Plate solving, once enabled, is automatic. But for good results, you need to first calibrate the system.
- Use a steady mount for the device
- Set your location
- Ensure the stars are in focus. See the focussing guide for tips.
You should be able to easily recognize constellations and asterisms in that part of the Sky.
Bump up the ISO and lower the exposure time as much as possible, while ensuring that bright stars are easily visible. Ideally, the brightest stars should be saturated (appearing fully bright on the screen).
To start calibration, pause the capture and then select Menu -> Calibrate.
- Specifies a space around the borders of the image. Anything outside this margin will be cropped out.
- Gradient removal strength
- Gradient removal helps in removing light pollution and extended objects such as clouds, and trees! However, it may also reduce the brightness of stars, if the stars are not well focussed.
Image before pre-processing.
With Margin 4% and Gradient Removal Strength of 0.8
First set the
Min areato a low value and
Max areato a high value.
Levelis a threshold above which stars are detected. Set it to a high value initially and then lower it until enough objects are detected.
The max number of objects is currently 40 (will be configurable later). It is recommended to have at-least 15 sources detected. The more the better.
If there are small unwanted objects, increase the
If there are large unwanted objects, decrease the
An overlay of objects will be shown on top of the detected objects.
Try to match the overlay with the detected objects. When the system is able to recognize the pattern,
it will say
Auto-Tune to let the system figure out the exact match.
Auto-tune is successful, click
After calibration, enable "Live Solving" to solve images as soon as they are captured.
Ensure that the capture settings are similar to the capture settings that were used for calibration. This restriction may ease in a future version, but as of version 0.9, please use similar settings.
The solution is only visible as an overlaid map for now. More details like RA, Dec will be shown in a later release.