All names: GALEX J184915.1+511604, Gaia EDR3 2144511672368316672, WISE J184914.98+511604.7, Gaia DR2 2144511672368316672, TIC 48134247, 2MASS J18491499+5116046, Gaia DR3 2144511672368316672, WISEA J184914.98+511604.7, GALEXJ18492+5116, UCAC4 707-060115
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 18 49 14.99 (0.03) | 18 49 15.20 | 18 49 14.99 (0.03) | ||
| Declination | 51 16 04.81 (0.03) | 51 16 04.80 | 51 16 04.65 (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] | 0.70 (0.03) | 0.71 (0.04) | 0.70 (0.03) | |
| Distance | [pc] | 1433.69 (64) | 1411.83 (83) | 1433.69 (64) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -1.016 (0.04) | -1.061 (0.08) | -1.016 (0.04) | |
| Proper motion (declination) | [mas/yr] | 9.981 (0.04) | 9.74 (0.1) | 9.981 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.63 (0.04) | ||||
| V magnitude | 14.82 (0.08) | ||||
| R magnitude | 15.20 (0.08) | ||||
| I magnitude | |||||
| J magnitude | 15.54 (0.06) | 15.54 (0.06) | |||
| H magnitude | 15.58 (0.1) | 15.58 (0.1) | |||
| K magnitude | 15.09 | ||||
| u magnitude | |||||
| g magnitude | 14.62 (0.03) | ||||
| r magnitude | 15.04 (0.04) | ||||
| i magnitude | 15.46 (0.4) | ||||
| z magnitude | |||||
| G magnitude | 14.87 (0.003) | 14.88 (0.0007) | 14.87 (0.003) | ||
| BP magnitude | 14.73 (0.004) | 14.67 (0.009) | |||
| RP magnitude | 15.15 (0.004) | 15.14 (0.003) | |||
| Pan g magnitude | 14.71 (0.001) | ||||
| Pan r magnitude | 15.13 (0.003) | ||||
| Pan i magnitude | 15.48 (0.002) | ||||
| Pan z magnitude | 15.74 (0.004) | ||||
| Pan y magnitude | 15.94 (0.004) | ||||
| E(B-V) | 0.035 | ||||
* 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.