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Contains:  M 101, NGC 5457
Getting plate-solving status, please wait...

M101 - Pinwheel Galaxy

Technical card

Dates:April 8, 2018April 19, 2018April 20, 2018April 21, 2018

Astrodon B Tru-Balance E-Series Gen 2: 141x60" (gain: 76.00) -15C bin 1x1
Astrodon G Tru-Balance E-Series Gen 2: 141x60" (gain: 76.00) -15C bin 1x1
Astrodon L Tru-Balance E-Series Gen 2: 1423x60" (gain: 76.00) -15C bin 1x1
Astrodon R Tru-Balance E-Series Gen 2: 145x90" (gain: 76.00) -15C bin 1x1

Integration: 32.0 hours

Avg. Moon age: 9.16 days

Avg. Moon phase: 30.14%

Bortle Dark-Sky Scale: 7.00

Basic astrometry details job: 2096580

RA center: 14h 3' 6"

DEC center: +54° 21' 43"

Pixel scale: 1.109 arcsec/pixel

Orientation: 270.406 degrees

Field radius: 0.392 degrees

Resolution: 1800x1800

Locations: Home, San Jose, California, United States

Data source: Backyard


Another galaxy from my backyard since I was encouraged by the result of my M51 from the suburb of a big city. Didn't turn out too badly given that the transparency wasn't good one of the nights and there was a quarter moon out a couple of nights. Clear nights are so hard to come by these past few months.



Alan Pham
License: None (All rights reserved)



Description: This revision contains a few more hours of data from the city as well as about 2 more hours of luminance from a dark site. I processed it to reveal more of the fainter stuff. But is it better than the original?

Sky plot

Sky plot


M101 - Pinwheel Galaxy, 


            Alan Pham