All names: Gaia DR2 2239107914746074624, SDSS J194407.15+604333.2, Gaia DR3 2239107914746074624, Gaia EDR3 2239107914746074624, GALEXJ19441+6043, UCAC4 754-057625, GALEX J194406.9+604330, WISE J194407.14+604333.2, 2MASS J19440715+6043330, WISEA J194407.15+604333.2, TIC 229486109
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 19 44 07.16 (0.03) | 19 44 06.88 | 19 44 07.16 (0.03) | ||
| Declination | 60 43 32.89 (0.03) | 60 43 32.61 | 60 43 32.95 (0.03) | ||
| Spectral type | sdB | 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] | 1.19 (0.03) | 1.20 (0.04) | 1.19 (0.03) | |
| Distance | [pc] | 840.27 (19) | 834.65 (26) | 840.27 (19) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 3.157 (0.04) | 2.97 (0.09) | 3.157 (0.04) | |
| Proper motion (declination) | [mas/yr] | -3.677 (0.03) | -3.742 (0.07) | -3.677 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 13.53 (0.01) | ||||
| V magnitude | 13.74 (0.01) | ||||
| R magnitude | 13.90 (0.09) | ||||
| I magnitude | |||||
| J magnitude | 14.29 (0.03) | 14.29 (0.03) | |||
| H magnitude | 14.40 (0.04) | 14.40 (0.04) | |||
| K magnitude | 14.43 (0.1) | 14.43 (0.1) | |||
| u magnitude | 13.31 (0.003) | ||||
| g magnitude | 13.88 (0.006) | 13.48 (0.01) | |||
| r magnitude | 13.90 (0.003) | 13.90 (0.01) | |||
| i magnitude | 14.23 (0.003) | 14.19 (0.01) | |||
| z magnitude | 14.56 (0.004) | ||||
| G magnitude | 13.70 (0.003) | 13.71 (0.0005) | 13.70 (0.003) | ||
| BP magnitude | 13.56 (0.003) | 13.49 (0.006) | |||
| RP magnitude | 13.95 (0.004) | 13.94 (0.002) | |||
| Pan g magnitude | 13.54 (0.001) | ||||
| Pan r magnitude | 13.95 (0.003) | ||||
| Pan i magnitude | 14.30 (0.007) | ||||
| Pan z magnitude | 14.56 (0.005) | ||||
| Pan y magnitude | 14.76 (0.006) | ||||
| E(B-V) | 0.071 | ||||
* 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.