All names: PG1316+449, GALEX J131846.9+443544, Gaia DR3 1550490241899314560, TIC 316275825, Gaia DR2 1550490241899314560, WISE J131847.09+443541.9, PG 1316+449, FBS B 321, LAMOST J131847.09+443542.0, 2MASS J13184709+4435421, PB 146, UCAC4 673-058191, FBS 1316+448
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 13 18 47.05 | 13 18 47.08 (0.02) | ||
| Declination | 44 35 43.04 | 44 35 42.19 (0.03) | ||
| Spectral type | He-sdOB | sdOD | ||
| Effective temperature | [K] | 42850.0 (100) | ||
| log(g) | [cgs] | 5.73 (0.01) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.48 (0.05) | 0.53 (0.04) | |
| Distance | [pc] | 2078.14 (205) | 1887.50 (127) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 2.613 (0.05) | 2.705 (0.03) | |
| Proper motion (declination) | [mas/yr] | -14.302 (0.07) | -14.224 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.65 (0.01) | |||
| V magnitude | 14.84 (0.02) | |||
| R magnitude | 15.11 (0.2) | |||
| I magnitude | ||||
| J magnitude | 15.61 (0.07) | 15.61 (0.07) | ||
| H magnitude | 16.02 (0.2) | 16.02 (0.2) | ||
| K magnitude | 15.81 (0.2) | 15.81 (0.2) | ||
| u magnitude | 14.28 (0.004) | |||
| g magnitude | 14.66 (0.004) | 14.63 (0.05) | ||
| r magnitude | 15.18 (0.005) | 15.06 (0.04) | ||
| i magnitude | 15.48 (0.006) | 15.44 (0.1) | ||
| z magnitude | 15.70 (0.007) | |||
| G magnitude | 14.77 (0.0007) | 14.75 (0.003) | ||
| BP magnitude | 14.51 (0.007) | |||
| RP magnitude | 15.07 (0.003) | |||
| Pan g magnitude | 14.58 (0.005) | |||
| Pan r magnitude | 15.02 (0.005) | |||
| Pan i magnitude | 15.41 (0.003) | |||
| Pan z magnitude | 15.70 (0.002) | |||
| Pan y magnitude | 15.88 (0.004) | |||
| 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.