NGC 4565 in Coma Berenices



Scope: C8 f/7.5; Location: Dos Picos Park, Ramona, CA;  31 January 2009; Camera: Artemis285

Exposure: 10 x 6 min Luminance exposure (bin 1x1) with Baader IR Block Filter; 7 x 3 min RGB (bin 2x2)

Processing: Images were captured Artemis Capture (as FITs). Aligned/stacked and dark subtracted in Astroart with Sigma Combine. Luminance and Color channels were scaled and rough color balanced in Astroart.  Central Gradient was removed on all channels in Astroart. Channels were co-registered in Astroart. The 6 minute IR block exposures were used for the main luminance construction with level adjustments and curves to bring out object features.   LRGB combine was done in Photoshop. G2V  factors applied to color channels.  Background noise reduction was applied in Photoshop.  Selective sharpening was applied to galaxy features. Final Image size is approximately 1392x1040.

This image was guided; North is to the left.  This galaxy, NGC4565, is obviously an edge on galaxy- one of the more well known. Also in this image is a small magnitude 16 galaxy, IC3571 - it is located to the left the core of NGC 4565.  It is just a faint smudge. NGC 4565 is about 31 million light years distant from Earth. This image replaces an earlier image that can be seen in the Archives here. Horizontal FOV is 20'.

Image Center is approximately - Equatorial 2000: RA: 12h 36m 20s Dec: +2559'16"


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