Star point problems usually arise from tracking orientation, polar axis, mechanical stability, camera vibration, or exposure parameters. It is recommended to only change one condition at a time.
| Performance | Priority Check |
|---|---|
| Each picture is obviously elongated in the same direction | Hemisphere direction, whether to start tracking, polar axis deviation |
| Some photos are clear, some are shaken | Wind, ground vibration, tripod, shutter vibration, cable |
| Sharper center of frame, radial edges | Lens aberration, aperture and focus, not necessarily tracking issues |
| The longer the exposure, the more obvious the wires are | Polar accuracy, periodic error, focal length and pixel scale |
| The equipment has jamming or abnormal sounds | Stop immediately and cut off the power, and check the mechanical interference and load |