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Contains:  NGC 4438, The Eyes, NGC 4435
Getting plate-solving status, please wait...

Close up of Markarian's Eyes

Technical card

Imaging telescope or lens:Celestron Edge 11HD

Imaging camera:QHYCCD QHY814A

Mount:Astro-Physics AP 900 GTO CP3

Guiding telescope or lens:Celestron Edge 11HD

Guiding camera:ZWO ASI174MM

Resolution: 5066x4210

Dates:April 17, 2019

Frames: 190x300"

Integration: 15.8 hours

Avg. Moon age: 12.57 days

Avg. Moon phase: 94.66%

Astrometry.net job: 2672699

RA center: 186.928 degrees

DEC center: 13.044 degrees

Pixel scale: 0.208 arcsec/pixel

Orientation: 85.912 degrees

Field radius: 0.191 degrees

Data source: Own remote observatory

Remote source: Marathon Remote Imaging Observatory (MaRIO)

Description

This is shot using equipment shared by me and Dhaval Bhrambatt in Marathon, Texas.

My main objective with this setup was to go after small target and focus mainly on resolution. However, this target almost filled up the FOV, leaving very little wiggle room to crop. I love interacting pairs and this one has very interesting structure due to the encounter. The dark dust of NGC4438 is especially interesting.

I had major issues completing this image. My OAG somehow lost focus and I had to use large , barely selectable star to guide. In addition, with frequent storms, the only time I managed to image was with quarter moon up in the sky near the target. I mostly got 5 minute subs instead of the usual 10 min.

The resolution looks good but due the small FOV at this focal length, there is no place to hide issues :) . I really should look into larger chip to get more breathing room.

Processed in Pixinsight and tweaked in photoshop.

Comments

Author

anismo
Anis Abdul
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Close up of Markarian's Eyes, 





    
        

            Anis Abdul