All names: GALEX J074818.9+482107, Gaia DR3 933799149409100160, TIC 356472327, SDSSJ074818.98+482107.7, SDSS J074818.98+482107.7, SDSS J074818.99+482107.7, Gaia DR2 933799149409100160, 2MASS J07481897+4821080
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 07 48 18.98 | 07 48 19.00 (0.04) | ||
| Declination | 48 21 07.70 | 48 21 07.75 (0.04) | ||
| Spectral type | sdB | sdB1He13 | ||
| Effective temperature | [K] | 27035.0 (1258) | ||
| log(g) | [cgs] | 5.03 (0.2) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.35 (0.08) | 0.27 (0.05) | |
| Distance | [pc] | 2843.33 (633) | 3664.35 (718) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -2.591 (0.1) | -2.755 (0.05) | |
| Proper motion (declination) | [mas/yr] | -2.513 (0.09) | -2.562 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.62 (0.1) | 16.62 (0.1) | ||
| H magnitude | 16.53 (0.3) | 16.53 (0.3) | ||
| K magnitude | 15.87 | |||
| u magnitude | 15.68 (0.005) | 15.68 (0.005) | ||
| g magnitude | 15.73 (0.004) | 15.73 (0.004) | ||
| r magnitude | 16.15 (0.004) | 16.15 (0.004) | ||
| i magnitude | 16.43 (0.005) | 16.43 (0.005) | ||
| z magnitude | 16.72 (0.01) | 16.72 (0.01) | ||
| G magnitude | 15.98 (0.001) | 15.96 (0.003) | ||
| BP magnitude | 15.80 (0.008) | |||
| RP magnitude | 16.13 (0.007) | |||
| Pan g magnitude | 15.82 (0.005) | |||
| Pan r magnitude | 16.16 (0.003) | |||
| Pan i magnitude | 16.47 (0.002) | |||
| Pan z magnitude | 16.71 (0.006) | |||
| Pan y magnitude | 16.85 (0.005) | |||
| E(B-V) | 0.058 | |||
* 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.