All names: SDSS J193700.48+621614.2, Gaia EDR3 2240950009039260160, SDSS J193700.48+621614.24, Gaia DR3 2240950009039260160, UCAC4 762-051954, Gaia DR2 2240950009039260160, TIC 229454007, GALEX J193700.4+621614, 2MASS J19370054+6216144
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 19 37 00.46 (0.04) | 19 37 00.47 | 19 37 00.46 (0.04) | 19 37 00.48 (0.04) | ||||
| Declination | 62 16 14.30 (0.04) | 62 16 14.24 | 62 16 14.30 (0.05) | 62 16 14.25 (0.04) | ||||
| Spectral type | DAO/sdO | DAO/sdO | ||||||
| Effective temperature | [K] | 65427.0 (1142) | ||||||
| log(g) | [cgs] | 5.90 (0.05) | ||||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 0.55 (0.04) | 0.54 (0.04) | 0.55 (0.04) | ||||
| Distance | [pc] | 1820.28 (134) | 1865.35 (153) | 1820.17 (134) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -7.144141301 (0.05) | -7.320234005 (0.08) | -7.144 (0.05) | ||||
| Proper motion (declination) | [mas/yr] | 3.010406296 (0.05) | 3.032115082 (0.09) | 3.01 (0.05) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | 14.64 (0.07) | |||||||
| V magnitude | 14.49 (0.1) | |||||||
| R magnitude | 15.72 (0.1) | |||||||
| I magnitude | ||||||||
| J magnitude | 16.05 (0.1) | |||||||
| H magnitude | 16.00 (0.2) | |||||||
| K magnitude | ||||||||
| u magnitude | 14.71 (0.004) | 14.71 (0) | 14.71 (0) | |||||
| g magnitude | 15.12 (0.003) | 15.12 (0) | 14.50 (0.1) | |||||
| r magnitude | 15.66 (0.003) | 15.66 (0) | 14.47 (0.1) | |||||
| i magnitude | 16.01 (0.004) | 16.01 (0) | 14.42 (0.01) | |||||
| z magnitude | 16.37 (0.009) | 16.37 (0.01) | 16.37 (0.01) | |||||
| G magnitude | 15.39 (0.001) | 15.41 | 15.39 (0.003) | |||||
| BP magnitude | 15.21 (0.001) | 15.13 | ||||||
| RP magnitude | 15.72 (0.002) | 15.71 | ||||||
| Pan g magnitude | 15.23 (0.002) | |||||||
| Pan r magnitude | 15.68 (0.003) | |||||||
| Pan i magnitude | 16.05 (0.002) | |||||||
| Pan z magnitude | 16.35 (0.006) | |||||||
| Pan y magnitude | 16.54 (0.008) | |||||||
| E(B-V) | 0.072 | |||||||
* 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.