All names: [CRS2013] 6, WISE J222554.41+172310.7, Gaia DR2 2737521895733424768, PG 2223+171, Gaia DR3 2737521895733424768, WISEA J222554.41+172310.6, GALEX J222554.4+172310, UCAC2 37999137, PG2223+171, UCAC4 537-144870, 2MASS J22255440+1723106, SDSS J222554.41+172310.6, TIC 51636887
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 22 25 54.34 | 22 25 54.40 (0.05) | ||
| Declination | 17 23 10.82 | 17 23 10.67 (0.04) | ||
| Spectral type | sdOB | sdBO | ||
| Effective temperature | [K] | 37890.0 (1300) | ||
| log(g) | [cgs] | 5.67 (0.1) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.47 (0.06) | 0.92 (0.05) | |
| Distance | [pc] | 2120.89 (291) | 1087.19 (59) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 16.16 (0.1) | 15.329 (0.05) | |
| Proper motion (declination) | [mas/yr] | -3.694 (0.09) | -4.031 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.65 (0.02) | |||
| V magnitude | 14.73 (0.03) | |||
| R magnitude | 15.00 (0.1) | |||
| I magnitude | ||||
| J magnitude | 14.35 (0.03) | 14.35 (0.03) | ||
| H magnitude | 14.03 (0.03) | 14.03 (0.03) | ||
| K magnitude | 14.06 (0.06) | 14.06 (0.06) | ||
| u magnitude | 14.32 (0.004) | |||
| g magnitude | 14.53 (0.004) | 14.68 (0.1) | ||
| r magnitude | 14.81 (0.004) | 14.84 (0.07) | ||
| i magnitude | 14.96 (0.004) | 15.09 (0.1) | ||
| z magnitude | 15.26 (0.006) | |||
| G magnitude | 14.66 (0.001) | 14.64 (0.003) | ||
| BP magnitude | 14.56 (0.008) | |||
| RP magnitude | 14.66 (0.005) | |||
| Pan g magnitude | 14.61 (0.002) | |||
| Pan r magnitude | 14.85 (0.003) | |||
| Pan i magnitude | 15.00 (0.003) | |||
| Pan z magnitude | 15.09 (0.002) | |||
| Pan y magnitude | 15.13 (0.004) | |||
| E(B-V) | 0.049 | |||
* 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.