All names: SDSS J152226.72+244336.3, Gaia DR3 1270016817203702400, 2MASS J15222672+2443363, UCAC4 574-051260, SDSSJ152226.72+244336.3, GALEX J152226.6+244336, Gaia DR2 1270016817203702400
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 15 22 26.72 | 15 22 26.72 (0.02) | ||
| Declination | 24 43 36.39 | 24 43 36.37 (0.02) | ||
| Spectral type | sd | sdB+F5V | ||
| 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] | 0.36 (0.04) | 0.35 (0.03) | |
| Distance | [pc] | 2745.74 (323) | 2896.03 (273) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -3.211 (0.06) | -3.239 (0.03) | |
| Proper motion (declination) | [mas/yr] | -5.107 (0.06) | -5.09 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.83 (0.06) | |||
| V magnitude | 15.66 (0.1) | |||
| R magnitude | 15.81 (0.08) | |||
| I magnitude | ||||
| J magnitude | 15.01 (0.04) | 15.01 (0.04) | ||
| H magnitude | 14.79 (0.08) | 14.79 (0.08) | ||
| K magnitude | 14.69 (0.08) | 14.69 (0.08) | ||
| u magnitude | 15.94 (0.005) | 15.94 (0.005) | ||
| g magnitude | 15.65 (0.003) | 15.73 (0.03) | ||
| r magnitude | 15.70 (0.004) | 15.71 (0.03) | ||
| i magnitude | 15.72 (0.004) | 15.85 (0.01) | ||
| z magnitude | 15.78 (0.006) | 15.78 (0.006) | ||
| G magnitude | 15.62 (0.0005) | 15.60 (0.003) | ||
| BP magnitude | 15.69 (0.004) | |||
| RP magnitude | 15.40 (0.003) | |||
| Pan g magnitude | 15.69 (0.002) | |||
| Pan r magnitude | 15.70 (0.002) | |||
| Pan i magnitude | 15.73 (0.005) | |||
| Pan z magnitude | 15.81 (0.003) | |||
| Pan y magnitude | 15.85 (0.004) | |||
| E(B-V) | 0.047 | |||
* 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.