META TOPICPARENT |
name="LogBookAstronomy" |
Log Book Entry No.150
Created: 01 Nov 2017 13:28:40 |
Last Revised: 23 Jan 2018 19:30:36 |
AlanisCozens1 |
Solar Limb Darkening test data AC LL |
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Time 10:30am-1pm in dome, A Cozens, L Lenz, D Bedingham, S Boogert
Weather cloudy, intermittently clear use DSLR to take white images to look at the natural vignetting effects of the camera, took many exposure times so to get an unsaturated image. Need to process these to get a pixel vs intensity curve to show that the fractional ratio of intensity does not depend on exposure. Also look at different colour channels and create a plot to show all 3 Then set up the telescope so as to record data, fit with sun filters and imaging source camera. Using ICcapture software. Use shadow of the telescope to align, and adjust further with finder scope. set telescope to the west of the sun to see it passing through the window, takes around 1min to fully pass no data recorded Use DSLR to take images of the sun, lowering the exposure times to find an unsaturated image. Use circle finder code to analyse the intensity array across a diameter of the sun.
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Solar Limb Darkening test data AC LL |
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