All names: Gaia DR3 2103959862471941632, Gaia EDR3 2103959862471941632, EQ J1902.8+4134, 2MASS J19024996+4134580, Gaia DR2 2103959862471941632, UCAC4 658-070326, KIC 6188286, WISE J190249.98+413458.1, TIC 120577802, KeplerJ19028+4134
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 19 02 49.96 (0.02) | 19 02 49.90 | 19 02 49.96 (0.02) | ||
| Declination | 41 34 57.91 (0.02) | 41 34 58.00 | 41 34 58.06 (0.02) | ||
| Spectral type | sdOB | sdOB | |||
| 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] | 1.57 (0.03) | 1.55 (0.03) | 1.57 (0.03) | |
| Distance | [pc] | 634.96 (11) | 644.45 (13) | 634.96 (11) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -0.626 (0.03) | -0.643 (0.05) | -0.626 (0.03) | |
| Proper motion (declination) | [mas/yr] | -9.014 (0.03) | -8.945 (0.06) | -9.014 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 13.79 (0.03) | ||||
| V magnitude | 14.09 (0.08) | ||||
| R magnitude | 14.26 (0.1) | ||||
| I magnitude | |||||
| J magnitude | 14.70 (0.03) | 14.70 (0.03) | |||
| H magnitude | 14.85 (0.06) | 14.85 (0.06) | |||
| K magnitude | 14.70 (0.08) | 14.70 (0.08) | |||
| u magnitude | |||||
| g magnitude | 13.77 (0.04) | ||||
| r magnitude | 14.24 (0.05) | ||||
| i magnitude | 14.67 (0.06) | ||||
| z magnitude | |||||
| G magnitude | 14.04 (0.003) | 14.06 (0.0004) | 14.04 (0.003) | ||
| BP magnitude | 13.91 (0.003) | 13.85 (0.006) | |||
| RP magnitude | 14.31 (0.004) | 14.31 (0.002) | |||
| Pan g magnitude | 13.89 (0.002) | ||||
| Pan r magnitude | 14.30 (0.003) | ||||
| Pan i magnitude | 14.66 (0.002) | ||||
| Pan z magnitude | 14.92 (0.003) | ||||
| Pan y magnitude | 15.11 (0.004) | ||||
| 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.