All names: 2MASS J08281637+2232264, Gaia EDR3 677836136701532544, Gaia DR1 677835999262306432, TYC 1941-1199-1, Gaia DR2 677836003559326848, TIC 14702867, SDSSJ082816.35+223226.5, SDSS J082816.35+223226.5, Gaia DR3 677836003559326848, GALEX J082816.3+223226
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 08 28 20.17 (0.7) | 08 28 16.37 | 08 28 16.38 (0.03) | ||
| Declination | 22 33 45.85 (0.5) | 22 32 26.43 | 22 32 26.47 (0.02) | ||
| Spectral type | sd | sd+F | |||
| 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] | 8.37 (0.7) | 0.13 (0.06) | 0.18 (0.03) | |
| Distance | [pc] | 119.47 (11) | 7645.26 (3659) | 5464.48 (896) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -44.421 (0.9) | -1.528 (0.1) | -1.514 (0.03) | |
| Proper motion (declination) | [mas/yr] | 31.673 (0.7) | -0.223 (0.06) | 0.001 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 12.71 (0.2) | ||||
| V magnitude | 13.92 (0.6) | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 12.50 (0.02) | 12.50 (0.02) | |||
| H magnitude | 12.55 (0.03) | 12.55 (0.03) | |||
| K magnitude | 12.59 (0.03) | 12.59 (0.03) | |||
| u magnitude | 14.35 (0.006) | ||||
| g magnitude | 12.51 (0.001) | ||||
| r magnitude | 12.75 (0.002) | ||||
| i magnitude | 12.92 (0.002) | ||||
| z magnitude | 13.71 (0.007) | ||||
| G magnitude | 20.34 (0.007) | 12.45 (0.0003) | 12.43 (0.003) | ||
| BP magnitude | 20.76 (0.1) | 12.39 (0.004) | |||
| RP magnitude | 19.77 (0.08) | 12.47 (0.001) | |||
| Pan g magnitude | 12.78 | ||||
| Pan r magnitude | 12.89 | ||||
| Pan i magnitude | 12.98 | ||||
| Pan z magnitude | 12.98 (0.005) | ||||
| Pan y magnitude | 13.04 (0.002) | ||||
| E(B-V) | 0.033 | ||||
* 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.