This is a live notebook and work in progress
To provide an equatorial tracking mount that rotates at 1 revolution per sidereal day for long exposure astrophotography of stars.
As thus I’m thinking of some clear objectives for this project.
- Equatorial tracking
- easy, with no field rotation.
- Must weigh under 1.5kg
- If you’re hiking up a mountain to take star shots, i dont want this to be a big unwieldy apparatus.
- Must cost under $100
- Camera gear is expensive, this doesnt need to be.
- Able to track a starfield well enough to take 5 minute exposures without visible star
- you’ll be stacking shots for deep sky stuff, but at a minimum i’d like to do 5 minute exposures.
- Should have at least 40 mins of tracking time before rewinding.
- or should have a fast rewind function with simple controls.
- Standard mounts.
- 1/4" thread for attaching to all tripods and cameras.
- Ballhead attachment for camera.
- probably the most expensive thing.
Barn Doors are a possibility.
As are direct worm drive with Audino controlled Stepper motors like the Vixen Polarie and iOptron SkyTracker