All names: 2MASS J18054350+4633099, GALEXJ18057+4633, Gaia DR3 2116457667543853184, GALEX J180543.4+463309, WISEA J180543.47+463309.9, SDSS J180543.49+463309.9, UCAC4 683-063058, TIC 198616079, Gaia EDR3 2116457667543853184, Gaia DR2 2116457667543853184, WISE J180543.48+463309.9
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 18 05 43.48 (0.03) | 18 05 43.43 | 18 05 43.50 (0.03) | ||
| Declination | 46 33 09.97 (0.03) | 46 33 09.08 | 46 33 10.02 (0.03) | ||
| Spectral type | sdO+MS | sdO+? | |||
| 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] | 0.99 (0.03) | 0.99 (0.04) | 0.99 (0.03) | |
| Distance | [pc] | 1007.66 (31) | 1008.47 (38) | 1007.66 (31) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -14.841 (0.04) | -14.798 (0.07) | -14.841 (0.04) | |
| Proper motion (declination) | [mas/yr] | -3.059 (0.04) | -3.038 (0.09) | -3.059 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.25 (0.1) | ||||
| V magnitude | 14.50 (0.1) | ||||
| R magnitude | 14.75 (0.2) | ||||
| I magnitude | |||||
| J magnitude | 15.09 (0.05) | 15.09 (0.05) | |||
| H magnitude | 15.33 (0.1) | 15.33 (0.1) | |||
| K magnitude | 15.32 (0.2) | 15.32 (0.2) | |||
| u magnitude | 13.73 (0.004) | ||||
| g magnitude | 14.31 (0.2) | ||||
| r magnitude | 14.62 (0.004) | 14.71 (0.1) | |||
| i magnitude | 14.98 (0.004) | 15.07 (0.1) | |||
| z magnitude | 15.34 (0.006) | ||||
| G magnitude | 14.36 (0.003) | 14.38 (0.0008) | 14.36 (0.003) | ||
| BP magnitude | 14.20 (0.003) | 14.12 (0.009) | |||
| RP magnitude | 14.69 (0.004) | 14.68 (0.002) | |||
| Pan g magnitude | 14.19 (0.003) | ||||
| Pan r magnitude | 14.65 (0.001) | ||||
| Pan i magnitude | 15.02 (0.002) | ||||
| Pan z magnitude | 15.31 (0.003) | ||||
| Pan y magnitude | 15.51 (0.005) | ||||
| E(B-V) | 0.031 | ||||
* 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.