All names: TIC 236880172, GALEX J201230.3+605842, Gaia DR2 2237095396151457024, SDSSJ201230.33+605841.8, Gaia DR3 2237095396151457024, 2MASS J20123034+6058415, SDSS J201230.34+605841.4, SDSS J201230.33+605841.8
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 20 12 30.34 | 20 12 30.35 (0.02) | ||
| Declination | 60 58 41.47 | 60 58 41.50 (0.02) | ||
| Spectral type | sd | sd+F/K | ||
| 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] | 0.42 (0.03) | 0.44 (0.02) | |
| Distance | [pc] | 2402.11 (158) | 2266.03 (112) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -13.441 (0.06) | -13.377 (0.03) | |
| Proper motion (declination) | [mas/yr] | -4.601 (0.05) | -4.633 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 14.61 (0.03) | 14.61 (0.03) | ||
| H magnitude | 14.37 (0.04) | 14.37 (0.04) | ||
| K magnitude | 14.19 (0.07) | 14.19 (0.07) | ||
| u magnitude | 16.02 (0.005) | 16.02 (0.02) | ||
| g magnitude | 15.59 (0.003) | 15.60 (0.008) | ||
| r magnitude | 15.42 (0.003) | 15.44 (0.008) | ||
| i magnitude | 15.36 (0.003) | 15.36 (0.009) | ||
| z magnitude | 15.36 (0.005) | 15.35 (0.01) | ||
| G magnitude | 15.40 (0.0006) | 15.38 (0.003) | ||
| BP magnitude | 15.56 (0.002) | |||
| RP magnitude | 15.04 (0.001) | |||
| Pan g magnitude | 15.60 (0.004) | |||
| Pan r magnitude | 15.44 (0.003) | |||
| Pan i magnitude | 15.38 (0.002) | |||
| Pan z magnitude | 15.40 (0.001) | |||
| Pan y magnitude | 15.38 (0.004) | |||
| E(B-V) | 0.153 | |||
* 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.