All names: GALEX J212102.2+125048, PG2118+126, Gaia DR3 1746937544892092416, Gaia DR2 1746937544892092416, SDSS J212102.27+125049.8, TIC 60496471, [TFW97] J212102.28+125049.76, PG 2118+126, 2MASS J21210228+1250498, UCAC4 515-135931
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 21 21 02.29 | 21 21 02.27 (0.02) | ||
| Declination | 12 50 50.52 | 12 50 49.88 (0.02) | ||
| Spectral type | sdB | sdO+F8V | ||
| Effective temperature | [K] | |||
| log(g) | [cgs] | |||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.69 (0.04) | 0.71 (0.02) | |
| Distance | [pc] | 1456.45 (89) | 1403.71 (43) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 0.277 (0.06) | -0.08 (0.02) | |
| Proper motion (declination) | [mas/yr] | -1.56 (0.06) | -1.633 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.77 (0.02) | |||
| V magnitude | 13.62 (0.07) | |||
| R magnitude | 13.63 (0.06) | |||
| I magnitude | ||||
| J magnitude | 13.03 (0.02) | 13.03 (0.02) | ||
| H magnitude | 12.82 (0.03) | 12.82 (0.03) | ||
| K magnitude | 12.79 (0.03) | 12.79 (0.03) | ||
| u magnitude | 13.68 (0.003) | 13.68 (0.003) | ||
| g magnitude | 13.55 (0.003) | 13.63 (0.04) | ||
| r magnitude | 13.55 (0.003) | 13.75 (0.3) | ||
| i magnitude | 13.58 (0.003) | 13.65 (0.4) | ||
| z magnitude | 13.66 (0.004) | 13.66 (0.004) | ||
| G magnitude | 13.51 (0.0005) | 13.49 (0.003) | ||
| BP magnitude | 13.57 (0.005) | |||
| RP magnitude | 13.29 (0.002) | |||
| Pan g magnitude | 13.60 (0.009) | |||
| Pan r magnitude | 13.59 (0.002) | |||
| Pan i magnitude | 13.75 (0.002) | |||
| Pan z magnitude | 13.71 (0.003) | |||
| Pan y magnitude | 13.72 (0.002) | |||
| E(B-V) | 0.064 | |||
* 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.