All names: Gaia EDR3 1930816605348389248, 2MASS J23123739+4227115, FBS 2310+421, GALEXJ23126+4227, Gaia DR2 1930816605348389248, Gaia DR3 1930816605348389248, GALEX J231237.3+422711, TIC 173471839, FBS B 419
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 23 12 37.43 (0.02) | 23 12 37.32 | 23 12 37.40 (0.02) | ||
| Declination | 42 27 11.51 (0.02) | 42 27 11.17 | 42 27 11.54 (0.02) | ||
| Spectral type | sdOB | sdOB | |||
| 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] | 1.55 (0.03) | 1.35 (0.05) | 1.55 (0.03) | |
| Distance | [pc] | 643.62 (14) | 741.18 (28) | 643.62 (14) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 21.075 (0.02) | 21.21 (0.06) | 21.075 (0.02) | |
| Proper motion (declination) | [mas/yr] | -1.867 (0.03) | -2.12 (0.06) | -1.867 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.03 | ||||
| V magnitude | 14.31 | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 14.69 (0.03) | 14.69 (0.03) | |||
| H magnitude | 14.81 (0.07) | 14.81 (0.07) | |||
| K magnitude | 14.80 (0.1) | 14.80 (0.1) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 14.21 (0.003) | 14.22 (0.0005) | 14.21 (0.003) | ||
| BP magnitude | 14.10 (0.004) | 14.03 (0.004) | |||
| RP magnitude | 14.43 (0.005) | 14.41 (0.002) | |||
| Pan g magnitude | 14.05 (0.002) | ||||
| Pan r magnitude | 14.41 (0.003) | ||||
| Pan i magnitude | 14.77 (0.004) | ||||
| Pan z magnitude | 15.01 (0.003) | ||||
| Pan y magnitude | 15.16 (0.003) | ||||
| E(B-V) | 0.112 | ||||
* 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.