Log Book Entry No.43

Created: 09 Mar 2014 23:56:15

Last Revised: 09 Mar 2014 23:56:15

PaulHallam

Observation PH

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Log Book entry for observation on 07/03/2014

Telescope Set Up

• CCD camera set cooling to -15 degrees
• Coordinates of Capella determined using Stellarium
• Telescope centred on Capella
• Location synchronised with Stellarium
• Telescope centred on Delta Cephei

Observation of Delta Cephei

• From Stellarium Delta Cephei's next maximum is on 08/03/2014
• This means Delta Cephei is increasing in magnitude
• Frames were taken using different filters and exposure times
• The following exposure times were used:
• Focus Filter = 1.1s
• No Filter = 1s
• Blue Filter = 10s
• Green Filter = 5.1s
• Red Filter = 3.3s
• 5 repeats were taken of each
• 10 Dark and Bias frames were also taken, with a 10s exposure
• A trash frame was taken before the first Dark
• Three sets of observations were recorded, dc1, dc2 and dc3
• Observation saved to Desktop/Data/20140307_PH