All names: Gaia EDR3 2108158652560675328, Gaia DR3 2108158691218514176, 2MASS J18243440+3800555, TIC 288758094, WISE J182434.36+380055.4, Gaia DR2 2108158691218514176, UCAC4 641-059796, WISEA J182434.35+380055.6, UCAC2 45189636, O11J182434+380054
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 18 24 31.65 (0.3) | 18 24 34.00 | 18 24 34.39 (0.03) | ||
| Declination | 37 59 43.68 (0.4) | 38 00 54.00 | 38 00 55.68 (0.03) | ||
| Spectral type | sd | ||||
| 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] | 0.82 (0.4) | 0.06 (0.06) | 0.04 (0.04) | |
| Distance | [pc] | 1221.60 (634) | 17793.59 (18965) | 24271.84 (22799) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -2.974 (0.5) | -1.959 (0.1) | -1.905 (0.04) | |
| Proper motion (declination) | [mas/yr] | -5.137 (0.5) | -1.346 (0.1) | -1.304 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | 16.14 (0.3) | ||||
| I magnitude | |||||
| J magnitude | 16.39 (0.1) | 16.39 (0.1) | |||
| H magnitude | 16.94 | ||||
| K magnitude | 15.74 | ||||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 20.03 (0.006) | 16.01 (0.001) | 15.98 (0.003) | ||
| BP magnitude | 20.22 (0.08) | 15.86 (0.005) | |||
| RP magnitude | 19.60 (0.07) | 16.15 (0.005) | |||
| Pan g magnitude | 15.83 (0.004) | ||||
| Pan r magnitude | 16.19 (0.002) | ||||
| Pan i magnitude | 16.50 (0.002) | ||||
| Pan z magnitude | 16.72 (0.005) | ||||
| Pan y magnitude | 16.86 (0.005) | ||||
| E(B-V) | 0.041 | ||||
* 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.