All names: WISE J225608.51+085352.5, Gaia DR3 2714633259098801536, Gaia DR2 2714633259098801536, LAMOST J225608.52+085351.9, SDSSJ225608.53+085351.9, SDSS J225608.53+085351.9, Gaia EDR3 2714633259098801536, 2MASS J22560851+0853516
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 22 56 08.53 (0.06) | 22 56 08.52 | 22 56 08.53 (0.06) | ||
| Declination | 08 53 51.81 (0.05) | 08 53 51.96 | 08 53 52.02 (0.05) | ||
| Spectral type | sdB | sdB/sdO | |||
| Effective temperature | [K] | 32047.0 (114) | |||
| log(g) | [cgs] | 6.07 (0.04) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.62 (0.07) | 0.61 (0.1) | 0.62 (0.07) | |
| Distance | [pc] | 1611.86 (189) | 1640.15 (280) | 1611.86 (189) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 1.834 (0.07) | 1.805 (0.1) | 1.834 (0.07) | |
| Proper motion (declination) | [mas/yr] | -12.898 (0.06) | -13.023 (0.1) | -12.898 (0.06) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 16.57 (0.1) | 16.57 (0.1) | |||
| H magnitude | 16.39 (0.2) | 16.39 (0.2) | |||
| K magnitude | 16.43 | ||||
| u magnitude | 15.74 (0.005) | 15.80 (0.005) | |||
| g magnitude | 15.87 (0.003) | 15.88 (0.003) | |||
| r magnitude | 16.34 (0.004) | 16.34 (0.005) | |||
| i magnitude | 16.66 (0.005) | 16.65 (0.005) | |||
| z magnitude | 16.94 (0.01) | 16.96 (0.01) | |||
| G magnitude | 16.13 (0.003) | 16.15 (0.002) | 16.13 (0.003) | ||
| BP magnitude | 16.02 (0.004) | 15.99 (0.007) | |||
| RP magnitude | 16.34 (0.006) | 16.35 (0.004) | |||
| Pan g magnitude | 15.97 (0.008) | ||||
| Pan r magnitude | 16.35 (0.005) | ||||
| Pan i magnitude | 16.67 (0.009) | ||||
| Pan z magnitude | 16.91 (0.006) | ||||
| Pan y magnitude | 17.11 (0.002) | ||||
| E(B-V) | 0.061 | ||||
* 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.