All names: FBS2310+404, ZTF J231231.85+404340.3, Gaia DR3 1918386106702275200, TIC 374291200, FBS B 194, GALEX J231231.8+404340, FBS 2310+404, Gaia DR2 1918386106702275200, 2MASS J23123183+4043400
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 23 12 31.87 | 23 12 31.85 (0.02) | ||
| Declination | 40 43 40.29 | 40 43 40.30 (0.02) | ||
| Spectral type | sdB | 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] | 0.06 (0.04) | 0.04 (0.03) | |
| Distance | [pc] | 16393.44 (11852) | 27100.27 (22400) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.96 (0.06) | -0.886 (0.03) | |
| Proper motion (declination) | [mas/yr] | -2.621 (0.06) | -2.709 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.37 (0.05) | 15.37 (0.05) | ||
| H magnitude | 15.40 (0.1) | 15.40 (0.1) | ||
| K magnitude | 15.44 | |||
| u magnitude | ||||
| g magnitude | 15.36 | |||
| r magnitude | 15.56 | |||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.43 (0.001) | 15.41 (0.003) | ||
| BP magnitude | 15.40 (0.005) | |||
| RP magnitude | 15.40 (0.003) | |||
| Pan g magnitude | 15.36 (0.005) | |||
| Pan r magnitude | 15.56 (0.006) | |||
| Pan i magnitude | 15.74 (0.005) | |||
| Pan z magnitude | 15.89 (0.005) | |||
| Pan y magnitude | 15.97 (0.002) | |||
| E(B-V) | 0.096 | |||
* 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.