Log Book Entry No.137

Days, Calendar Created: 13 Feb 2017 16:44:21 Days, Calendar Last Revised: 13 Feb 2017 20:27:17 Person CatrionaMcDonald Text PH2900 Observation 2 CM LNK AS

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  • CM LNK AS enter dome at 16:20
  • Telescope cover was removed
  • SBIG ST8 and ST8300 connected to the power
  • Telescope powered on
  • Images from ST8 and ST8300 taken with lens caps on to observe noise at warm temp
  • dome doors opened and slewed to the South
  • Leave dome at 16:40
  • Reentered dome at 17:40
  • 40 sec exposure taken in ST8 - noise and dust rings observed
  • 10 sec exposure taken in ST8300 - noise and a few dust specks observed
  • Went on to roof to find a bright target star - none observed
  • telescope slewed to Venus for alignment
  • object- solar system- venus Stellarium showed offset by about 2m
  • telescope was moved using Stellarium to HIP1602 with the same offset
  • Due to fast moving cloud cover dome was left for a time
  • Dome reentered at 19:30
  • On roof bright star was found and estimated at Alt/Az 160/40
  • From Stellarium was estimated to be Betelgeuse Alt/Az 161/44 RA/Dec 5h55m/7deg
  • telescope moved to Atlas-Pleoine
  • images taken with guide and non guide telescopes
  • non guide shows just those stars, using vertical line can see plate scale using pixel distance from graph view
  • guide shows other dimmer stars surrounding, image with stars details are below
  • http://nova.astrometry.net/user_images/1496527#annotated
  • images of Orion nebula were taken (for fun)
  • coolers off cameras disconnected
  • dome moved to North and shut
  • lens caps back on
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Topic revision: r3 - 13 Feb 2017 - CatrionaMcDonald

 
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