All names: SDSS J131917.40+205715.8, Gaia DR3 3940518836361346304, LAMOST J131917.40+205715.8, 2MASS J13191740+2057160, LAMOST J131917.40+205715.9, PG1316+212, Gaia DR2 3940518836361346304, Balloon 112728003, TIC 450337952, PG 1316+212, GALEX J131917.4+205716
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 13 19 17.44 | 13 19 17.41 (0.04) | ||
| Declination | 20 57 17.02 | 20 57 16.00 (0.03) | ||
| Spectral type | He-sdO | sdO | ||
| Effective temperature | [K] | 51410.0 (980) | ||
| log(g) | [cgs] | 5.50 (0.05) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.40 (0.06) | 0.40 (0.05) | |
| Distance | [pc] | 2490.66 (344) | 2484.47 (308) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -12.624 (0.1) | -12.552 (0.05) | |
| Proper motion (declination) | [mas/yr] | -19.174 (0.09) | -19.06 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.72 | |||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.88 (0.08) | 15.88 (0.08) | ||
| H magnitude | 16.35 (0.3) | 16.35 (0.3) | ||
| K magnitude | 15.99 | |||
| u magnitude | 14.48 (0.004) | 14.48 (0.004) | ||
| g magnitude | 14.86 (0.003) | 14.86 (0.003) | ||
| r magnitude | 15.40 (0.004) | 15.40 (0.004) | ||
| i magnitude | 15.76 (0.004) | 15.76 (0.004) | ||
| z magnitude | 16.10 (0.007) | 16.10 (0.007) | ||
| G magnitude | 15.15 (0.0007) | 15.13 (0.003) | ||
| BP magnitude | 14.90 (0.005) | |||
| RP magnitude | 15.45 (0.002) | |||
| Pan g magnitude | 14.97 (0.002) | |||
| Pan r magnitude | 15.41 (0.002) | |||
| Pan i magnitude | 15.79 (0.003) | |||
| Pan z magnitude | 16.06 (0.003) | |||
| Pan y magnitude | 16.28 (0.003) | |||
| E(B-V) | 0.023 | |||
* 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.