All names: 2MASS J16490895+2510062, TIC 258196090, PLX 3826.11, GSC 02062-01013, UBV 14242, uvby98 610070264, Ton 264, PG 1647+252, FB 169, NPM1+25.0875, EGGR 276, GEN# +6.10070264, CSI+25-16471, UBV M 43133, PG 1647+253, GALEX J164908.9+251007, Gaia DR2 1300318189433312000, PG1647+252, Gaia DR3 1300318189433312000
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 16 49 08.97 | 16 49 08.96 (0.01) | ||
| Declination | 25 10 05.70 | 25 10 06.23 (0.02) | ||
| Spectral type | sdB+MS | sdOB | ||
| 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] | 1.46 (0.05) | 1.51 (0.03) | |
| Distance | [pc] | 685.64 (21) | 664.36 (11) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -1.963 (0.06) | -1.92 (0.02) | |
| Proper motion (declination) | [mas/yr] | 6.978 (0.09) | 6.816 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.04 | |||
| V magnitude | 14.09 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 13.45 (0.02) | 13.45 (0.02) | ||
| H magnitude | 13.03 (0.02) | 13.03 (0.02) | ||
| K magnitude | 12.93 (0.03) | 12.93 (0.03) | ||
| u magnitude | 13.84 (0.003) | |||
| g magnitude | 13.93 (0.003) | |||
| r magnitude | 14.15 (0.003) | |||
| i magnitude | 14.73 (0.004) | |||
| z magnitude | 14.27 (0.004) | |||
| G magnitude | 14.01 (0.0007) | 14.00 (0.003) | ||
| BP magnitude | 13.95 (0.005) | |||
| RP magnitude | 13.92 (0.002) | |||
| Pan g magnitude | 13.99 (0.006) | |||
| Pan r magnitude | 14.19 (0.004) | |||
| Pan i magnitude | 14.25 (0.002) | |||
| Pan z magnitude | 14.31 (0.002) | |||
| Pan y magnitude | 14.32 (0.005) | |||
| E(B-V) | 0.032 | |||
* 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.