All names: KUV 04284+0836, KUV04284+0836, GALEX J043108.1+084209, Gaia DR3 3287498917617511936, Gaia DR2 3287498917617511936, TIC 373031323, 2MASS J04310816+0842086
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 04 31 08.16 | 04 31 08.17 (0.04) | ||
| Declination | 08 42 09.02 | 08 42 08.60 (0.02) | ||
| Spectral type | sdB | sdB | ||
| 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] | 0.18 (0.07) | 0.27 (0.04) | |
| Distance | [pc] | 5567.93 (2086) | 3707.82 (590) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 4.308 (0.1) | 4.318 (0.05) | |
| Proper motion (declination) | [mas/yr] | -6.241 (0.07) | -6.183 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 16.00 | |||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.01 (0.04) | 15.01 (0.04) | ||
| H magnitude | 14.69 (0.06) | 14.69 (0.06) | ||
| K magnitude | 14.61 (0.07) | 14.61 (0.07) | ||
| u magnitude | 16.86 (0.008) | |||
| g magnitude | 16.26 (0.004) | |||
| r magnitude | 16.00 (0.004) | |||
| i magnitude | 15.89 (0.005) | |||
| z magnitude | 15.84 (0.007) | |||
| G magnitude | 15.99 (0.0007) | 15.98 (0.003) | ||
| BP magnitude | 16.23 (0.004) | |||
| RP magnitude | 15.57 (0.003) | |||
| Pan g magnitude | 16.25 (0.004) | |||
| Pan r magnitude | 16.00 (0.002) | |||
| Pan i magnitude | 15.91 (0.006) | |||
| Pan z magnitude | 15.88 (0.004) | |||
| Pan y magnitude | 15.85 (0.006) | |||
| E(B-V) | 0.209 | |||
* 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.