Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  IC 1590  ·  NGC 281
NGC-281 HOO, John
NGC-281 HOO
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NGC-281 HOO

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Description

First time using the ASI183 MC Pro -Monochrome and exclusive narrowband filters.  Had some issues getting good focus and then some guiding issues that caused me to have to toss ~30 subs.

I think the back focus is also a little further than the 105mm needed with my reducer.  I was anxious to try it out and ended up using the same setup as I do with my ASI071 when in the same configuration.

You definitely realize the benefits of shooting a OSC with a tri-band filter and shooting at f/1.9 versus f/7 with separate filters, which I did here.  The mono does for sure capture more subtle details.

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NGC-281 HOO, John

In these public groups

NOVAC