• Expose -> 0.2s -> start

• Take off filters (focus in filter drop down menu)
• Take images with various exposures (0.2s, 0.8s, 1s, 1.5s, 5s) * not sure on this, edit after image files attached.
• Use graph tool to view whether there was saturation for each image. (horizontal line, ~60,000 saturation)

Log Book Entry No.35

Created: 20 Feb 2014 21:02:54

Last Revised: 26 Feb 2014 14:01:37

CharlotteNedd

MSci Skills intro to telescope

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• Dome doors
• Telescope cover
• Telescope power
• Camera power
• Lens caps

• Camera control -> setup -> connect
• Cooler -> set point -> 15 deg

• RA 7h 35m 30s
• Dec +31 deg 51' 21'
• GST =4h 39m 04.2s
• h (from Stellarium) = 21h 03m 30s
• Expose, 0.2s, start

• 4x4 binning
• Take subframe

• Focus- up/down moves camera in/out
• Object -> star -> named -> Castor (press enter)
• Press and hold enter 2s

• Blue filter, lowest exposure

Move to NGC 1647

subframe around faint star and tried focus

switched off subframe and recorded entire cluster

took images with 1*1 binning and various exposure times, focus filter

took three dark frames with 30 seconds exposure times

took a light frame

took images with green, blue, red filter, exposure time 30 sec

adjusted exposure time (ratios: blue 1, green 1.3, red 1.6) and took images (1=150sec) red and green, cloudy for green;

weather changed

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