Celestial hemisphere:  Northern  ·  Constellation: Triangulum (Tri)  ·  Contains:  NGC 925
Getting plate-solving status, please wait...
NGC 925 Barred Spiral Galaxy Take 2 in Better Skies, John Jennings

NGC 925 Barred Spiral Galaxy Take 2 in Better Skies

Getting plate-solving status, please wait...
NGC 925 Barred Spiral Galaxy Take 2 in Better Skies, John Jennings

NGC 925 Barred Spiral Galaxy Take 2 in Better Skies

Equipment

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Acquisition details

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Description

I reimaged NGC925 last night.  I managed 13 sorted frames from 20 from the SOFAR remote observatory. Graded and stacked on contrast ratios from CCD Inspector. The result I think is pretty good for an AP155 and a CMOS color camera @ 1103mm fl.   Significant Crop for 10.5" object. If viewed at full resolution you can count a number of other galaxies in the image.
I'm pretty happy with this one.

Fits Header:

COMMENT       1   Written by ASTAP. www.hnsky.org
CALSTAT     = 'DFBS'                                                                
COMMENT   D    = master_dark_20x600s_at_-5C_2021-09-10.fit                           
COMMENT   F    = master_flat_corrected_with_flat_darks_HEUIBU_30xF_25xFD_2021-09-03.f
HISTORY       1   Stacking method SIGMA CLIP AVERAGE                                  
HISTORY       2   De-mosaic bayer pattern used RGGB                                   
HISTORY       3   Colour conversion: AstroSimple interpolation.                       
EXPTIME     = 7800 / Total luminance exposure time in seconds.      
LUM_EXP     = 600 / Average luminance exposure time.               
LUM_CNT     = 13 / Luminance images combined.                     
LUM_DARK    = 20 / Darks used for luminance.                      
LUM_FLAT    = 30 / Flats used for luminance.                      
LUM_BIAS    = 25 / Flat-darks used for luminance.                 
LUM_TEMP    = -5 / Set temperature used for luminance.

Comments

Sky plot

Sky plot

Histogram

NGC 925 Barred Spiral Galaxy Take 2 in Better Skies, John Jennings

In these collections

SOFAR Galaxies