All names: EPIC 246683636, ATO J071.2370+14.3639, Gaia DR3 3308791681845675136, KUV04421+1416, GALEX J044456.9+142150, V* V1405 Ori, Gaia DR2 3308791681845675136, KUV 04421+1416, LAMOST J044456.90+142150.0, TIC 436579904, 2MASS J04445689+1421502, KUV 685-10, GSC 00695-01437
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 04 44 56.89 | 04 44 56.90 (0.02) | ||
| Declination | 14 21 50.50 | 14 21 50.18 (0.01) | ||
| Spectral type | sdBV+dM | sdB | ||
| Effective temperature | [K] | 35100.0 (800) | ||
| log(g) | [cgs] | 5.66 (0.1) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 1.40 (0.04) | 1.44 (0.03) | |
| Distance | [pc] | 713.27 (19) | 694.11 (14) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 0.897 (0.07) | 1.003 (0.03) | |
| Proper motion (declination) | [mas/yr] | -6.695 (0.04) | -6.708 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.28 | |||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 14.57 (0.03) | 14.57 (0.03) | ||
| H magnitude | 14.68 (0.05) | 14.68 (0.05) | ||
| K magnitude | 14.46 (0.08) | 14.46 (0.08) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 14.97 (0.003) | 14.95 (0.004) | ||
| BP magnitude | 15.06 (0.008) | |||
| RP magnitude | 14.72 (0.01) | |||
| Pan g magnitude | 15.09 (0.02) | |||
| Pan r magnitude | 15.06 (0.009) | |||
| Pan i magnitude | 15.12 (0.01) | |||
| Pan z magnitude | 15.14 (0.04) | |||
| Pan y magnitude | 15.26 (0.01) | |||
| E(B-V) | 0.242 | |||
* 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.