All names: UCAC4 616-054112, Gaia DR3 1314330017723952000, SDSS J164326.04+330113.1, PG1641+331, Gaia EDR3 1314330017723952000, TIC 471015198, TIC 1270298047, PG 1641+331, [CBB98] 1, LAMOST J164326.04+330113.1, KUV 433-17, GALEX J164326.1+330113, Gaia DR2 1314330017723952000, KUV 16416+3307
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 43 26.04 (0.03) | 16 43 26.05 | 16 43 26.08 | 16 43 26.04 (0.05) | 16 43 26.05 (0.03) | 16 43 26.04 | |||
| Declination | 33 01 13.15 (0.04) | 33 01 13.15 | 33 01 13.56 | 33 01 13.15 (0.06) | 33 01 13.16 (0.04) | 33 01 13.15 | |||
| Spectral type | sdB | sdB | SD_auto | ||||||
| Effective temperature | [K] | 27900.0 (500) | 28620.0 (130) | ||||||
| log(g) | [cgs] | 5.62 (0.07) | 5.46 (0.03) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.38 (0.05) | 0.57 (0.07) | 0.57 (0.07) | 0.38 (0.05) | ||||
| Distance | [pc] | 2608.16 (313) | 1748.25 (203) | 1748.14 (203) | 2608.24 (313) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -7.487100631 (0.04) | -7.5 (0.1) | -7.500426026 (0.1) | -7.487 (0.04) | -8.3 | |||
| Proper motion (declination) | [mas/yr] | -1.001447728 (0.06) | -0.856 (0.2) | -0.855580933 (0.2) | -1.001 (0.06) | -7.6 | |||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 16.05 (0.01) | ||||||||
| V magnitude | 16.36 (0.2) | ||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 15.86 (0.005) | 15.86 (0.005) | 15.86 (0.005) | 15.86 (0.01) | |||||
| g magnitude | 16.02 (0.004) | 16.02 (0.004) | 16.02 (0.004) | 16.05 (0.01) | |||||
| r magnitude | 16.51 (0.005) | 16.51 (0.005) | 16.51 (0.005) | 16.51 (0.01) | |||||
| i magnitude | 16.84 (0.006) | 16.84 (0.006) | 16.84 (0.006) | 16.86 (0.01) | |||||
| z magnitude | 17.17 (0.01) | 17.17 (0.01) | 17.17 (0.01) | 17.16 (0.02) | |||||
| G magnitude | 16.27 (0.003) | 16.30 (0.001) | 16.30 | 16.27 (0.003) | |||||
| BP magnitude | 16.14 (0.003) | 16.08 (0.009) | 16.08 | ||||||
| RP magnitude | 16.53 (0.006) | 16.52 (0.006) | 16.52 | ||||||
| Pan g magnitude | 16.10 (0.004) | 16.10 (0.004) | |||||||
| Pan r magnitude | 16.53 (0.003) | 16.53 (0.003) | |||||||
| Pan i magnitude | 16.87 (0.002) | 16.87 (0.002) | |||||||
| Pan z magnitude | 17.14 (0.003) | 17.14 (0.003) | |||||||
| Pan y magnitude | 17.30 (0.005) | 17.30 (0.005) | |||||||
| 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.