All names: PG 1331+591, 2MASS J13333804+5849341, GALEX J133338.0+584934, SBSS 1331+590, LAMOST J133338.07+584933.7, PG1331+591, Gaia DR2 1662154581230639232, TIC 467178271, Gaia DR3 1662154581230639232, LB 270, SDSS J133338.02+584934.0
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 13 33 37.96 | 13 33 38.03 (0.04) | ||
| Declination | 58 49 34.29 | 58 49 34.12 (0.03) | ||
| Spectral type | sdB | sdBHe | ||
| Effective temperature | [K] | 33400.0 (590) | ||
| log(g) | [cgs] | 5.14 (0.08) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.34 (0.06) | 0.46 (0.04) | |
| Distance | [pc] | 2954.21 (518) | 2182.93 (189) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 3.451 (0.1) | 3.567 (0.05) | |
| Proper motion (declination) | [mas/yr] | -6.331 (0.09) | -6.241 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.01 | |||
| V magnitude | 14.98 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.34 (0.05) | 15.34 (0.05) | ||
| H magnitude | 15.20 (0.08) | 15.20 (0.08) | ||
| K magnitude | 15.22 (0.1) | 15.22 (0.1) | ||
| u magnitude | 14.44 (0.004) | 14.44 (0.004) | ||
| g magnitude | 14.70 (0.003) | 14.70 (0.003) | ||
| r magnitude | 15.15 (0.003) | 15.15 (0.003) | ||
| i magnitude | 15.48 (0.004) | 15.48 (0.004) | ||
| z magnitude | 15.76 (0.006) | 15.76 (0.006) | ||
| G magnitude | 14.92 (0.0008) | 14.91 (0.003) | ||
| BP magnitude | 14.71 (0.01) | |||
| RP magnitude | 15.14 (0.004) | |||
| Pan g magnitude | 14.74 (0.002) | |||
| Pan r magnitude | 15.15 (0.003) | |||
| Pan i magnitude | 15.47 (0.004) | |||
| Pan z magnitude | 15.71 (0.002) | |||
| Pan y magnitude | 15.87 (0.006) | |||
| E(B-V) | 0.018 | |||
* 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.