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Found 2 results

  1. The summer has proven challenging weather-wise here in the UK. The original plan was for 5 hours each of SII, Ha and OIII on this object. I got pretty close to completion last night before the clouds rolled in. I have decided to call it therefore, even though I am still 4 subs short of target. This is my Esprit 120, with QSI 690 atop a Mesu 200 in my home observatory. Data captured between 27 May and 19 August 2017 and consists of: Ha: 18x1200" OIII: 13x1200" SII: 13x1200" For a total of 14.7 hours Data was then brutalised using PI and PS.
  2. Following on from the 'free' widefield picture - https://stargazerslounge.com/topic/286774-free-rider-wo-star-71-and-horsehead/#comment-3142262 - here is the image through my Esprit 120. This is 8 hours in total. Last night we had a 'half-moon', more or less, and it was not too far away from the Horse. The Ha subs in both the Esprit and the WO looked about the same as they had done when there was no moon about. SGP does an Autostretch of downloaded subs. The 'black point' of the moonless and half-moon shots were only about 100 ADU apart, which I thought was pretty good. Rather foolishly I wasted time last night trying to get some LRGB. A 5 min Lum sub, autostretched by SGP, had an ADU in the high 8,000s (and looked pretty horrible)! Looks like I will have to wait for the disappearance of Moony McMoonface before taking on the LRGB acquisition. So this is: Skywatcher Esprit 120 Astrodon 3nm Ha - 24 x 20 minute subs = 8 hours QSI 690 I've tried not to go too 'extreme' with the processing:
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