Celestial hemisphere:  Northern  ·  Constellation: Leo (Leo)  ·  Contains:  IC 2725  ·  NGC 3628
NGC3628 GX (Leo) (13.1" - 9.6M) In the Leo Trio - "The Hamburger Galaxy" - 4.83 hrs OSC, John Jennings
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NGC3628 GX (Leo) (13.1" - 9.6M) In the Leo Trio - "The Hamburger Galaxy" - 4.83 hrs OSC

NGC3628 GX (Leo) (13.1" - 9.6M) In the Leo Trio - "The Hamburger Galaxy" - 4.83 hrs OSC, John Jennings
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NGC3628 GX (Leo) (13.1" - 9.6M) In the Leo Trio - "The Hamburger Galaxy" - 4.83 hrs OSC

Equipment

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Acquisition details

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Description

It took 3 nights to collect enough subs for the Hamburger. I was only able to acquire partial runs each night due to the rude Texas weather. Wind storms and tornadoes were lurking around this week. Tuesday night I was watching the run with auto-guiding showing an excellent (for me) 0.19 RMS on the Dec and 0.249 RMS on the RA axis when wham.... the roof of the remote observatory closed due to sudden winds of about 45 mph. It wasn't predicted to do that. So much for Tuesday.  I managed to cobble together about 29 subs @ 10 mins over 3 nights this week with the 155. I threw away about that many due to erratic weather.  

I think the Hamburger is served!

John

HISTORY       1   Stacking method SIGMA CLIP AVERAGE                                  
HISTORY       2   De-mosaic bayer pattern used RGGB                                   
HISTORY       3   Colour conversion: AstroC, colour for saturated stars. interpolation
EXPTIME     = 17400 / Total luminance exposure time in seconds.      
LUM_EXP     = 600 / Average luminance exposure time.               
LUM_CNT     = 29 / Luminance images combined.                     
LUM_DARK    = 20 / Darks used for luminance.                      
LUM_FLAT    = 40 / Flats used for luminance.                      
LUM_BIAS    = 0 / Flat-darks used for luminance.                 
LUM_TEMP    = -5 / Set temperature used for luminance.

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NGC3628 GX (Leo) (13.1" - 9.6M) In the Leo Trio - "The Hamburger Galaxy" - 4.83 hrs OSC, John Jennings