All names: LAMOST J210219.30+013215.5, GSC 00526-00748, 2MASS J21021930+0132156, PG2059+013, TIC 396726970, Gaia EDR3 1729653290822954880, WISEA J210219.31+013215.4, GALEX J210219.3+013216, PG 2059+013, UCAC4 458-121240, NSV 25428, WISE J210219.32+013215.6, SDSS J210219.30+013215.6, USNO-B1.0 0915-00535000, Gaia DR2 1729653290822954880, Gaia DR3 1729653290822954880, UCAC2 32462249
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 21 02 19.31 (0.04) | 21 02 19.30 | 21 02 19.31 (0.04) | ||
| Declination | 01 32 15.61 (0.02) | 01 32 15.91 | 01 32 15.64 (0.02) | ||
| Spectral type | sdB | sdB1VIHe13 | |||
| Effective temperature | [K] | 32400.0 (1000) | |||
| log(g) | [cgs] | 5.80 (0.1) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.86 (0.04) | 0.95 (0.06) | 0.86 (0.04) | |
| Distance | [pc] | 1162.39 (61) | 1054.30 (64) | 1162.39 (61) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 1.952 (0.05) | 2.011 (0.09) | 1.952 (0.05) | |
| Proper motion (declination) | [mas/yr] | -1.599 (0.03) | -1.554 (0.07) | -1.599 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.90 | ||||
| V magnitude | |||||
| R magnitude | 15.38 (0.07) | ||||
| I magnitude | |||||
| J magnitude | 15.58 (0.04) | 15.58 (0.04) | |||
| H magnitude | 15.43 (0.08) | 15.43 (0.08) | |||
| K magnitude | 15.44 (0.2) | 15.44 (0.2) | |||
| u magnitude | 14.57 (0.004) | ||||
| g magnitude | 14.77 (0.003) | ||||
| r magnitude | 15.18 (0.003) | ||||
| i magnitude | 15.49 (0.004) | ||||
| z magnitude | 15.76 (0.006) | ||||
| G magnitude | 14.99 (0.003) | 15.00 (0.0006) | 14.99 (0.003) | ||
| BP magnitude | 14.87 (0.003) | 14.81 (0.006) | |||
| RP magnitude | 15.20 (0.004) | 15.19 (0.002) | |||
| Pan g magnitude | 14.85 (0.003) | ||||
| Pan r magnitude | 15.22 (0.002) | ||||
| Pan i magnitude | 15.54 (0.003) | ||||
| Pan z magnitude | 15.78 (0.003) | ||||
| Pan y magnitude | 15.94 (0.004) | ||||
| E(B-V) | 0.056 | ||||
* 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.