Log Book Entry No.40

Days, Calendar Created: 26 Feb 2014 00:02:56 Days, Calendar Last Revised: 26 Feb 2014 00:02:56 Person PaulHallam Text Observation PH

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Telescope Set Up

  • Telescope was already set up due to an earlier observation.
  • Delta Cephei located using Stellarium
  • Telescope Centred on Delta Cephei

Observation of Delta Cephei

  • From Stellarium Delta Cephei was at maximum at 21:25:00 during this observation (25/02/2014)
  • Frames were taken using different filters and exposure times
  • Unlike previous observations images were near saturation at original exposure times, as a result the exposure times were lowered to 0.72 of the original.
  • This provided the following exposure times:
  • Focus Filter = 0.8s
  • No Filter = 0.7s
  • Blue Filter = 7.2s
  • Green Filter = 3.7s
  • Red Filter = 2.4s
  • 5 Repeats were taken of each
  • 10 Dark and Bias frames were also taken with 10s exposure, in addition to a trash frame before the first dark.
  • Only one set of observations, dc1, was recorded due to approaching cloud.
  • Observation saved to Desktop/Data/20140225_PH
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Subject Observation PH
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Topic revision: r1 - 26 Feb 2014 - PaulHallam

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