All names: TIC 264027491, UCAC4 846-015854, Gaia DR2 2291158417246140160, Gaia DR3 2291158417246140160, WISEA J202523.19+790004.2, 2MASS J20252290+7900037, Gaia EDR3 2291158417246140160, WISE J202523.11+790004.2, GALEX J202522.9+790004
| Parameter | Unit | Gaia EDR3 | Stilism | Vincent et al. 2024 | Simbad |
|---|---|---|---|---|---|
| Right ascension | 20 25 23.06 (0.03) | 20 25 23.06 | 20 25 22.91 (0.03) | ||
| Declination | 79 00 04.74 (0.03) | 79 00 04.74 | 79 00 03.96 (0.03) | ||
| Spectral type | DA | DA | |||
| Effective temperature | [K] | 24800.0 (367) | |||
| log(g) | [cgs] | 8.10 (0.01) | |||
| Mass | [M☉] | 0.692 (0.01) | |||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 8.85 (0.03) | 8.85 | 8.85 (0.03) | |
| Distance | [pc] | 113.00 (0.4) | 113.00 | 113.00 (0.4) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 26.006 (0.05) | 26.006 (0.05) | ||
| Proper motion (declination) | [mas/yr] | 48.905 (0.04) | 48.905 (0.04) | ||
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.63 (0.03) | ||||
| V magnitude | 15.77 (0.01) | ||||
| R magnitude | 15.94 (0.1) | ||||
| I magnitude | |||||
| J magnitude | 16.36 (0.1) | ||||
| H magnitude | |||||
| K magnitude | |||||
| u magnitude | |||||
| g magnitude | 15.57 (0.01) | ||||
| r magnitude | 15.92 (0.01) | ||||
| i magnitude | 16.27 (0.01) | ||||
| z magnitude | |||||
| G magnitude | 15.81 (0.003) | 15.81 | 15.81 (0.003) | ||
| BP magnitude | 15.70 (0.003) | ||||
| RP magnitude | 16.04 (0.005) | ||||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.007 | ||||
* 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.