All names: Gaia DR3 963881581386403072, GALEX J064148.5+424821, FBS B 240, LAMOST J064148.56+424820.2, 2MASS J06414855+4248205, FBS 0638+428, UCAC2 46552921, UCAC4 665-048213, Gaia DR2 963881581386403072, TIC 274331770, FBS0638+428
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 06 41 48.67 | 06 41 48.56 (0.03) | ||
| Declination | 42 48 21.10 | 42 48 20.59 (0.03) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | 28140.0 (320) | ||
| log(g) | [cgs] | 5.56 (0.06) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 1.17 (0.05) | 1.17 (0.03) | |
| Distance | [pc] | 858.07 (36) | 852.73 (25) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 17.61 (0.08) | 17.656 (0.04) | |
| Proper motion (declination) | [mas/yr] | -32.054 (0.07) | -31.997 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.11 (0.03) | |||
| V magnitude | 14.21 (0.04) | |||
| R magnitude | 14.34 (0.2) | |||
| I magnitude | ||||
| J magnitude | 14.52 | |||
| H magnitude | 14.69 (0.07) | 14.69 (0.07) | ||
| K magnitude | 14.61 (0.1) | 14.61 (0.1) | ||
| u magnitude | ||||
| g magnitude | 14.07 (0.06) | |||
| r magnitude | 14.37 (0.06) | |||
| i magnitude | 14.66 (0.03) | |||
| z magnitude | ||||
| G magnitude | 14.20 (0.0006) | 14.18 (0.003) | ||
| BP magnitude | 14.04 (0.008) | |||
| RP magnitude | 14.34 (0.004) | |||
| Pan g magnitude | 14.05 (0.002) | |||
| Pan r magnitude | 14.38 (0.006) | |||
| Pan i magnitude | 14.70 (0.001) | |||
| Pan z magnitude | 14.92 (0.002) | |||
| Pan y magnitude | 15.07 (0.005) | |||
| E(B-V) | 0.105 | |||
* 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.