All names: GALEX J041242.9+404125, Gaia DR2 228579606900931968, 2MASS J04124293+4041256, Lan 532, TIC 347339320, Gaia EDR3 228579606900931968, Gaia DR3 228579606900931968
| Parameter | Unit | Gaia EDR3 | Stilism | Lepine et al. 2011 | Vincent et al. 2024 | Simbad |
|---|---|---|---|---|---|---|
| Right ascension | 04 12 43.02 (0.06) | 04 12 43.02 | 04 12 42.99 (0.06) | |||
| Declination | 40 41 24.86 (0.04) | 40 41 24.86 | 40 41 25.54 (0.04) | |||
| Spectral type | DA1.5 | DA | DA1.5 | |||
| Effective temperature | [K] | 34040.0 (536) | 31142.0 (1079) | |||
| log(g) | [cgs] | 8.62 (0.06) | 8.52 (0.03) | |||
| Mass | [M☉] | 1.02 (0.04) | 0.956 (0.03) | |||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | 0.0480 | ||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 7.03 (0.07) | 7.03 | 7.03 (0.07) | ||
| Distance | [pc] | 142.26 (1) | 148.00 | 142.26 | 142.26 (1) | |
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | 17.746 (0.07) | 17.746 (0.07) | |||
| Proper motion (declination) | [mas/yr] | -42.856 (0.05) | -42.856 (0.05) | |||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | 16.40 | |||||
| V magnitude | 16.63 | |||||
| R magnitude | 16.90 | |||||
| I magnitude | 17.00 | |||||
| J magnitude | 17.05 (0.1) | |||||
| H magnitude | 16.87 (0.3) | |||||
| K magnitude | ||||||
| u magnitude | ||||||
| g magnitude | ||||||
| r magnitude | ||||||
| i magnitude | ||||||
| z magnitude | ||||||
| G magnitude | 16.53 (0.003) | 16.53 | 16.53 (0.003) | |||
| BP magnitude | 16.39 (0.005) | |||||
| RP magnitude | 16.79 (0.009) | |||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.036 | |||||
* 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.