All names: 2MASS J23291787+3253490, Gaia DR3 2872558485019432320, UCAC4 615-134223, GALEXJ23292+3253, Gaia DR2 2872558485019432320, GALEX J232917.9+325348
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 23 29 17.85 | 23 29 17.87 (0.009) | ||
| Declination | 32 53 48.89 | 32 53 49.03 (0.009) | ||
| Spectral type | sdB+F4V | sdB+F4V | ||
| Effective temperature | [K] | 34870.0 (3630) | ||
| log(g) | [cgs] | 5.90 (0.6) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 1.44 (0.04) | 1.37 (0.01) | |
| Distance | [pc] | 695.56 (19) | 729.61 (8) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 20.748 (0.05) | 20.891 (0.01) | |
| Proper motion (declination) | [mas/yr] | 7.553 (0.03) | 7.427 (0.01) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 12.91 (0.01) | |||
| V magnitude | 12.62 (0.02) | |||
| R magnitude | 12.71 (0.1) | |||
| I magnitude | ||||
| J magnitude | 11.94 (0.02) | 11.94 (0.02) | ||
| H magnitude | 11.79 (0.04) | 11.79 (0.04) | ||
| K magnitude | 11.72 (0.02) | 11.72 (0.02) | ||
| u magnitude | 14.28 (0.006) | |||
| g magnitude | 12.78 (0.03) | |||
| r magnitude | 12.75 (0.001) | 12.60 (0.02) | ||
| i magnitude | 12.74 (0.001) | 12.56 (0.08) | ||
| z magnitude | 13.28 (0.007) | |||
| G magnitude | 12.61 (0.0002) | 12.59 (0.003) | ||
| BP magnitude | 12.74 (0.002) | |||
| RP magnitude | 12.31 (0.0006) | |||
| Pan g magnitude | 12.91 | |||
| Pan r magnitude | 12.75 | |||
| Pan i magnitude | 12.72 | |||
| Pan z magnitude | 12.73 | |||
| Pan y magnitude | 12.72 (0.003) | |||
| 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.