All names: UCAC4 658-017757, TIC 200935917, Gaia DR3 237133566847520000, LAMOST J033847.06+413424.2, GALEX J033847.1+413424, LAMOSTJ033847.06+413424.2, Gaia EDR3 237133566847520000, SDSS J033847.07+413424.1, 2MASS J03384706+4134241, Gaia DR2 237133566847520000
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 03 38 47.07 (0.03) | 03 38 47.07 | 03 38 47.08 (0.03) | ||
| Declination | 41 34 24.10 (0.02) | 41 34 24.21 | 41 34 24.19 (0.02) | ||
| Spectral type | sdB | sdB | |||
| Effective temperature | [K] | 21457.0 (183) | |||
| log(g) | [cgs] | 5.73 (0.03) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.65 (0.03) | 1.62 (0.04) | 1.65 (0.03) | |
| Distance | [pc] | 607.20 (12) | 616.52 (17) | 607.20 (12) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -5.423 (0.04) | -5.633 (0.1) | -5.423 (0.04) | |
| Proper motion (declination) | [mas/yr] | -5.79 (0.03) | -5.646 (0.07) | -5.79 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.08 (0.1) | ||||
| V magnitude | 15.11 (0.09) | ||||
| R magnitude | 15.09 (0.1) | ||||
| I magnitude | |||||
| J magnitude | 15.32 (0.04) | 15.32 (0.04) | |||
| H magnitude | 15.38 (0.09) | 15.38 (0.09) | |||
| K magnitude | 15.34 (0.2) | 15.34 (0.2) | |||
| u magnitude | 15.15 (0.004) | 15.16 (0.004) | |||
| g magnitude | 14.95 (0.003) | 14.96 (0.004) | |||
| r magnitude | 15.20 (0.003) | 15.21 (0.004) | |||
| i magnitude | 15.42 (0.003) | 15.43 (0.004) | |||
| z magnitude | 15.63 (0.005) | 15.66 (0.006) | |||
| G magnitude | 15.09 (0.003) | 15.11 (0.0006) | 15.09 (0.003) | ||
| BP magnitude | 15.06 (0.003) | 15.04 (0.005) | |||
| RP magnitude | 15.12 (0.004) | 15.13 (0.002) | |||
| Pan g magnitude | 15.05 (0) | ||||
| Pan r magnitude | 15.24 (0.003) | ||||
| Pan i magnitude | 15.46 (0.002) | ||||
| Pan z magnitude | 15.66 (0.003) | ||||
| Pan y magnitude | 15.76 (0.005) | ||||
| E(B-V) | 0.185 | ||||
* 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.