Monday, April 12, 2021

Galaxies Despite the Forecast

The NOAA partly cloudy forecast for Harvard, MA on Thursday 4/8 was not optimistic but Clear Sky Charts showed clear skies with average transparency for the night. My local skies were clear so I decided to gamble on the 45 mile trip to Harvard for a night of Coma Cluster galaxy imaging. For the most part the gamble paid off. All images below were averaged from 16 one minute subframes. While experimenting with image processing I found that applying noise reduction immediately after expanding the histogram to brighten the image makes the histogram more manageable. I'll consider elaborating in a future post.

Messier 49 - Giant Elliptical Galaxy

Messier 60(top) & Messier 59(bottom)

Messier 61 - Barred Spiral Galaxy

Clockwise from top Messier 86, NGC4402, Messier 84, NGC4387, NGC4388


Messier 88

Messier 89 (center)

Messier 90

Messier 98

Messier 99

Messier 100

NGC3521


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