All names: TIC 138771856, LAMOST J110920.40+264724.7, GALEX J110920.4+264724, Gaia DR3 3998182792399323904, Gaia DR2 3998182792399323904, UCAC2 41197502, SDSS J110920.39+264725.3, PG 1106+271, SDSS J110920.38+264725.3, PG1106+271, Ton 59, 2MASS J11092038+2647254, UCAC4 584-046228
| Parameter | Unit | Geier 2020 | Stilism | Guo et al. 2015 | Simbad |
|---|---|---|---|---|---|
| Right ascension | 11 09 20.35 | 11 09 20.38 (0.04) | |||
| Declination | 26 47 26.18 | 26 47 25.36 (0.04) | |||
| Spectral type | sdO | sdB | sdB | ||
| Effective temperature | [K] | 40528.0 (2000) | |||
| log(g) | [cgs] | 5.40 (0.2) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.11 (0.09) | 0.36 (0.05) | ||
| Distance | [pc] | 8960.57 (7162) | 2801.91 (423) | ||
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 7.064 (0.1) | 6.384 (0.04) | ||
| Proper motion (declination) | [mas/yr] | -9.981 (0.1) | -10.488 (0.04) | ||
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.28 (0.05) | ||||
| V magnitude | 15.52 (0.2) | ||||
| R magnitude | 15.98 (0.2) | ||||
| I magnitude | |||||
| J magnitude | 15.90 (0.07) | 15.90 (0.07) | |||
| H magnitude | 15.98 (0.1) | 15.98 (0.1) | |||
| K magnitude | 15.34 (0.1) | 15.34 (0.1) | |||
| u magnitude | 14.85 (0.004) | 14.85 (0.004) | |||
| g magnitude | 15.22 (0.004) | 15.22 (0.004) | |||
| r magnitude | 15.72 (0.004) | 15.72 (0.004) | |||
| i magnitude | 16.03 (0.005) | 16.03 (0.005) | |||
| z magnitude | 16.30 (0.009) | 16.30 (0.009) | |||
| G magnitude | 15.49 (0.002) | 15.47 (0.003) | |||
| BP magnitude | 15.30 (0.02) | ||||
| RP magnitude | 15.72 (0.005) | ||||
| Pan g magnitude | 15.33 (0.004) | ||||
| Pan r magnitude | 15.73 (0.003) | ||||
| Pan i magnitude | 16.06 (0.003) | ||||
| Pan z magnitude | 16.29 (0.003) | ||||
| Pan y magnitude | 16.42 (0.006) | ||||
| E(B-V) | 0.017 | ||||
* 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.