All names: Gaia DR2 1803804969180491904, Gaia DR3 1803804969180491904, SDSSJ202600.96+125044.8, Gaia EDR3 1803803491711715072, GALEX J202600.9+125044, SDSS J202600.96+125044.8
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Simbad |
|---|---|---|---|---|
| Right ascension | 20 26 00.44 (0.3) | 20 26 00.96 | 20 26 00.97 (0.2) | |
| Declination | 12 50 10.46 (0.3) | 12 50 44.80 | 12 50 44.81 (0.2) | |
| 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] | 0.89 (0.4) | -0.47 (0.4) | 0.19 (0.3) |
| Distance | [pc] | 1124.61 (520) | 5268.70 (8247) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -2.839 (0.4) | -2.22 (0.6) | -2.413 (0.3) |
| Proper motion (declination) | [mas/yr] | -3.099 (0.4) | -2.469 (0.5) | -2.118 (0.3) |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | ||||
| H magnitude | ||||
| K magnitude | ||||
| u magnitude | 18.67 (0.02) | 18.67 (0.02) | ||
| g magnitude | 18.92 (0.009) | 18.92 (0.009) | ||
| r magnitude | 19.18 (0.01) | 19.18 (0.01) | ||
| i magnitude | 19.41 (0.02) | 19.41 (0.02) | ||
| z magnitude | 20.04 (0.09) | 19.87 (0.08) | ||
| G magnitude | 19.92 (0.005) | 19.17 (0.004) | 19.14 (0.004) | |
| BP magnitude | 20.02 (0.09) | 18.87 (0.03) | ||
| RP magnitude | 19.53 (0.06) | 19.13 (0.03) | ||
| Pan g magnitude | 18.94 (0.009) | |||
| Pan r magnitude | 19.27 (0.007) | |||
| Pan i magnitude | 19.55 (0.02) | |||
| Pan z magnitude | 19.75 (0.03) | |||
| Pan y magnitude | 19.64 (0.1) | |||
| E(B-V) | ||||
* 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.