Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  M101  ·  NGC 5457  ·  NGC 5473  ·  NGC 5474  ·  NGC 5477  ·  NGC5447  ·  NGC5449  ·  NGC5450  ·  NGC5451  ·  NGC5453  ·  NGC5455  ·  NGC5461  ·  NGC5462  ·  NGC5471  ·  NGC5473  ·  NGC5474  ·  NGC5477  ·  NGC5484  ·  Pinwheel galaxy
Getting plate-solving status, please wait...
M101 #4 & #5 Combined, 



    
        

            Molly Wakeling
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M101 #4 & #5 Combined

Getting plate-solving status, please wait...
M101 #4 & #5 Combined, 



    
        

            Molly Wakeling
Powered byPixInsight

M101 #4 & #5 Combined

Imaging telescopes or lenses: Vixen NA140SSF

Imaging cameras: Nikon D5300

Guiding telescopes or lenses: Celestron 102mm F/5 Achromat

Guiding cameras: QHY5

Software: Photoshop CC 2018  ·  DeepSkyStacker 3.3.2 DeepSkyStacker3.3.2

Filters: Astronomik CLS 2"


Dates:June 25, 2017July 29, 2017

Frames:
Astronomik CLS 2": 21x360" (2h 6') ISO1600
Astronomik CLS 2": 14x420" (1h 38') ISO1600

Integration: 3h 44'

Darks: ~10

Flats: ~20

Bias: ~21

Avg. Moon age: 3.97 days

Avg. Moon phase: 20.90%

Bortle Dark-Sky Scale: 5.00

Temperature: 14.25


Astrometry.net job: 1990678

RA center: 14h 3' 13"

DEC center: +54° 18' 56"

Pixel scale: 1.164 arcsec/pixel

Orientation: 90.300 degrees

Field radius: 0.958 degrees


Resolution: 4974x3216

Data source: Backyard

Description

As I was going through updating all of my documentation, I realized that I took datasets #4 and #5 on M101 with the same camera and telescope, so I was able to combine them to double the integration time! Also applied new processing techniques.

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Sky plot

Sky plot

Histogram

M101 #4 & #5 Combined, 



    
        

            Molly Wakeling