All names: UCAC4 521-009535, SDSSJ045437.43+140124.1, SDSS J045437.43+140124.1, Gaia DR3 3392635490776132864, GALEX J045437.4+140125, 2MASS J04543743+1401244, SDSS J045437.44+140124.4, Gaia DR2 3392635490776132864, TIC 436682542
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 04 54 37.44 | 04 54 37.44 (0.02) | ||
| Declination | 14 01 24.41 | 14 01 24.43 (0.008) | ||
| Spectral type | sd | sd+F | ||
| 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] | 0.92 (0.03) | 1.08 (0.02) | |
| Distance | [pc] | 1092.30 (40) | 922.08 (18) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 0.07 (0.05) | -0.245 (0.02) | |
| Proper motion (declination) | [mas/yr] | 3.101 (0.03) | 3.376 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.91 (0.02) | |||
| V magnitude | 13.49 (0.01) | |||
| R magnitude | 13.45 (0.07) | |||
| I magnitude | ||||
| J magnitude | 12.49 (0.02) | 12.49 (0.02) | ||
| H magnitude | 12.36 (0.02) | 12.36 (0.02) | ||
| K magnitude | 12.29 (0.02) | 12.29 (0.02) | ||
| u magnitude | 14.93 (0.006) | 14.93 (0.006) | ||
| g magnitude | 13.64 (0.03) | |||
| r magnitude | 13.56 (0.002) | 13.42 (0.02) | ||
| i magnitude | 13.49 (0.001) | 13.33 (0.02) | ||
| z magnitude | 13.48 (0.006) | 13.48 (0.006) | ||
| G magnitude | 13.39 (0.0002) | 13.38 (0.003) | ||
| BP magnitude | 13.61 (0.002) | |||
| RP magnitude | 13.01 (0.001) | |||
| Pan g magnitude | 13.43 (0.2) | |||
| Pan r magnitude | 13.44 | |||
| Pan i magnitude | 13.38 | |||
| Pan z magnitude | 13.36 (0.01) | |||
| Pan y magnitude | 13.32 (0.006) | |||
| E(B-V) | 0.260 | |||
* 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.