Difference: LogBookAstronomyEntry0142 (1 vs. 2)

Revision 215 Mar 2017 - LewisWilkins

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META TOPICPARENT name="LogBookAstronomy"

Log Book Entry No.142

Days, Calendar Created: 15 Mar 2017 19:46:56 Days, Calendar Last Revised: 16 Mar 2017 00:07:38 Person LaurieNevay Text H-Alpha observation
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  • Andromeda 30s exposure
  • Andromeda 180s exposure - peak ADC 35000 - bkg 13000
  • Andromeda 400s exposure - no auto dark - h-alpha(woo!) - peak ADC 3200 - bkg 1900 - ratio is 13.0
Changed:
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  • Cone nebula, tracking with main scope 0.5s
  • Cone nebula 400s - h-alpha - 4 exposures
  • Adjust autoguider to agressiveness 4 for last of 4 only.
  • Cooler to minus 20 - 72% power usage
  • 21:15
  • Cooler could only reach -23C - set back to -20 so it's not saturated. Let settle.
 

Revision 115 Mar 2017 - LewisWilkins

Line: 1 to 1
Added:
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META TOPICPARENT name="LogBookAstronomy"

Log Book Entry No.142

Days, Calendar Created: 15 Mar 2017 19:46:56 Days, Calendar Last Revised: 16 Mar 2017 00:07:38 Person LaurieNevay Text H-Alpha observation

H-Alpha observation

  • Coolers on around 17:45
  • Visibility very good
  • Camera 1 -10C
  • Camera 2 -15C
  • Aligned to Alderbaran

Candidates

  • Andromeda
  • Orion
  • Cone
  • Rosette

  • Pinwheel - highest

Data

  • Andromeda 30s exposure
  • Andromeda 180s exposure - peak ADC 35000 - bkg 13000
  • Andromeda 400s exposure - no auto dark - h-alpha(woo!) - peak ADC 3200 - bkg 1900 - ratio is 13.0

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META FORM name="%25SYSTEMWEB%25.LogBookForm"
FORM FIELD Subject Subject H-Alpha observation
FORM FIELD Status Status blank
FORM FIELD Author Author TWikiGuest
 
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