All names: Gaia DR3 1311811590635777280, 2MASS J16351831+2952031, SDSS J163518.31+295203.3, SDSSJ163518.31+295203.2, Gaia EDR3 1311811590635777280, Gaia DR2 1311811590635777280, SDSS J163518.31+295203.2, SDSS J163518.31+295203.27, GALEX J163518.3+295203
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Kepler et al. 2016 | Simbad |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 35 18.31 (0.03) | 16 35 18.31 | 16 35 18.31 | 16 35 18.31 (0.04) | 16 35 18.32 (0.03) | ||||
| Declination | 29 52 03.24 (0.05) | 29 52 03.29 | 29 52 03.20 | 29 52 03.24 (0.06) | 29 52 03.29 (0.05) | ||||
| Spectral type | sdB | sdB | sdB2He4+G/K | ||||||
| Effective temperature | [K] | 30974.0 (1057) | 30947.0 (0) | ||||||
| log(g) | [cgs] | 5.48 (0.1) | 5.57 (0.5) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.28 (0.05) | 0.39 (0.06) | 0.39 (0.06) | 0.28 (0.05) | ||||
| Distance | [pc] | 3520.09 (636) | 2552.97 (405) | 2552.96 (405) | 3519.89 (636) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -7.977509077 (0.05) | -8.258 (0.09) | -8.257944997 (0.09) | -7.978 (0.05) | ||||
| Proper motion (declination) | [mas/yr] | -3.497003956 (0.06) | -4.049 (0.1) | -4.049265641 (0.1) | -3.497 (0.06) | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.50 (0.1) | 16.50 (0.1) | |||||||
| H magnitude | 15.93 (0.2) | 15.93 (0.2) | |||||||
| K magnitude | 15.97 (0.2) | 15.97 (0.2) | |||||||
| u magnitude | 16.59 (0.007) | 16.59 (0.007) | 16.60 (0.02) | 16.59 (0.007) | |||||
| g magnitude | 16.66 (0.004) | 16.65 (0.004) | 16.66 (0.01) | 16.65 (0.004) | |||||
| r magnitude | 16.93 (0.005) | 16.93 (0.005) | 16.92 (0.02) | 16.93 (0.005) | |||||
| i magnitude | 17.09 (0.006) | 17.09 (0.006) | 17.11 (0.02) | 17.09 (0.006) | |||||
| z magnitude | 17.19 (0.01) | 17.19 (0.01) | 17.18 (0.02) | 17.19 (0.01) | |||||
| G magnitude | 16.73 (0.004) | 16.75 (0.001) | 16.75 | 16.73 (0.003) | |||||
| BP magnitude | 16.71 (0.004) | 16.68 (0.009) | 16.68 | ||||||
| RP magnitude | 16.71 (0.005) | 16.71 (0.004) | 16.71 | ||||||
| Pan g magnitude | 16.68 (0.003) | 16.68 (0.003) | |||||||
| Pan r magnitude | 16.94 (0.004) | 16.94 (0.004) | |||||||
| Pan i magnitude | 17.05 (0.003) | 17.05 (0.003) | |||||||
| Pan z magnitude | 17.17 (0.003) | 17.17 (0.003) | |||||||
| Pan y magnitude | 17.21 (0.01) | 17.21 (0.01) | |||||||
| E(B-V) | 0.024 | ||||||||
* 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.