All names: TIC 178081355, FBS 0315+417, 2MASS J03182307+4155218, Gaia DR3 239492156726524544, FBS B 235, SDSS J031823.06+415521.7, Gaia DR2 239492156726524544, SDSSJ031823.06+415521.7
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 03 18 23.06 | 03 18 23.07 (0.04) | ||
| Declination | 41 55 21.70 | 41 55 21.76 (0.04) | ||
| Spectral type | sdOB | sdB0.2He10+G/K | ||
| Effective temperature | [K] | 33841.0 (904) | ||
| log(g) | [cgs] | 5.72 (0.1) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.90 (0.08) | 0.88 (0.06) | |
| Distance | [pc] | 1111.36 (96) | 1137.53 (72) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -5.065 (0.2) | -5.381 (0.06) | |
| Proper motion (declination) | [mas/yr] | -7.692 (0.1) | -7.87 (0.06) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.57 | |||
| V magnitude | 14.62 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 14.69 (0.04) | 14.69 (0.04) | ||
| H magnitude | 14.52 (0.06) | 14.52 (0.06) | ||
| K magnitude | 14.34 (0.07) | 14.34 (0.07) | ||
| u magnitude | 14.46 (0.004) | 14.46 (0.004) | ||
| g magnitude | 14.60 (0.004) | 14.60 (0.004) | ||
| r magnitude | 14.93 (0.004) | 14.93 (0.004) | ||
| i magnitude | 15.12 (0.005) | 15.12 (0.005) | ||
| z magnitude | 15.31 (0.006) | 15.31 (0.006) | ||
| G magnitude | 14.78 (0.0007) | 14.77 (0.003) | ||
| BP magnitude | 14.66 (0.006) | |||
| RP magnitude | 14.82 (0.002) | |||
| Pan g magnitude | 14.71 (0.003) | |||
| Pan r magnitude | 14.96 (0.001) | |||
| Pan i magnitude | 15.17 (0.002) | |||
| Pan z magnitude | 15.31 (0.005) | |||
| Pan y magnitude | 15.39 (0.002) | |||
| E(B-V) | 0.189 | |||
* 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.