All names: WISE J182518.74+403333.7, Gaia DR3 2109628119789697024, UCAC4 653-065340, 2MASS J18251876+4033336, Gaia EDR3 2109628119789697024, Gaia DR2 2109628119789697024, TIC 288846742, GALEX J182518.7+403332, GALEX J182518.7+403333, O11J182519+403334
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 18 25 18.75 (0.03) | 18 25 19.00 | 18 25 18.76 (0.03) | ||
| Declination | 40 33 33.67 (0.03) | 40 33 34.00 | 40 33 33.74 (0.03) | ||
| Spectral type | sd | ||||
| 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] | 0.50 (0.04) | 0.33 (0.06) | 0.50 (0.04) | |
| Distance | [pc] | 2010.05 (153) | 3045.99 (569) | 2010.05 (153) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -9.413 (0.04) | -9.438 (0.1) | -9.413 (0.04) | |
| Proper motion (declination) | [mas/yr] | -3.924 (0.04) | -3.871 (0.1) | -3.924 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.84 (0.02) | ||||
| V magnitude | 15.94 (0.07) | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 16.26 (0.09) | 16.26 (0.09) | |||
| H magnitude | 16.43 | ||||
| K magnitude | 16.76 | ||||
| u magnitude | |||||
| g magnitude | 15.74 (0.07) | ||||
| r magnitude | 16.28 (0.02) | ||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 15.91 (0.003) | 15.92 (0.001) | 15.91 (0.003) | ||
| BP magnitude | 15.78 (0.004) | 15.74 (0.004) | |||
| RP magnitude | 16.15 (0.006) | 16.14 (0.004) | |||
| Pan g magnitude | 15.76 (0.005) | ||||
| Pan r magnitude | 16.13 (0.004) | ||||
| Pan i magnitude | 16.48 (0.002) | ||||
| Pan z magnitude | 16.74 (0.003) | ||||
| Pan y magnitude | 16.91 (0.006) | ||||
| E(B-V) | 0.037 | ||||
* 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.