All names: UCAC2 37660503, Gaia DR3 3313138360548062336, KUV 04369+1640, UCAC4 534-009433, Gaia DR2 3313138360548062336, KUV04369+1640, 2MASS J04394629+1645517, TIC 245913768
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 04 39 46.27 | 04 39 46.29 (0.04) | ||
| Declination | 16 45 51.78 | 16 45 51.75 (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] | 1.14 (0.07) | 1.20 (0.05) | |
| Distance | [pc] | 873.97 (51) | 835.63 (35) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 8.468 (0.1) | 8.207 (0.05) | |
| Proper motion (declination) | [mas/yr] | -2.028 (0.05) | -1.945 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 16.20 | |||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 14.18 (0.02) | 14.18 (0.02) | ||
| H magnitude | 13.68 (0.03) | 13.68 (0.03) | ||
| K magnitude | 13.56 (0.04) | 13.56 (0.04) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 16.01 (0.0004) | 16.00 (0.003) | ||
| BP magnitude | 16.67 (0.004) | |||
| RP magnitude | 15.21 (0.002) | |||
| Pan g magnitude | 16.85 (0.004) | |||
| Pan r magnitude | 16.01 (0.002) | |||
| Pan i magnitude | 15.60 (0.002) | |||
| Pan z magnitude | 15.38 (0.009) | |||
| Pan y magnitude | 15.22 (0.003) | |||
| E(B-V) | 0.282 | |||
* 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.