All names: LB 2009, PG 1122+518, SDSS J112454.34+512833.1, GALEX J112454.3+512832, HIDDEN NAME PG 1122+517, Gaia DR2 838579415218967552, SBSS 1122+517, PG1122+517, Gaia DR3 838579415218967552, UCAC4 708-051570
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 11 24 54.37 | 11 24 54.35 (0.03) | ||
| Declination | 51 28 33.39 | 51 28 33.11 (0.04) | ||
| Spectral type | sdOB | sdBO | ||
| 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] | 0.18 (0.08) | 0.20 (0.05) | |
| Distance | [pc] | 5546.31 (2516) | 5050.51 (1316) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -1.187 (0.09) | -1.254 (0.04) | |
| Proper motion (declination) | [mas/yr] | -4.97 (0.1) | -5.335 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 16.12 (0.1) | |||
| V magnitude | 16.52 (0.06) | |||
| R magnitude | 16.20 (0.4) | |||
| I magnitude | ||||
| J magnitude | ||||
| H magnitude | ||||
| K magnitude | ||||
| u magnitude | 15.75 (0.005) | 15.74 (0.01) | ||
| g magnitude | 16.12 (0.004) | 16.08 (0.05) | ||
| r magnitude | 16.64 (0.005) | 16.62 (0.1) | ||
| i magnitude | 17.02 (0.006) | 16.97 (0.03) | ||
| z magnitude | 17.36 (0.01) | 17.36 (0.02) | ||
| G magnitude | 16.41 (0.001) | 16.38 (0.003) | ||
| BP magnitude | 16.11 (0.009) | |||
| RP magnitude | 16.70 (0.009) | |||
| Pan g magnitude | 16.20 (0.002) | |||
| Pan r magnitude | 16.66 (0.003) | |||
| Pan i magnitude | 17.03 (0.003) | |||
| Pan z magnitude | 17.33 (0.004) | |||
| Pan y magnitude | 17.55 (0.008) | |||
| E(B-V) | 0.021 | |||
* 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.