All names: SDSS J164755.14+264032.9, GALEX J164755.1+264033, UCAC4 584-054205, Gaia EDR3 1307226936386308480, GEN# +6.10070262, UCAC2 41208953, CSI+26-16457, TIC 236019383, Gaia DR3 1307226936386308480, Gaia DR2 1307226936386308480, SDSSJ164755.14+264032.9, UBV M 43132, SDSS J164755.15+264032.9, 2MASS J16475515+2640326, SDSS J164755.15+264032.92, UBV 14233, Ton 262
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Geier 2020 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 47 55.15 (0.02) | 16 47 55.15 | 16 47 55.15 | 16 47 55.15 (0.03) | 16 47 55.15 (0.02) | ||||
| Declination | 26 40 32.85 (0.02) | 26 40 32.93 | 26 40 32.92 | 26 40 32.86 (0.04) | 26 40 32.94 (0.02) | ||||
| Spectral type | sdB | sdB | sdB | ||||||
| Effective temperature | [K] | 7094.0 (33) | |||||||
| 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] | 0.23 (0.03) | 0.20 (0.04) | 0.20 (0.04) | 0.23 (0.03) | ||||
| Distance | [pc] | 4408.26 (564) | 4948.05 (1063) | 4949.24 (1063) | 4409.17 (564) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -2.133550829 (0.03) | -2.11 (0.07) | -2.110455836 (0.07) | -2.134 (0.03) | ||||
| Proper motion (declination) | [mas/yr] | -5.445303605 (0.03) | -5.455 (0.09) | -5.455258809 (0.09) | -5.445 (0.03) | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 15.49 | ||||||||
| V magnitude | 15.42 | ||||||||
| R magnitude | 15.88 (0.4) | ||||||||
| I magnitude | |||||||||
| J magnitude | 15.96 (0.09) | 15.96 (0.09) | |||||||
| H magnitude | 15.94 (0.2) | 15.94 (0.2) | |||||||
| K magnitude | 15.48 | ||||||||
| u magnitude | 15.89 (0.005) | 15.89 (0.005) | 15.90 (0.02) | 15.89 (0.005) | |||||
| g magnitude | 15.53 (0.003) | 15.53 (0.003) | 15.55 (0.02) | 15.53 (0.003) | |||||
| r magnitude | 15.82 (0.003) | 15.82 (0.003) | 15.83 (0.01) | 15.82 (0.003) | |||||
| i magnitude | 16.06 (0.004) | 16.06 (0.004) | 16.04 (0.02) | 16.06 (0.004) | |||||
| z magnitude | 16.27 (0.008) | 16.27 (0.008) | 16.27 (0.02) | 16.27 (0.008) | |||||
| G magnitude | 15.69 (0.002) | 15.71 (0.0006) | 15.71 | 15.69 (0.003) | |||||
| BP magnitude | 15.66 (0.002) | 15.63 (0.005) | 15.63 | ||||||
| RP magnitude | 15.74 (0.003) | 15.74 (0.003) | 15.74 | ||||||
| Pan g magnitude | 15.60 (0.003) | 15.60 (0.003) | |||||||
| Pan r magnitude | 15.85 (0.003) | 15.85 (0.003) | |||||||
| Pan i magnitude | 16.09 (0.002) | 16.09 (0.002) | |||||||
| Pan z magnitude | 16.28 (0.006) | 16.28 (0.006) | |||||||
| Pan y magnitude | 16.38 (0.005) | 16.38 (0.005) | |||||||
| E(B-V) | 0.029 | ||||||||
* 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.