All names: LAMOST J112829.30+291504.7, PB 2774, Gaia DR2 4022181695259436416, LAMOST J112829.29+291504.2, Ton 67, US 2474, Gaia DR3 4022181695259436416, CBS 41, SDSS J112829.28+291504.3, PG 1125+295, Gaia EDR3 4022181695259436416, GALEX J112829.2+291504, LAMOST J112829.28+291504.3, PG1125+295, 2MASS J11282930+2915043, TIC 371567339, CHSS 148
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 11 28 29.28 (0.04) | 11 28 29.33 | 11 28 29.29 (0.04) | ||
| Declination | 29 15 04.28 (0.04) | 29 15 04.56 | 29 15 04.34 (0.04) | ||
| Spectral type | sdO | sdB | |||
| Effective temperature | [K] | 49710.0 (1530) | |||
| log(g) | [cgs] | 5.85 (0.2) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.67 (0.05) | 0.68 (0.09) | 0.67 (0.05) | |
| Distance | [pc] | 1484.78 (116) | 1479.51 (200) | 1484.78 (116) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -8.793 (0.04) | -8.642 (0.1) | -8.793 (0.04) | |
| Proper motion (declination) | [mas/yr] | -3.704 (0.04) | -3.58 (0.1) | -3.704 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.30 | ||||
| V magnitude | 15.19 | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 15.93 (0.07) | 15.93 (0.07) | |||
| H magnitude | 16.36 (0.2) | 16.36 (0.2) | |||
| K magnitude | 15.74 (0.2) | 15.74 (0.2) | |||
| u magnitude | 14.35 (0.003) | 14.35 (0.003) | |||
| g magnitude | 14.78 (0.003) | 14.78 (0.003) | |||
| r magnitude | 15.32 (0.004) | 15.32 (0.004) | |||
| i magnitude | 15.71 (0.004) | 15.70 (0.004) | |||
| z magnitude | 16.07 (0.007) | 16.07 (0.007) | |||
| G magnitude | 15.04 (0.003) | 15.06 (0.001) | 15.04 (0.003) | ||
| BP magnitude | 14.87 (0.004) | 14.81 (0.01) | |||
| RP magnitude | 15.40 (0.004) | 15.40 (0.003) | |||
| Pan g magnitude | 14.85 (0.006) | ||||
| Pan r magnitude | 15.34 (0.002) | ||||
| Pan i magnitude | 15.72 (0.003) | ||||
| Pan z magnitude | 16.02 (0.003) | ||||
| Pan y magnitude | 16.23 (0.005) | ||||
| E(B-V) | 0.018 | ||||
* 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.