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
  • 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.

IDEA! Please edit and put your text etc. here

Back to: LogBookAstronomy

LogBookForm
Subject H-Alpha observation
Status blank
Topic attachments
I AttachmentSorted ascending History Action Size Date Who Comment
Compressed Zip archivezip 20170315_andromeda.zip r1 manage 47129.7 K 16 Mar 2017 - 00:01 LaurieNevay Exposures of Andromeda
Compressed Zip archivezip 20170315_cone_nebula.zip r1 manage 83928.2 K 15 Mar 2017 - 23:56 LaurieNevay Exposures of Cone nebula
Compressed Zip archivezip 20170315_flats_01.zip r1 manage 85851.9 K 16 Mar 2017 - 00:02 LaurieNevay Flat exposures batch 1/9
Compressed Zip archivezip 20170315_flats_02.zip r1 manage 85811.9 K 16 Mar 2017 - 00:02 LaurieNevay Flat exposures batch 2/9
Compressed Zip archivezip 20170315_flats_03.zip r1 manage 85858.3 K 16 Mar 2017 - 00:03 LaurieNevay Flat exposures batch 3/9
Compressed Zip archivezip 20170315_flats_04.zip r1 manage 85838.7 K 16 Mar 2017 - 00:04 LaurieNevay Flat exposures batch 4/9
Compressed Zip archivezip 20170315_flats_05.zip r1 manage 85824.3 K 16 Mar 2017 - 00:04 LaurieNevay Flat exposures batch 5/9
Compressed Zip archivezip 20170315_flats_06.zip r1 manage 85827.4 K 16 Mar 2017 - 00:05 LaurieNevay Flat exposures batch 6/9
Compressed Zip archivezip 20170315_flats_07.zip r1 manage 85875.3 K 16 Mar 2017 - 00:06 LaurieNevay Flat exposures batch 7/9
Compressed Zip archivezip 20170315_flats_08.zip r1 manage 85827.4 K 16 Mar 2017 - 00:06 LaurieNevay Flat exposures batch 8/9
Compressed Zip archivezip 20170315_flats_09.zip r1 manage 71578.5 K 16 Mar 2017 - 00:07 LaurieNevay Flat exposures batch 9/9
Edit | Attach | Watch | Print version | History: r3 < r2 < r1 | Backlinks | Raw View | Raw edit | More topic actions

Physics WebpagesRHUL WebpagesCampus Connect • Royal Holloway, University of London, Egham, Surrey TW20 0EX; Tel/Fax +44 (0)1784 434455/437520

Topic revision: r3 - 16 Mar 2017 - LaurieNevay

 
This site is powered by the TWiki collaboration platform Powered by PerlCopyright © 2008-2021 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding RHUL Physics Department TWiki? Send feedback