All names: Gaia DR2 1915875822873889280, GALEX J230728.5+365440, Gaia DR3 1915875822873889280, FBS 2305+366, TIC 374046152, FBS2305+366, FBS B 629, 2MASS J23072853+3654402
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 23 07 28.61 | 23 07 28.54 (0.02) | ||
| Declination | 36 54 40.80 | 36 54 40.29 (0.02) | ||
| Spectral type | sd | sdB | ||
| 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] | 0.41 (0.05) | 0.39 (0.04) | |
| Distance | [pc] | 2423.65 (297) | 2532.29 (236) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -8.455 (0.06) | -8.584 (0.04) | |
| Proper motion (declination) | [mas/yr] | -7.179 (0.06) | -7.194 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.55 (0.06) | 15.55 (0.06) | ||
| H magnitude | 15.87 (0.2) | 15.87 (0.2) | ||
| K magnitude | 15.78 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.48 (0.0006) | 15.46 (0.003) | ||
| BP magnitude | 15.38 (0.003) | |||
| RP magnitude | 15.56 (0.002) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | 20.06 (0.05) | |||
| Pan z magnitude | ||||
| Pan y magnitude | 17.99 (0.06) | |||
| E(B-V) | 0.092 | |||
* 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.