All names: SDSS J163356.54+265538.2, Gaia DR2 1304648341100745088, 2MASS J16335656+2655383, SDSS J163356.54+265538.1, SDSS J163356.54+265538.14, SDSSJ163356.54+265538.1, TIC 310263588, Gaia DR3 1304648341100745088, Gaia EDR3 1304648341100745088, GALEX J163356.5+265538
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Geier 2020 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 33 56.54 (0.04) | 16 33 56.54 | 16 33 56.54 | 16 33 56.54 (0.05) | 16 33 56.54 (0.04) | ||||
| Declination | 26 55 38.15 (0.05) | 26 55 38.22 | 26 55 38.10 | 26 55 38.16 (0.06) | 26 55 38.24 (0.05) | ||||
| Spectral type | sdOB | DAO | DAO | ||||||
| Effective temperature | [K] | 31838.0 (161) | |||||||
| log(g) | [cgs] | 5.00 (0) | |||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.23 (0.06) | 0.14 (0.08) | 0.14 (0.08) | 0.23 (0.06) | ||||
| Distance | [pc] | 4354.87 (1136) | 7347.54 (4071) | 7347.54 (4068) | 4355.40 (1136) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -4.055707176 (0.05) | -3.947 (0.1) | -3.947343853 (0.1) | -4.056 (0.05) | ||||
| Proper motion (declination) | [mas/yr] | -5.335407059 (0.06) | -5.479 (0.1) | -5.479440215 (0.1) | -5.335 (0.06) | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.63 (0.2) | 16.63 (0.2) | |||||||
| H magnitude | 15.88 | ||||||||
| K magnitude | 15.54 | ||||||||
| u magnitude | 17.16 (0.008) | 17.16 (0.008) | 17.17 (0.02) | 17.16 (0.008) | |||||
| g magnitude | 17.09 (0.005) | 17.09 (0.005) | 17.11 (0.01) | 17.09 (0.005) | |||||
| r magnitude | 17.16 (0.005) | 17.16 (0.005) | 17.15 (0.02) | 17.16 (0.005) | |||||
| i magnitude | 17.22 (0.006) | 17.22 (0.006) | 17.23 (0.01) | 17.22 (0.006) | |||||
| z magnitude | 17.28 (0.01) | 17.28 (0.01) | 17.28 (0.02) | 17.28 (0.01) | |||||
| G magnitude | 17.07 (0.005) | 17.10 (0.001) | 17.10 | 17.07 (0.003) | |||||
| BP magnitude | 17.16 (0.005) | 17.13 (0.007) | 17.13 | ||||||
| RP magnitude | 16.91 (0.005) | 16.91 (0.004) | 16.91 | ||||||
| Pan g magnitude | 17.14 (0.003) | 17.14 (0.003) | |||||||
| Pan r magnitude | 17.19 (0.004) | 17.19 (0.004) | |||||||
| Pan i magnitude | 17.23 (0.003) | 17.23 (0.003) | |||||||
| Pan z magnitude | 17.30 (0.003) | 17.30 (0.003) | |||||||
| Pan y magnitude | 17.32 (0.02) | 17.32 (0.02) | |||||||
| 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.