Cookie consent

AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.

I agree
Getting plate-solving status, please wait...
Sh2-170 • The Little Rosette Nebula in SHO, 


            Douglas J Struble
Sh2-170 • The Little Rosette Nebula in SHO

Sh2-170 • The Little Rosette Nebula in SHO

Technical card

Resolution: 2442x1953

Dates:Oct. 21, 2018Oct. 22, 2018Oct. 23, 2018Oct. 24, 2018Oct. 25, 2018Oct. 26, 2018

Astrodon Ha 5nm: 228x120" (gain: 200.00) -20C bin 1x1
Astrodon Ha 5nm: 206x240" (gain: 75.00) -20C bin 1x1
Astrodon OIII 3nm: 39x120" (gain: 200.00) -20C bin 1x1
Astrodon OIII 3nm: 105x240" (gain: 75.00) -20C bin 1x1
Astrodon SII 3nm: 118x120" (gain: 200.00) -20C bin 1x1
Astrodon SII 3nm: 90x240" (gain: 75.00) -20C bin 1x1

Integration: 39.6 hours

Darks: ~50

Flats: ~50

Bias: ~250

Avg. Moon age: 14.09 days

Avg. Moon phase: 96.34%

Bortle Dark-Sky Scale: 6.00 job: 2477402

RA center: 0.389 degrees

DEC center: 64.642 degrees

Pixel scale: 1.011 arcsec/pixel

Orientation: 357.743 degrees

Field radius: 0.439 degrees

Locations: Backyard Red Zone Observatory, Taylor, MI, Michigan, United States

Data source: Backyard


I combined data from my new 12" GSO f/4 Truss Newtonian with data from my friend Chuck's data from a Explore Scientific 127mm at f/7.5. It was an interesting experiment.

This small Sharpless object sits high in the northern fall sky north of SH2-171 which is a common object imaged and south of Abell 85, a supernova remnant. Often called the small rosette due to its resemblance to the original, this small Sharpless object is five times smaller in size and much less bright than the Rosette Nebula. Therefore it is not a common imaging target.



Douglas J Struble
License: None (All rights reserved)

Sky plot

Sky plot


Sh2-170 • The Little Rosette Nebula in SHO, 


            Douglas J Struble