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Observation by Alan Snook: 41P Comet Tuttle-Giacobini-Kresak

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Alan Snook


Alan Snook


2017 May 25 - 21:35


2017 May 27 - 19:52


41P Tuttle-Giacobini-Kresak

  • 0.5m f4.1 Dobsonian
  • 17mm & 8mm Ethos eyepieces x120 & x260


Target name

41P Comet Tuttle-Giacobini-Kresak


41P Comet Tuttle-Giacobini-Kresak

About this image

This comet passed through perihelion on April 11. I missed it when it was better placed.  It is now near the Hercules/Sagitta border at RA 18h 31m Dec +19 deg 06'.  To start I observed the field with the 17mm eyepiece. I was expecting something stellar and watched a candidate for 30 minutes but could not detect any motion. Switching to the 8mm eyepiece the comet was immediately revealed as a faint round mist without central brightening or nucleus. I estimate the diameter at 0’.7 and the magnitude at around 14 based on my experience viewing faint galaxies. The motion is north to south. (a) is the position at 22:35, (b) at 23.00.

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