All names: PG 0917+037, GALEX J092019.0+033225, Gaia DR3 3845847307501707392, USNO-B1.0 0935-00182866, SDSS J092019.06+033225.8, Gaia DR2 3845847307501707392
| Parameter | Unit | Vincent et al. 2024 | Simbad |
|---|---|---|---|
| Right ascension | 09 20 19.06 | 09 20 19.07 (0.08) | |
| Declination | 03 32 25.54 | 03 32 25.86 (0.06) | |
| Spectral type | DA | DA | |
| Effective temperature | [K] | 37119.0 (2245) | |
| log(g) | [cgs] | 8.14 (0.05) | |
| Mass | [M☉] | 0.735 (0.04) | |
| log(Luminosity) | [L☉] | ||
| Cooling age | [Gyr] | ||
| log(H/He) | |||
| log(C/He) | |||
| log(Ca/He) | |||
| log(Ca/H) | |||
| Parallax | [mas] | 3.95 | 3.95 (0.1) |
| Distance | [pc] | 253.01 | 253.01 (6) |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | -5.559 (0.1) | |
| Proper motion (declination) | [mas/yr] | -20.462 (0.08) | |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | 16.40 | ||
| V magnitude | |||
| R magnitude | 16.40 | ||
| I magnitude | |||
| J magnitude | 17.56 (0.03) | ||
| H magnitude | 17.51 (0.05) | ||
| K magnitude | 17.80 (0.1) | ||
| u magnitude | 16.29 (0.009) | ||
| g magnitude | 16.57 (0.02) | ||
| r magnitude | 17.06 (0.02) | ||
| i magnitude | 17.41 (0.01) | ||
| z magnitude | 17.74 (0.02) | ||
| G magnitude | 16.80 | 16.80 (0.003) | |
| BP magnitude | |||
| RP magnitude | |||
| Pan g magnitude | |||
| Pan r magnitude | |||
| Pan i magnitude | |||
| Pan z magnitude | |||
| Pan y magnitude | |||
| E(B-V) | |||
* 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.