All names: CBS 288, GALEX J145029.4+481759, PG 1448+485, Gaia DR2 1590723949339489024, PG1448+485, Gaia DR3 1590723949339489024, SDSS J145029.37+481800.0, LAMOST J145029.36+481759.9, 2MASS J14502938+4818000, TIC 161025739
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 14 50 29.44 | 14 50 29.38 (0.03) | ||
| Declination | 48 18 00.68 | 48 18 00.08 (0.04) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | 24344.0 (540) | ||
| log(g) | [cgs] | 5.21 (0.06) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.27 (0.05) | 0.24 (0.04) | |
| Distance | [pc] | 3748.13 (698) | 4205.21 (690) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -9.926 (0.07) | -9.905 (0.04) | |
| Proper motion (declination) | [mas/yr] | -14.668 (0.09) | -14.834 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.84 | |||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.55 (0.1) | 16.55 (0.1) | ||
| H magnitude | 16.80 | |||
| K magnitude | 14.98 | |||
| u magnitude | 15.97 (0.005) | 15.97 (0.009) | ||
| g magnitude | 15.86 (0.003) | 15.87 (0.02) | ||
| r magnitude | 16.26 (0.004) | 16.27 (0.02) | ||
| i magnitude | 16.57 (0.005) | 16.57 (0.01) | ||
| z magnitude | 16.83 (0.01) | 16.83 (0.02) | ||
| G magnitude | 16.10 (0.001) | 16.08 (0.003) | ||
| BP magnitude | 15.95 (0.004) | |||
| RP magnitude | 16.26 (0.003) | |||
| Pan g magnitude | 15.92 (0.004) | |||
| Pan r magnitude | 16.28 (0.006) | |||
| Pan i magnitude | 16.59 (0.005) | |||
| Pan z magnitude | 16.83 (0.004) | |||
| Pan y magnitude | 16.96 (0.008) | |||
| E(B-V) | 0.021 | |||
* 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.