Log Book Entry No.132

Days, Calendar Created: 20 Jan 2017 10:46:44 Days, Calendar Last Revised: 20 Jan 2017 14:24:40 Person TomHyatt Text MSci Skills Solar Limb PH3010

IDEA!

People Present:

  • Tom Hyatt
  • Luna Borella
  • Rebecca Chafers
  • Virgina d'Emilio
  • Sam Youles
Start Time: 10:48

Conditions: Clear - No cloud

Setup:

  • Covers Removed
  • Solar Filters Added to main scope and finder scope
  • Camera Fitted to rear of scope
  • Dome Opened
  • open IC Capture
  • Aligned the sun using shadow and finder scope
  • Focused using the edge of the sun at the equator
  • Used histogram to check for saturation at the centre of the Sun (below 130(ish)pixel value at 1/350s exposure, gain 263)
  • Sequence timer with one second intervals for 450 frames
Data Taking:

  • From edge of Sun moved away for 15secs at speed 3
  • set tracking to terrestrial
  • start taking frames
First set of data: Tree in way!

(index number not changed so started at 451)

  • set of data taken with No Filter
Gain changed to 180 (lowest possible)

Second set of data:

  • Green Filter - Exposure 1/50 s
  • Blue Filter - Exposure 1/15 s
  • Red Filter - Exposure 1/60 s
  • No Filter - Exposure 1/350 s
Retake some data:

  • Blue Filter - Exposure 1/12 s
  • Green Filter - Exposure 1/45 s
  • Red Filter - Exposure 1/55 s
  • No Filter - Exposure 1/350 s
Centre data: (No Filter)
  • Exposure 1/350s
  • Exposure 1/150s
  • Exposure 1/250s
  • Exposure 1/450s
  • Exposure 1/550s
Finish Time 13:59

Further Sunspot Images taken using exposure:1/200s

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Subject MSci Skills Solar Limb PH3010
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Topic attachments
I Attachment History Action Size Date Who Comment
Compressed Zip archivezip BlueFilter.zip r1 manage 32941.6 K 20 Jan 2017 - 12:34 TomHyatt  
Compressed Zip archivezip BlueFilter2.zip r1 manage 36073.5 K 20 Jan 2017 - 13:10 TomHyatt  
Compressed Zip archivezip CentreData.zip r1 manage 71045.4 K 20 Jan 2017 - 13:59 TomHyatt  
Compressed Zip archivezip GreenFilter.zip r1 manage 31696.2 K 20 Jan 2017 - 12:20 TomHyatt  
Compressed Zip archivezip GreenFilter2.zip r1 manage 33339.3 K 20 Jan 2017 - 13:21 TomHyatt  
Compressed Zip archivezip NoFilter.zip r1 manage 34745.4 K 20 Jan 2017 - 12:57 TomHyatt  
Compressed Zip archivezip NoFilter2.zip r1 manage 35087.5 K 20 Jan 2017 - 13:43 TomHyatt  
Compressed Zip archivezip RedFilter.zip r1 manage 35799.7 K 20 Jan 2017 - 12:46 TomHyatt  
Compressed Zip archivezip RedFilter2.zip r1 manage 38571.6 K 20 Jan 2017 - 13:32 TomHyatt  
Compressed Zip archivezip Sunspot.zip r1 manage 62730.7 K 20 Jan 2017 - 14:24 TomHyatt  
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Topic revision: r2 - 20 Jan 2017 - TomHyatt

 
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