All names: PG1531+447, Gaia DR3 1394581623383963264, Gaia DR2 1394581623383963264, uvby98 680153135, HIDDEN NAME PG 1531+447, SDSS J153316.13+443513.8, UCAC4 673-060334, LAMOST J153316.10+443514.5, GALEX J153316.0+443514, 2MASS J15331613+4435135, FBS B 358, TIC 116486933, Gaia EDR3 1394581623383963264, FBS 1531+447, PG 1531+448
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 15 33 16.12 (0.03) | 15 33 16.11 | 15 33 16.13 (0.03) | ||
| Declination | 44 35 13.98 (0.03) | 44 35 12.91 | 44 35 13.89 (0.03) | ||
| Spectral type | sdB | sdB | |||
| Effective temperature | [K] | 30400.0 (150) | |||
| log(g) | [cgs] | 5.80 (0.03) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.72 (0.04) | 0.78 (0.04) | 0.72 (0.04) | |
| Distance | [pc] | 1386.39 (69) | 1278.77 (70) | 1386.39 (69) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -9.371 (0.04) | -9.546 (0.07) | -9.371 (0.04) | |
| Proper motion (declination) | [mas/yr] | 5.041 (0.04) | 5.13 (0.1) | 5.041 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.20 (0.06) | ||||
| V magnitude | 15.26 (0.1) | ||||
| R magnitude | 15.79 (0.2) | ||||
| I magnitude | |||||
| J magnitude | 16.13 (0.09) | 16.13 (0.09) | |||
| H magnitude | 16.02 (0.2) | 16.02 (0.2) | |||
| K magnitude | 15.06 | ||||
| u magnitude | 15.04 (0.004) | ||||
| g magnitude | 15.23 (0.003) | ||||
| r magnitude | 15.73 (0.003) | ||||
| i magnitude | 16.05 (0.004) | 15.24 (0.01) | |||
| z magnitude | 16.36 (0.008) | ||||
| G magnitude | 15.52 (0.003) | 15.54 (0.0008) | 15.52 (0.003) | ||
| BP magnitude | 15.39 (0.004) | 15.33 (0.007) | |||
| RP magnitude | 15.79 (0.005) | 15.78 (0.003) | |||
| Pan g magnitude | 15.35 (0.005) | ||||
| Pan r magnitude | 15.73 (0.008) | ||||
| Pan i magnitude | 16.09 (0.003) | ||||
| Pan z magnitude | 16.36 (0.006) | ||||
| Pan y magnitude | 16.54 (0.009) | ||||
| 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.