Shack Interferometer & figuring 12"

• In Box (1)
• 2017 Solar Eclipse (2)
• Galaxies and M33 in HaRGB (17)
• 2010 (0)
• IC405 Flaming Star Nebula from Antennas 2-5-2011 (0)
• May 2010 (0)
• M13, (with NGC 6207, and IC 4617 at 11 o'c and 1/3 from top) (3)
• Equipment (5)
• Shack Interferometer & figuring 12" (8)
• jackscrew_focuser (4)
• Center Swivel Diagonal Mount (2)
• 125_inch_prime_focus_version (3)
• mirror_and_lensmaking (9)
• 8_inch_hyperbolic_astrograph (3)
• building_16_inch_carbon_tube (17)
• 16_inch_carbon_tube (0)
• fast_moving_objects (3)
• nebulae (29)
• april_15_2014_lunar_eclipse (1)
• observing_hazards (1)