All names: GALEX J142138.2+075320, BPS CS 22883-0025, WISEA J142138.16+075319.7, UCAC4 490-058841, PG 1419+081, PG1419+081, V* KN Boo, Gaia DR2 3673736938474590720, TIC 421756275, Gaia DR3 3673736938474590720, 2MASS J14213817+0753196, BPS BS 16546-0058, UCAC2 34473723, SDSS J142138.17+075319.5, WISE J142138.16+075319.8
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 14 21 38.26 | 14 21 38.18 (0.04) | ||
| Declination | 07 53 19.70 | 07 53 19.62 (0.03) | ||
| Spectral type | sdBV+G5 | sdB+G5 | ||
| Effective temperature | [K] | 33300.0 | ||
| log(g) | [cgs] | 5.85 | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.29 (0.07) | 0.55 (0.05) | |
| Distance | [pc] | 3432.89 (816) | 1834.86 (156) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -27.261 (0.1) | -27.233 (0.05) | |
| Proper motion (declination) | [mas/yr] | 1.193 (0.1) | 1.389 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.03 (0.08) | |||
| V magnitude | 15.10 (0.07) | |||
| R magnitude | 15.34 (0.2) | |||
| I magnitude | ||||
| J magnitude | 14.84 (0.04) | 14.84 (0.04) | ||
| H magnitude | 14.56 (0.05) | 14.56 (0.05) | ||
| K magnitude | 14.59 (0.1) | 14.59 (0.1) | ||
| u magnitude | 14.67 (0.004) | 14.67 (0.004) | ||
| g magnitude | 14.85 (0.004) | 14.85 (0.004) | ||
| r magnitude | 15.15 (0.004) | 15.15 (0.004) | ||
| i magnitude | 15.31 (0.005) | 15.31 (0.005) | ||
| z magnitude | 15.49 (0.006) | 15.49 (0.006) | ||
| G magnitude | 14.99 (0.001) | 14.98 (0.003) | ||
| BP magnitude | 14.88 (0.02) | |||
| RP magnitude | 14.99 (0.003) | |||
| Pan g magnitude | 14.92 (0.004) | |||
| Pan r magnitude | 15.17 (0.004) | |||
| Pan i magnitude | 15.34 (0.002) | |||
| Pan z magnitude | 15.46 (0.003) | |||
| Pan y magnitude | 15.51 (0.005) | |||
| E(B-V) | 0.024 | |||
* 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.