All names: SDSS J041549.68+303515.3, TIC 85847279, Gaia DR3 165787700429000064, SDSSJ041549.68+303515.3, Gaia DR2 165787700429000064, LAMOST J041549.68+303515.2, 2MASS J04154968+3035156
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 04 15 49.68 | 04 15 49.68 (0.05) | ||
| Declination | 30 35 15.32 | 30 35 15.31 (0.03) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | 21557.0 (412) | ||
| log(g) | [cgs] | 5.13 (0.06) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.39 (0.07) | 0.39 (0.05) | |
| Distance | [pc] | 2543.23 (426) | 2569.37 (362) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 1.474 (0.2) | 1.192 (0.07) | |
| Proper motion (declination) | [mas/yr] | -1.979 (0.1) | -2.486 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.19 (0.09) | 16.19 (0.09) | ||
| H magnitude | 16.23 (0.2) | 16.23 (0.2) | ||
| K magnitude | 15.85 (0.2) | 15.85 (0.2) | ||
| u magnitude | 16.79 (0.007) | 16.79 (0.007) | ||
| g magnitude | 16.41 (0.004) | 16.41 (0.004) | ||
| r magnitude | 16.53 (0.004) | 16.53 (0.004) | ||
| i magnitude | 16.66 (0.005) | 16.66 (0.005) | ||
| z magnitude | 16.81 (0.009) | 16.81 (0.009) | ||
| G magnitude | 16.46 (0.0009) | 16.44 (0.003) | ||
| BP magnitude | 16.47 (0.005) | |||
| RP magnitude | 16.37 (0.004) | |||
| Pan g magnitude | 16.44 (0.009) | |||
| Pan r magnitude | 16.54 (0.004) | |||
| Pan i magnitude | 16.70 (0.004) | |||
| Pan z magnitude | 16.82 (0.003) | |||
| Pan y magnitude | 16.92 (0.01) | |||
| E(B-V) | 0.323 | |||
* 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.