[ATM] Follow-up question

[John Lynch <john_p_lynch2004@yahoo.com>]

To the ATM group:

Thanks to those who responded to my question about
recommended distance from the secondary mirror to
the front end of the telescope tube.  Now for the
follow-up question:

Is it necessary to mount the mirror in its cell 
a short distance from the back end of the telescope
tube, or would there be any harm in adding a few
extra inches?  I suppose the concern here would be
air currents and time for the system to reach thermal
stability.  I'm thinking about having a total distance
from mirror face to back end of the telescope tube to
be about 8 inches.

Any advice would be greatly appreciated.

Thanks.

John Lynch 


	
		
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