All names: Feige 87, FB 139, uvby98 620001087, Gaia DR3 1662849232061173248, CSI+61-13381, HIP 66689, GSC 04164-00256, Gaia DR2 1662849232061173248, PG 1338+611, TYC 4164-256-1, GALEX J134014.6+605246, PG1338+611, GEN# +6.20001087, HIC 66689, TIC 298093039, 2MASS J13401470+6052475, [TFW97] J134014.66+605248.35
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 13 40 14.58 | 13 40 14.70 (0.07) | ||
| Declination | 60 52 50.36 | 60 52 47.57 (0.07) | ||
| Spectral type | sdB+G4V | sdB+G4V | ||
| 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] | 2.41 (0.04) | 2.24 (0.08) | |
| Distance | [pc] | 415.30 (6) | 446.49 (17) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 16.5 (0.07) | 14.442 (0.1) | |
| Proper motion (declination) | [mas/yr] | -63.405 (0.05) | -63.884 (0.09) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 11.56 | |||
| V magnitude | 11.71 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 11.48 (0.02) | 11.48 (0.02) | ||
| H magnitude | 11.36 (0.03) | 11.36 (0.03) | ||
| K magnitude | 11.31 (0.02) | 11.31 (0.02) | ||
| u magnitude | 11.95 (0.001) | |||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | 12.10 (0.001) | |||
| z magnitude | 13.11 (0.006) | |||
| G magnitude | 11.63 (0.0005) | 11.61 (0.003) | ||
| BP magnitude | 11.55 (0.006) | |||
| RP magnitude | 11.63 (0.002) | |||
| Pan g magnitude | 12.60 (0.001) | |||
| Pan r magnitude | 12.90 (0.08) | |||
| Pan i magnitude | 13.33 (0.3) | |||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| 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.