All names: Gaia DR2 2731732172443595264, SDSS J223906.43+130449.4, Gaia EDR3 2731732172443595264, Gaia DR3 2731732172443595264
| Parameter | Unit | Gaia EDR3 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 22 39 06.44 (0.6) | 22 39 06.43 (0.6) | ||
| Declination | 13 04 49.30 (0.5) | 13 04 49.50 (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] | 1.98 (0.7) | 1.98 (0.7) | |
| Distance | [pc] | 505.59 (171) | 505.59 (171) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 8.294 (0.8) | 8.294 (0.8) | |
| Proper motion (declination) | [mas/yr] | -12.925 (0.7) | -12.925 (0.7) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | ||||
| H magnitude | ||||
| K magnitude | ||||
| u magnitude | 19.83 (0.04) | |||
| g magnitude | 19.87 (0.02) | |||
| r magnitude | 20.09 (0.02) | |||
| i magnitude | 20.32 (0.04) | |||
| z magnitude | 21.20 | |||
| G magnitude | 20.00 (0.007) | 20.00 (0.007) | ||
| BP magnitude | 19.95 (0.1) | |||
| RP magnitude | 19.84 (0.1) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.059 | |||
* 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.