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CCT-20 and CCT-24
STANDARD OPTICS:
• Our typical 0.5M & 0.6M Classical Cassegrains have
an F/3 primary mirror with an effective ratio between F/8
and F/18. The 125mm field is fully shielded and unvignetted.
• Back focus is 28cm from mounting surface
• 2 variable, low voltage power outlets for reticles
provided on optical tube assembly
• 2 AC power outlets on optical tube assembly
• Finderscope: 5 in. F/9 with 2 in. dia, 32mm focal length
eyepiece and projection reticle
TELESCOPE MOUNT:
• 30 in. diameter friction drive in RA and 28 in. diameter
friction drive in DEC
• Steel mirror cell with multiple 12-bolt patterns per
KPNO standard
• Tracking accuracy: +/- 0.5 arc seconds in 5 minutes,
+/- 5.0 arc seconds in 1 hour
• Pointing accuracy (with refraction and alignment correction)
better than 30 arc seconds RMS
• Variable set, guide and tracking rates: 0 to 4 deg./sec.
• Supports 65kg instrument load with CG 36cm behind mounting
surface
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