All names: Gaia DR3 1677696830924518912, UCAC4 772-036476, TIC 142398823, Gaia EDR3 1677696830924518912, 2MASS J13165834+6415225, SDSS J131658.34+641522.5, PG 1315+645, FBS B 708, SDSS J131658.35+641522.5, GALEX J131658.3+641522, FBS 1315+645, Gaia DR2 1677696830924518912, PG1315+645
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 13 16 58.33 (0.02) | 13 16 58.34 | 13 16 58.32 | 13 16 58.33 (0.03) | 13 16 58.35 (0.02) | 13 16 58.36 | |||
| Declination | 64 15 22.43 (0.02) | 64 15 22.56 | 64 15 22.66 | 64 15 22.43 (0.03) | 64 15 22.50 (0.02) | 64 15 22.55 | |||
| Spectral type | sdOB+MS | sdB+G | SDB+G | ||||||
| Effective temperature | [K] | 31539.0 (118) | |||||||
| log(g) | [cgs] | 5.00 (0.002) | |||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.62 (0.02) | 0.60 (0.03) | 0.60 (0.03) | 0.62 (0.02) | ||||
| Distance | [pc] | 1605.83 (58) | 1679.54 (90) | 1679.42 (90) | 1605.91 (58) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -6.091865291 (0.03) | -6.121 (0.06) | -6.121495695 (0.06) | -6.092 (0.03) | 2.5 | |||
| Proper motion (declination) | [mas/yr] | -4.533162732 (0.03) | -4.716 (0.06) | -4.71640526 (0.06) | -4.533 (0.03) | -2.7 | |||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 14.87 (0.02) | ||||||||
| V magnitude | 14.98 (0.03) | ||||||||
| R magnitude | 15.31 (0.1) | ||||||||
| I magnitude | |||||||||
| J magnitude | 14.60 (0.04) | 14.60 (0.04) | |||||||
| H magnitude | 14.43 (0.05) | 14.43 (0.05) | |||||||
| K magnitude | 14.35 (0.08) | 14.35 (0.08) | |||||||
| u magnitude | 14.91 (0.004) | 14.91 (0.004) | 14.91 (0.004) | 14.88 (0.04) | |||||
| g magnitude | 14.91 (0.003) | 14.91 (0.003) | 14.91 (0.003) | 14.94 (0.01) | |||||
| r magnitude | 15.07 (0.003) | 15.07 (0.003) | 15.07 (0.003) | 15.07 (0.01) | |||||
| i magnitude | 15.14 (0.003) | 15.14 (0.003) | 15.14 (0.003) | 15.14 (0.02) | |||||
| z magnitude | 15.25 (0.005) | 15.25 (0.005) | 15.25 (0.005) | 15.22 (0.03) | |||||
| G magnitude | 14.95 (0.002) | 14.97 (0.0006) | 14.97 | 14.95 (0.003) | |||||
| BP magnitude | 14.98 (0.002) | 14.94 (0.005) | 14.94 | ||||||
| RP magnitude | 14.84 (0.002) | 14.84 (0.003) | 14.84 | ||||||
| Pan g magnitude | 14.97 (0.003) | 14.96 (0.003) | |||||||
| Pan r magnitude | 15.09 (0.005) | 15.09 (0.005) | |||||||
| Pan i magnitude | 15.17 (0.002) | 15.17 (0.002) | |||||||
| Pan z magnitude | 15.27 (0.002) | 15.27 (0.002) | |||||||
| Pan y magnitude | 15.32 (0.003) | 15.32 (0.003) | |||||||
| E(B-V) | 0.017 | ||||||||
* 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.