Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 97  ·  NGC 3587  ·  Owl nebula  ·  PK148+57.1
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M97 HOO, 



    
        

            mikefulb
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M97 HOO

Getting plate-solving status, please wait...
M97 HOO, 



    
        

            mikefulb
Powered byPixInsight

M97 HOO

Acquisition details

Dates:
March 17, 2019 ·  March 19, 2019 ·  March 22, 2019 ·  March 23, 2019 ·  March 26, 2019 ·  March 27, 2019
Frames:
Astrodon Ha 1.25" 5nm: 145×300(12h 5′) (gain: 200.00) -20°C bin 1×1
Astrodon OIII 1.25 3nm: 115×600(19h 10′) (gain: 200.00) -20°C bin 1×1
Integration:
31h 15′
Avg. Moon age:
16.60 days
Avg. Moon phase:
81.83%

RA center: 11h14m48s.29

DEC center: +55°0118.7

Pixel scale: 1.120 arcsec/pixel

Orientation: 179.966 degrees

Field radius: 0.227 degrees

More info:Open 

Resolution: 1143x905

File size: 774.3 KB

Data source: Backyard

Description

I pushed this more than normal to see the OIII shell better. I also used some 600s exposures with my ASI1600MM at gain 200 which was the longest I had ever tried. I tried blending in RGB stars which is not something I normally do. I used some high pass filtering to bring out contrast inside the 'Owl' area. The background was difficult to control so it ended up darker than I normally like. Overall an image with compromises but a real learning experience for me.

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