All names: Gaia DR3 2131141160001998976, Gaia DR2 2131141160001998976, O11J190435+481022, EQ J1904.5+4810, KIC 10784623, TIC 405686583, GALEX J190434.9+481022, 2MASS J19043482+4810221, GALEX J190434.8+481022
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 19 04 35.00 | 19 04 34.84 (0.04) | ||
| Declination | 48 10 22.00 | 48 10 22.25 (0.04) | ||
| Spectral type | sd | sdB | ||
| Effective temperature | [K] | |||
| log(g) | [cgs] | |||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.38 (0.06) | 0.31 (0.04) | |
| Distance | [pc] | 2631.58 (391) | 3227.89 (408) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -3.602 (0.1) | -3.513 (0.05) | |
| Proper motion (declination) | [mas/yr] | -3.759 (0.1) | -3.737 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.63 (0.1) | 16.63 (0.1) | ||
| H magnitude | 16.34 | |||
| K magnitude | 17.11 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 16.79 (0.001) | 16.77 (0.003) | ||
| BP magnitude | 16.66 (0.006) | |||
| RP magnitude | 16.85 (0.009) | |||
| Pan g magnitude | 16.67 (0.003) | |||
| Pan r magnitude | 16.98 (0.002) | |||
| Pan i magnitude | 17.19 (0.003) | |||
| Pan z magnitude | 17.34 (0.005) | |||
| Pan y magnitude | 17.42 (0.01) | |||
| E(B-V) | 0.034 | |||
* 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.