Untitled Document

M101

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M101 is a grand design spiral galaxy that is 2/3 larger than our own Milky Way, spanning some 170 billion light years across.  It is seen nearly face on from our perspective.

Acquisition Details

LUM = 48x10min               
OSC = 58x10min
Total = 17hrs 40min


2017

SV80ST f/6  
QHY163M
 Optolong LRGB
Mach1GTO 

L=112x1min  RGB=45x2min each
Total time = 6hrs 22min                                          
This is my first LRGB image with a new camera (QHY163M).   Processing done in PixInsight.


2015

APM115 @ f/5.4  Riccardi .75x Reducer  Atik 383L+  Losmandy G11 Gemini 2

L=14x15min   B=11x15min
G=8x15min
R=6x15min  Ha=11x20min
Total time = 13.5hrs   

Subs calibrated, registered and stacked with DeepSkyStacker Photoshop: levels/curves, smartsharpen filter, high pass filter, reduce noise filter, Gradient Xterminator


2012

APM115 @ f/5.1 AP 27TVPH reducer
Atik 383L+
Losmandy G11 

L=45x10min
RGB=18x10min each  Total time = 16.5hrs  

Subs calibrated, registered and stacked with DeepSkyStacker Photoshop: levels/curves, smartsharpen filter, high pass filter, reduce noise filter, Gradient Xterminator  This image is the first taken with an AP 27TVPH reducer, without a flattener. The stars have an irregular shape that I hope will be resolved with the addition of a field flattener.


2011

Atik 383L+
AT8RC @ f/6.2  CCD67T Reducer Losmandy G11 guided with AT65EDQ, Lodestar, PHD Guiding 

L=34x10min  RGB=12x10min each


2009