All names: LAMOSTJ054711.59+170919.5, WISEA J054711.61+170919.1, TIC 247664539, Gaia DR2 3396486324095591040, WISE J054711.61+170919.4, Gaia DR3 3396486324095591040, LAMOST J054711.59+170919.5, 2MASS J05471159+1709199, UCAC4 536-018919, Gaia EDR3 3396486324095591040
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 05 47 11.60 (0.06) | 05 47 11.60 | 05 47 11.59 (0.06) | ||
| Declination | 17 09 19.55 (0.04) | 17 09 19.55 | 17 09 19.60 (0.04) | ||
| Spectral type | He-sdOB | sdBHe | |||
| Effective temperature | [K] | 36050.0 (1680) | |||
| log(g) | [cgs] | 5.53 (0.08) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.77 (0.06) | 0.83 (0.1) | 0.77 (0.06) | |
| Distance | [pc] | 1290.82 (102) | 1209.48 (165) | 1290.82 (102) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 3.581 (0.07) | 3.387 (0.3) | 3.581 (0.07) | |
| Proper motion (declination) | [mas/yr] | -3.051 (0.04) | -2.67 (0.3) | -3.051 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 16.48 (0.06) | ||||
| V magnitude | 16.50 (0.01) | ||||
| R magnitude | 16.43 (0.1) | ||||
| I magnitude | |||||
| J magnitude | 16.66 (0.1) | 16.66 (0.1) | |||
| H magnitude | 16.27 (0.2) | 16.27 (0.2) | |||
| K magnitude | 16.80 | ||||
| u magnitude | |||||
| g magnitude | 16.52 (0.01) | ||||
| r magnitude | 16.43 (0.01) | ||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 16.37 (0.003) | 16.40 (0.002) | 16.37 (0.003) | ||
| BP magnitude | 16.35 (0.005) | 16.26 (0.01) | |||
| RP magnitude | 16.42 (0.006) | 16.41 (0.004) | |||
| Pan g magnitude | 16.34 (0.004) | ||||
| Pan r magnitude | 16.53 (0.002) | ||||
| Pan i magnitude | 16.75 (0.006) | ||||
| Pan z magnitude | 16.93 (0.006) | ||||
| Pan y magnitude | 17.05 (0.007) | ||||
| E(B-V) | 0.214 | ||||
* 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.