A Closer look at M 104 (Jon Talbot)

Celestial hemisphere: Southern · Constellation: Virgo (Vir) · Contains: M 104 · NGC 4594 · Sombrero Galaxy

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A Closer look at M 104

Link: https://www.starscapeimaging.com/M104_2022/M104_2022.html

Powered byPixInsight

A Closer look at M 104

Link: https://www.starscapeimaging.com/M104_2022/M104_2022.html

M 104 has always been one of my favorite galaxy’s. I try to image it every few years. Since I upgraded my scope a few years ago I imaged it once but not at the full resolution possible. This year I figured I’d try that. My 6” refractor has a max theoretical resolution of .76 arc seconds using the Dawes limit. My 1x1 bin resolution is .64 arc seconds so I’m well sampled in my typical seeing of around 1.8-2 arc seconds. I shot all my luminance data using very short 60s exposures and RGB using 120sec unguided exposures. Some RGB I shot at 300sec only because I hadn’t changed the automation script yet. In any case the short exposures really helped with retaining pinpoint stars. I ended up with about 2hrs 50min of luminance data which isn’t very deep but M 104 is bright. That combined with the RGB data gave a total exposure time of 11hrs or so. In processing I decided to drizzle the data up. It would provide no increase in resolution at all but provide a more pleasing image scale to work with. The drizzled data was .32 arc sec/pixel and that is the image here. The image is cropped to show only the area around M104. I think this is about the best one can do with this sized aperture. Hope you enjoy it.

ASI 6200 MM Pro
"Simply Stellarvue"
Suburban Astrophotography
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Astrometry.net job	6191581
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A Closer look at M 104

A Closer look at M 104

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A Closer look at M 104

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