All names: 2MASS J18275493+3622085, O11J182755+362208, Gaia DR2 2095803474760504576, GALEX J182754.9+362207, Gaia DR3 2095803474760504576, TIC 289020573, Gaia EDR3 2095803474760504576
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 18 27 54.91 (0.03) | 18 27 55.00 | 18 27 54.92 (0.03) | ||
| Declination | 36 22 08.00 (0.03) | 36 22 08.00 | 36 22 08.08 (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] | 0.33 (0.04) | 0.34 (0.04) | 0.33 (0.04) | |
| Distance | [pc] | 3003.91 (337) | 2978.85 (389) | 3003.91 (337) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -4.967 (0.04) | -5.051 (0.08) | -4.967 (0.04) | |
| Proper motion (declination) | [mas/yr] | -4.48 (0.05) | -4.605 (0.09) | -4.48 (0.05) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 16.60 (0.1) | 16.60 (0.1) | |||
| H magnitude | 15.86 | ||||
| K magnitude | 16.13 | ||||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 16.16 (0.003) | 16.19 (0.002) | 16.16 (0.003) | ||
| BP magnitude | 16.00 (0.004) | 15.94 (0.007) | |||
| RP magnitude | 16.46 (0.007) | 16.46 (0.005) | |||
| Pan g magnitude | 15.98 (0.004) | ||||
| Pan r magnitude | 16.43 (0.003) | ||||
| Pan i magnitude | 16.80 (0.002) | ||||
| Pan z magnitude | 17.07 (0.004) | ||||
| Pan y magnitude | 17.28 (0.006) | ||||
| E(B-V) | 0.046 | ||||
* 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.