All names: SDSS J064303.40+374414.5, Gaia DR2 944002617314641152, UCAC4 639-036223, GALEX J064303.4+374414, LAMOST J064303.39+374414.4, Gaia DR3 944002617314641152, 2MASS J06430340+3744146, SDSSJ064303.40+374414.5
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 06 43 03.40 | 06 43 03.40 (0.04) | ||
| Declination | 37 44 14.52 | 37 44 14.58 (0.03) | ||
| Spectral type | sd | sdB/sdO | ||
| 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] | 0.65 (0.05) | 0.57 (0.05) | |
| Distance | [pc] | 1540.59 (114) | 1763.36 (144) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 4.865 (0.08) | 4.382 (0.05) | |
| Proper motion (declination) | [mas/yr] | -7.197 (0.07) | -6.981 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.24 (0.05) | |||
| V magnitude | 14.99 (0.03) | |||
| R magnitude | 15.43 (0.2) | |||
| I magnitude | ||||
| J magnitude | 14.63 (0.06) | 14.63 (0.06) | ||
| H magnitude | 14.35 (0.06) | 14.35 (0.06) | ||
| K magnitude | 14.33 (0.07) | 14.33 (0.07) | ||
| u magnitude | 15.40 (0.005) | 15.40 (0.005) | ||
| g magnitude | 15.27 (0.004) | 15.07 (0.01) | ||
| r magnitude | 15.32 (0.004) | 14.94 (0.02) | ||
| i magnitude | 15.34 (0.005) | 14.89 (0.09) | ||
| z magnitude | 15.38 (0.006) | 15.38 (0.006) | ||
| G magnitude | 15.25 (0.0008) | 15.23 (0.003) | ||
| BP magnitude | 15.30 (0.007) | |||
| RP magnitude | 15.01 (0.003) | |||
| Pan g magnitude | 15.32 (0.002) | |||
| Pan r magnitude | 15.32 (0.001) | |||
| Pan i magnitude | 15.35 (0.004) | |||
| Pan z magnitude | 15.39 (0.002) | |||
| Pan y magnitude | 15.41 (0.006) | |||
| E(B-V) | 0.111 | |||
* 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.