All names: LAMOST J113942.01+464349.2, PG 1137+470, Gaia DR2 786220877662239488, GALEX J113941.9+464349, Gaia DR3 786220877662239488, Balloon 81011002, SDSS J113942.01+464349.4, PG1137+470, LAMOST J113941.96+464349.3, Gaia EDR3 786220877662239488, TIC 115860571, 2MASS J11394204+4643500, LAMOST J113942.01+464349.4
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 11 39 42.02 (0.02) | 11 39 42.01 | 11 39 42.02 (0.02) | ||
| Declination | 46 43 49.29 (0.04) | 46 43 50.31 | 46 43 49.52 (0.04) | ||
| Spectral type | sdB | sdB | |||
| Effective temperature | [K] | 30700.0 (460) | |||
| log(g) | [cgs] | 5.53 (0.09) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.51 (0.05) | 0.67 (0.08) | 0.51 (0.05) | |
| Distance | [pc] | 1948.56 (174) | 1498.13 (188) | 1948.56 (174) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -3.394 (0.03) | -3.263 (0.09) | -3.394 (0.03) | |
| Proper motion (declination) | [mas/yr] | -13.927 (0.04) | -14.186 (0.1) | -13.927 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.46 | ||||
| V magnitude | 15.60 | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 16.16 (0.09) | 16.16 (0.09) | |||
| H magnitude | 15.82 (0.1) | 15.82 (0.1) | |||
| K magnitude | 15.86 | ||||
| u magnitude | 15.10 (0.004) | 15.10 (0.004) | |||
| g magnitude | 15.28 (0.003) | 15.28 (0.003) | |||
| r magnitude | 15.77 (0.004) | 15.77 (0.004) | |||
| i magnitude | 16.13 (0.004) | 16.13 (0.004) | |||
| z magnitude | 16.43 (0.008) | 16.43 (0.008) | |||
| G magnitude | 15.55 (0.003) | 15.57 (0.0007) | 15.55 (0.003) | ||
| BP magnitude | 15.41 (0.003) | 15.33 (0.009) | |||
| RP magnitude | 15.82 (0.005) | 15.81 (0.008) | |||
| Pan g magnitude | 15.38 (0.007) | ||||
| Pan r magnitude | 15.80 (0.005) | ||||
| Pan i magnitude | 16.16 (0.002) | ||||
| Pan z magnitude | 16.41 (0.005) | ||||
| Pan y magnitude | 16.59 (0.007) | ||||
| 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.