All names: WD 2146+412, 2MASS J21485619+4131219, Gaia EDR3 1960509878933262080, Gaia DR3 1960509878933262080, WISEA J214856.20+413121.9, TIC 418652140, WISE J214856.21+413121.8, UCAC4 658-103304, Gaia DR2 1960509878933262080, KPD 2146+4117
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|
| Right ascension | 21 48 56.20 (0.03) | 21 48 56.20 (0.03) | 21 48 56.20 (0.03) | 21 48 55.68 | |||
| Declination | 41 31 21.88 (0.03) | 41 31 21.88 (0.04) | 41 31 21.90 (0.03) | 41 31 18.12 | |||
| Spectral type | DBA | sdB | |||||
| 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] | 0.34 (0.04) | 0.43 (0.05) | 0.34 (0.04) | |||
| Distance | [pc] | 2948.75 (364) | 2341.37 (265) | 2948.98 (364) | |||
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | -1.541775966 (0.04) | -1.483 (0.07) | -1.542 (0.04) | |||
| Proper motion (declination) | [mas/yr] | -1.648988022 (0.04) | -1.697 (0.07) | -1.649 (0.04) | |||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | |||||||
| B magnitude | 17.40 (0.1) | ||||||
| V magnitude | 16.61 (0.01) | ||||||
| R magnitude | 16.57 (0.1) | ||||||
| I magnitude | |||||||
| J magnitude | 14.81 (0.04) | ||||||
| H magnitude | 14.60 (0.07) | ||||||
| K magnitude | 14.44 (0.07) | ||||||
| u magnitude | |||||||
| g magnitude | 16.96 (0.08) | ||||||
| r magnitude | 16.35 (0.1) | ||||||
| i magnitude | |||||||
| z magnitude | |||||||
| G magnitude | 16.36 (0.003) | 16.37 | 16.36 (0.003) | ||||
| BP magnitude | 16.85 (0.003) | 16.88 | |||||
| RP magnitude | 15.70 (0.002) | 15.71 | |||||
| Pan g magnitude | 16.97 (0.004) | ||||||
| Pan r magnitude | 16.35 (0.005) | ||||||
| Pan i magnitude | 16.07 (0.002) | ||||||
| Pan z magnitude | 15.95 (0.003) | ||||||
| Pan y magnitude | 15.84 (0.003) | ||||||
| E(B-V) | 0.275 | ||||||
* 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.