All names: 2MASS J04430334+1500241, Gaia DR2 3309622259800652928, TIC 436566337, KUV04402+1455, KUV 685-9, KUV 04402+1455, GALEX J044303.3+150024, Gaia DR3 3309622259800652928
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 04 43 03.31 | 04 43 03.34 (0.01) | ||
| Declination | 15 00 24.67 | 15 00 24.06 (0.007) | ||
| Spectral type | sdO | 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] | 1.50 (0.03) | 1.55 (0.02) | |
| Distance | [pc] | 668.85 (16) | 646.45 (8) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 9.816 (0.08) | 9.724 (0.02) | |
| Proper motion (declination) | [mas/yr] | -11.785 (0.03) | -11.762 (0.01) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.18 | |||
| V magnitude | 13.97 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 13.43 (0.02) | 13.43 (0.02) | ||
| H magnitude | 13.40 (0.03) | 13.40 (0.03) | ||
| K magnitude | 13.36 (0.03) | 13.36 (0.03) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 13.90 (0.0003) | 13.89 (0.003) | ||
| BP magnitude | 14.01 (0.004) | |||
| RP magnitude | 13.63 (0.001) | |||
| Pan g magnitude | 14.07 (0.003) | |||
| Pan r magnitude | 13.95 (0.004) | |||
| Pan i magnitude | 13.95 (0.0001) | |||
| Pan z magnitude | 14.02 (0.005) | |||
| Pan y magnitude | 14.07 (0.002) | |||
| E(B-V) | 0.239 | |||
* 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.