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Mars 196012280117

Mars 196012280117

Mars on 1960 December 27/28 at 20:17 local time (01:17 UT) as sketched by Kenneth Chalk. C.M. 311°. 6" reflector at 125x. Seeing 6. Transparency 4-5. After completing the drawing, the telescope was tried at 200x using an amber haze filter from a camera. No further detail was recorded except possibly a slightly dusky area at the place "x". T = 3°.