All names: PG 1310+179, Gaia DR2 3937241226560203136, Gaia DR3 3937241226560203136, WISEA J131248.78+174101.5, 2MASS J13124878+1741011, TIC 138172957, LAMOST J131248.78+174101.4, LAMOST J131248.79+174101.6, SDSS J131248.79+174101.6, WISE J131248.79+174101.6, PG1310+179, SDSS J131248.80+174101.6, UCAC4 539-052444, UCAC2 38080383, Balloon 81300001
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 13 12 48.76 | 13 12 48.78 (0.03) | ||
| Declination | 17 41 02.33 | 17 41 01.70 (0.02) | ||
| Spectral type | sdOB | sdB+? | ||
| Effective temperature | [K] | 34650.0 (486) | ||
| log(g) | [cgs] | 5.40 (0.08) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.66 (0.05) | 0.65 (0.04) | |
| Distance | [pc] | 1506.70 (112) | 1549.19 (96) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 2.714 (0.1) | 2.56 (0.05) | |
| Proper motion (declination) | [mas/yr] | -10.327 (0.07) | -9.779 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.25 (0.02) | |||
| V magnitude | 15.37 (0.03) | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.18 (0.05) | 15.18 (0.05) | ||
| H magnitude | 14.89 (0.08) | 14.89 (0.08) | ||
| K magnitude | 14.80 (0.1) | 14.80 (0.1) | ||
| u magnitude | 14.91 (0.005) | 14.91 (0.005) | ||
| g magnitude | 15.16 (0.004) | 15.16 (0.004) | ||
| r magnitude | 15.49 (0.004) | 15.49 (0.004) | ||
| i magnitude | 15.67 (0.004) | 15.67 (0.004) | ||
| z magnitude | 15.80 (0.007) | 15.80 (0.007) | ||
| G magnitude | 15.31 (0.0006) | 15.29 (0.003) | ||
| BP magnitude | 15.16 (0.007) | |||
| RP magnitude | 15.36 (0.002) | |||
| Pan g magnitude | 15.22 (0.004) | |||
| Pan r magnitude | 15.51 (0.002) | |||
| Pan i magnitude | 15.71 (0.003) | |||
| Pan z magnitude | 15.85 (0.007) | |||
| Pan y magnitude | 15.90 (0.006) | |||
| E(B-V) | 0.024 | |||
* 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.