] | 5.94 (0.04) | 5.94 (0.04) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.23 (0.1) | 0.09 (0.1) | 0.09 (0.1) | 0.23 (0.1) | ||||
| Distance | [pc] | 4298.78 (2098) | 10548.52 (16056) | 10543.37 (16044) | 4299.23 (2100) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 4.118502692 (0.1) | 4.533 (0.3) | 4.533346484 (0.3) | 4.119 (0.1) | ||||
| Proper motion (declination) | [mas/yr] | -7.503491099 (0.1) | -7.71 (0.2) | -7.710275704 (0.2) | -7.503 (0.1) | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 17.21 (0.01) | 17.21 (0.01) | 17.22 (0.03) | 17.21 (0.01) | |||||
| g magnitude | 17.44 (0.005) | 17.44 (0.005) | 17.48 (0.03) | 17.44 (0.005) | |||||
| r magnitude | 17.84 (0.006) | 17.84 (0.006) | 17.82 (0.02) | 17.84 (0.006) | |||||
| i magnitude | 18.12 (0.009) | 18.11 (0.009) | 18.13 (0.02) | 18.12 (0.009) | |||||
| z magnitude | 18.29 (0.03) | 18.28 (0.03) | 18.28 (0.03) | 18.29 (0.03) | |||||
| G magnitude | 17.61 (0.01) | 17.62 (0.002) | 17.62 | 17.61 (0.003) | |||||
| BP magnitude | 17.52 (0.01) | 17.47 (0.01) | 17.47 | ||||||
| RP magnitude | 17.70 (0.01) | 17.71 (0.01) | 17.71 | ||||||
| Pan g magnitude | 17.49 (0.005) | 17.49 (0.005) | |||||||
| Pan r magnitude | 17.82 (0.004) | 17.82 (0.004) | |||||||
| Pan i magnitude | 18.03 (0.005) | 18.03 (0.005) | |||||||
| Pan z magnitude | 18.17 (0.01) | 18.17 (0.01) | |||||||
| Pan y magnitude | 18.27 (0.009) | 18.27 (0.009) | |||||||
| E(B-V) | 0.054 | ||||||||
* 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.