Log Book Entry No.134

Created: 24 Jan 2017 19:29:48

Last Revised: 24 Jan 2017 19:29:48

CatrionaMcDonald

PH2900 Observation 1 CM

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AA arrived at 17:30

• take cover off telescope
• power to telescope and switch on
• open dome doors
• take lens caps off telescope
• removed old setup
• mounting SBIG ST8XME
• plug in power usb and turn on
• alignment star is Capella
• 02:03:35.3 LST
• 17:50 GMT
• RA Capella 5h17m
• h= LST - a
• h= 2h 3m - 5h 17m =-3h 14m =20h 46m
• dome doors were rotated to star
• telescope was set to hour angle declination from calculation and stellarium data
• dec = 46 deg
• sight telescope was then used to centre Capella in view of eye piece
• speed was set to 0.25% /sec to have finer control
• maxIm DL camera was started, coolers -15
• star was centered on the camera
• binning was set to 4 for the focussing
• paddle microfocusser focus was used north and south to improve focus
• focussed till the blob was as small as possible
• binning was set to 1 and the view of capella was oversaturated
• telescope was moved to some fainter stars and then refocussed smaller binning