All names: Gaia EDR3 2294384345705829504, GALEX J181151.9+794355, Gaia DR2 2294384345705829504, SDSS J181151.97+794356.3, Gaia DR3 2294384345705829504
| Parameter | Unit | Gaia EDR3 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 18 11 51.99 (0.4) | 18 11 52.00 (0.4) | ||
| Declination | 79 43 56.06 (0.5) | 79 43 56.37 (0.5) | ||
| Spectral type | DB | |||
| 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] | 1.04 (0.4) | 1.04 (0.4) | |
| Distance | [pc] | 959.05 (394) | 959.05 (394) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.886 (0.6) | -0.886 (0.6) | |
| Proper motion (declination) | [mas/yr] | -19.233 (0.6) | -19.233 (0.6) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | ||||
| H magnitude | ||||
| K magnitude | ||||
| u magnitude | 20.12 (0.07) | |||
| g magnitude | 20.22 (0.02) | |||
| r magnitude | 20.33 (0.03) | |||
| i magnitude | 20.43 (0.05) | |||
| z magnitude | 20.88 (0.3) | |||
| G magnitude | 20.24 (0.006) | 20.24 (0.006) | ||
| BP magnitude | 20.22 (0.09) | |||
| RP magnitude | 20.01 (0.2) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.066 | |||
* 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.