S8239 guide star OAG guide star

On the basis of the original basic design, S8239 has optimized the medium to long focal length guidance star OAG
When guiding stars with medium to long focal length, the focal length of the guiding mirror is too short, resulting in low accuracy of the guiding star. The OAG on the market, due to the small prism body of the guiding star, makes it difficult to find the guided star or find a suitable one.
The new OAG guiding star greatly increases the prism guiding star area of OAG
Star guide port supports 183174 large format star guide CCD
Optimized the situation where there are few or no guided stars when using OAG guidance stars on the main mirror above 1500MM
Its area is 6-7 times the guiding star area of QHY5L-II-M camera, making it easy to find suitable star points.
 
Parameters:
Input ports: M48, M54, with 360 degree rotator
Output ports: M54, M48, M42, with 360 degree rotator
Navigation port: 1.25-inch spiral focusing
Spiral focusing diameter maximum link: 55mm
Thickness: 26mm
 

Recommended usage plan: Use a 4/3 format camera with a large format star guiding camera such as 174 for OAG star guiding