All names: PG 2115+145, 2MASS J21180327+1440540, TIC 372947124, UCAC2 37099409, WISEA J211803.26+144053.9, UCAC4 524-140972, GALEX J211803.1+144054, LAMOST J211803.27+144053.9, WISE J211803.27+144053.9, Gaia DR3 1759463868550744576, Gaia DR2 1759463868550744576, LAMOST J211803.27+144053.8, PG2115+145, Gaia EDR3 1759463868550744576
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 21 18 03.28 (0.03) | 21 18 03.26 | 21 18 03.27 (0.03) | ||
| Declination | 14 40 53.88 (0.03) | 14 40 54.54 | 14 40 54.01 (0.03) | ||
| Spectral type | sdB | sdB | |||
| Effective temperature | [K] | 28960.0 (70) | |||
| log(g) | [cgs] | 5.60 (0.02) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.89 (0.04) | 0.83 (0.05) | 0.89 (0.04) | |
| Distance | [pc] | 1120.07 (52) | 1204.24 (80) | 1120.07 (52) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 5.11 (0.04) | 5.157 (0.09) | 5.11 (0.04) | |
| Proper motion (declination) | [mas/yr] | -8.144 (0.03) | -8.081 (0.09) | -8.144 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.98 (0.02) | ||||
| V magnitude | 14.98 (0.01) | ||||
| R magnitude | 15.37 (0.04) | ||||
| I magnitude | |||||
| J magnitude | 15.58 (0.07) | 15.58 (0.07) | |||
| H magnitude | 15.76 (0.2) | 15.76 (0.2) | |||
| K magnitude | 15.59 (0.2) | 15.59 (0.2) | |||
| u magnitude | |||||
| g magnitude | 14.95 (0.01) | ||||
| r magnitude | 15.22 (0.01) | ||||
| i magnitude | 15.59 (0.01) | ||||
| z magnitude | |||||
| G magnitude | 15.05 (0.003) | 15.06 (0.0009) | 15.05 (0.003) | ||
| BP magnitude | 14.94 (0.003) | 14.89 (0.009) | |||
| RP magnitude | 15.25 (0.004) | 15.25 (0.003) | |||
| Pan g magnitude | 14.88 (0.009) | ||||
| Pan r magnitude | 15.26 (0.005) | ||||
| Pan i magnitude | 15.58 (0.002) | ||||
| Pan z magnitude | 15.82 (0.004) | ||||
| Pan y magnitude | 15.98 (0.006) | ||||
| E(B-V) | 0.072 | ||||
* 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.