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Photographic Moon Book Alan Chu Version 3.5 1 (blank page) 2 Lunar Features by Map No. 1. The Geologic Moon 2. Mare Crisium, Proclus, Palus Somni, Cleomedes, Messala 3. Langrenus,…

JEETMULL JAICHANDLALL (MADRAS) PRIVATE LIMITED Manufacturers, Exporters & Importers of : All Kinds Of Wire Mesh, Crimped Mesh, Industrial Screens, Filters, Demister Pads,…

Slide 1 Optical Telescope Slide 2 Faint Light Astronomical objects are distant and faint. –Effectively at infinity Light collection is more important than magnification.…

The human eye has the collecting area of a 2-5 millimeter diameter aperture depending on its state of dilation. A telescopeâs function is to collect light from a much larger…

The human eye has the collecting area of a 2-5 millimeter diameter aperture depending on its state of dilation. A telescopeâs function is to collect light from a much larger…

Optical Telescope Faint Light Astronomical objects are distant and faint. Effectively at infinity Light collection is more important than magnification. Refraction Reflection…

Diffraction limited Turbulence limited Dq = l / D turbulent air layer ro = seeing cell size D ~ ro D > ro "dancing disk" Dq = l / D Dq = l /ro wind velocity…