All names: 2MASS J07183490+1323338, SDSSJ071834.89+132333.8, Gaia EDR3 3166457320352526208, TIC 440857257, GALEX J071834.9+132333, SDSS J071834.89+132333.8, Gaia DR3 3166457805685461760, Gaia DR2 3166457805685461760
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 07 18 33.40 (0.7) | 07 18 34.89 | 07 18 34.89 (0.04) | ||
| Declination | 13 21 49.63 (0.6) | 13 23 33.85 | 13 23 33.81 (0.04) | ||
| Spectral type | sd | sd+F/K | |||
| 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] | 1.59 (0.7) | 0.24 (0.07) | 0.27 (0.04) | |
| Distance | [pc] | 627.86 (274) | 4189.36 (1258) | 3649.64 (598) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 7.206 (0.8) | 0.749 (0.1) | 0.858 (0.05) | |
| Proper motion (declination) | [mas/yr] | -8.777 (0.8) | -2.19 (0.1) | -1.879 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 15.45 (0.05) | 15.45 (0.05) | |||
| H magnitude | 14.98 (0.07) | 14.98 (0.07) | |||
| K magnitude | 15.24 (0.1) | 15.24 (0.1) | |||
| u magnitude | 16.56 (0.006) | 16.59 (0.01) | |||
| g magnitude | 16.22 (0.003) | 16.23 (0.01) | |||
| r magnitude | 16.12 (0.004) | 16.14 (0.007) | |||
| i magnitude | 16.09 (0.004) | 16.11 (0.01) | |||
| z magnitude | 16.10 (0.007) | 16.12 (0.01) | |||
| G magnitude | 20.18 (0.008) | 16.10 (0.001) | 16.09 (0.003) | ||
| BP magnitude | 20.54 (0.1) | 16.23 (0.005) | |||
| RP magnitude | 19.66 (0.1) | 15.78 (0.008) | |||
| Pan g magnitude | 16.25 (0.003) | ||||
| Pan r magnitude | 16.14 (0.001) | ||||
| Pan i magnitude | 16.12 (0.003) | ||||
| Pan z magnitude | 16.15 (0.006) | ||||
| Pan y magnitude | 16.15 (0.008) | ||||
| E(B-V) | 0.087 | ||||
* 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.