/sci/ - Science & Math

>>11105833
>care to post your setup?
Here it is. The biggest challenge with astrophotography is to keep the object completely still as you're taking the exposure. I usually do 5min exposures and if the object isn't still it will produce blurry images.
My telescope is mounted on a motorized equatorial mount and if the mounts rotational axis is exactly parallel with the earths then in theory you would only need to rotate one axis to follow objects in the sky but it's almost impossible to reach that level of precision which is why I have a smaller telescope attached to the larger one. The larger one is the one that's taking the photographs while the smaller ones job is to keep track on a single star and if it notices that the star deviates from the center it will send correction commands to the mount and bring it back to the center which also results in the object being photographed to be completely still.