Log Book Entry No.143

Days, Calendar Created: 20 Mar 2017 19:32:16 Days, Calendar Last Revised: 21 Mar 2017 10:44:16 Person LewisWilkins Text H-Alpha 2

H-Alpha Observation 2

  • JC, LN, LW, ZCW

  • Bright star in field of view on main scope - Alnitak

  • Pixel coods 573,384
  • Agressiveness 8,4
  • touched up focus
  • 1st try at 600s with h alpha at 7:32
  • 10minute exposure quite clear but alnitak just about saturated
  • 20 minutes exposure clearer nebulosity but not excessive distortion on alnitak
  • settled on 10 minute exposures as we have some already
  • auto save for 15 (can cancel)
  • did 9 exposures at 10 min, so 11 in total with earlier ones

  • 50 flats on smaller scope with electro-luminescent panel - 6s each
  • Dome shut and cameras warmed up at 11:25

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Subject H-Alpha 2
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Topic attachments
I Attachment History Action Size Date Who Comment
Compressed Zip archivezip Horsehead2.zip r1 manage 55315.2 K 21 Mar 2017 - 10:34 LewisWilkins Horsehead2
Compressed Zip archivezip Horsehead_2.zip r1 manage 66598.3 K 21 Mar 2017 - 10:33 LewisWilkins Horsehead
Compressed Zip archivezip Rosette.zip r1 manage 33411.9 K 21 Mar 2017 - 10:32 LewisWilkins Rosette
Compressed Zip archivezip flat_6s-001.zip r1 manage 85726.7 K 21 Mar 2017 - 10:38 LewisWilkins Flats1
Compressed Zip archivezip flat_6s-011.zip r1 manage 85675.7 K 21 Mar 2017 - 10:39 LewisWilkins Flats2
Compressed Zip archivezip flat_6s-016.zip r1 manage 85687.5 K 21 Mar 2017 - 10:40 LewisWilkins Flats3
Compressed Zip archivezip flat_6s-020.zip r1 manage 85693.5 K 21 Mar 2017 - 10:40 LewisWilkins Flats4
Compressed Zip archivezip flat_6s-025.zip r1 manage 85687.3 K 21 Mar 2017 - 10:41 LewisWilkins Flats5
Compressed Zip archivezip flat_6s-033.zip r1 manage 85683.6 K 21 Mar 2017 - 10:42 LewisWilkins Flats6
Compressed Zip archivezip flat_6s-035.zip r1 manage 85676.5 K 21 Mar 2017 - 10:42 LewisWilkins Flats7
Compressed Zip archivezip flat_6s-045.zip r1 manage 85672.7 K 21 Mar 2017 - 10:43 LewisWilkins Flats8
Compressed Zip archivezip flat_6s-049.zip r1 manage 71394.0 K 21 Mar 2017 - 10:44 LewisWilkins Flats9
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Topic revision: r5 - 21 Mar 2017 - LewisWilkins

 
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