Leo Trio Update

This trio of galaxies in Leo lie some 30 million light years away and form a great spring target for midsized telescopes. The 90 minutes I shot last night was neither better nor worse than this version from last year:

www.flickr.com/photos/124244349@N07/40734269251/in/photos...

So I combined the two, simply averaging this year's image into last year's (literally -- the Pixel Math function in PixInsight enabled me to add the values of each pixel and divide by two). There's no dramatic increase in detail but the averaged image has a cleaner, less noisy look when you click in for maximum resolution.

 

Tech Stuff:

Camera: ZWOASI1600 MC

2019: Borg 71FL/1.08X multi-flattener/IDAS LPS-D2 filter/ iOptron CubePro 8200 mount unguided; 88 minutes of 8 second exposures

2018: TV-85/Baader MPCIII corrector/Astronomik CLS filter/Skywatcher Star Adventurer portable mount, guided and unguided; 120 minutes of 30 and 15 second exposures

 

Captured with SharpCap Pro from my yard 10 miles north of New York City, and processed with PixInsight.

Done