M101, a year apart.
Posted: Wed Apr 22, 2020 10:41 am
My first deep sky through the C11.
I am used to imaging at 1200mm or at most 1600mm.
With my 0.75x reducer on the C11, I am now at 2100mm, and that is certainly challenging
On the polar alignment and tracking front.
My stars are a little trailed.
Anyway, here is M101 attempt.
C11 Edge with Revelation 0.75x reducer, QHY10, AZ EQ6 GT
Guided with 60/285 finder, PHD2 and Altair GPCAM2 AR0130 with Baader fringe filter.
39 x 600 secs , darks and flats.
Taken with ATP, calibrated and stacked in nebulosity, processed in Startools.
As a note, as the focal reducer is made for a flat field RC type scope, it handles the flat field of the edge very well
considering the price compared to the Celestron. Only cost me around £60!
In comparison, here also is my only previous attempt at this object, a year ago.
I find StarTools unbelievable in terms of extracting data from noise and producing a mighty fine image from a very average
Imager!
I am used to imaging at 1200mm or at most 1600mm.
With my 0.75x reducer on the C11, I am now at 2100mm, and that is certainly challenging
On the polar alignment and tracking front.
My stars are a little trailed.
Anyway, here is M101 attempt.
C11 Edge with Revelation 0.75x reducer, QHY10, AZ EQ6 GT
Guided with 60/285 finder, PHD2 and Altair GPCAM2 AR0130 with Baader fringe filter.
39 x 600 secs , darks and flats.
Taken with ATP, calibrated and stacked in nebulosity, processed in Startools.
As a note, as the focal reducer is made for a flat field RC type scope, it handles the flat field of the edge very well
considering the price compared to the Celestron. Only cost me around £60!
In comparison, here also is my only previous attempt at this object, a year ago.
I find StarTools unbelievable in terms of extracting data from noise and producing a mighty fine image from a very average
Imager!