Celestial hemisphere:  Northern  ·  Constellation: Taurus (Tau)  ·  Contains:  M 1  ·  NGC 1952
Crab Nebula, Ron Kramer
Crab Nebula
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Crab Nebula

Crab Nebula, Ron Kramer
Crab Nebula
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Crab Nebula

Equipment

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Acquisition details

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Description

ASI094 OSC (really not best choice but was installed) with the FIRST USE of Ultra Quad filter.

Very pleased with the Ultra Quad. Colors pop and stars are loaded with natural color.

RASA 11" 620 FL.

Later mixed Ha stack from ASI1600mmcool and ES 152mm APO.

I shot 55, 300 sec exposures at 200 gain using NINA (automated). I went to bed... I stacked them in APP (lights only - I rarely if ever used darks or flats as I don't need them). I then do LP removal which was low and adjust in photoshop. It looked WEIRD. LOTS of color and not a lot of detail.

So... I had a old Ha only mono stack from the ASI1600 from several years back. I combined the color stack and the Ha mono stack in Photoshop and VOILA! That gave me the color and detail I craved.

Easy - one night - one click stack. Well including mono - 2 lights 2 stacks into one.

Comments

Sky plot

Sky plot

Histogram

Crab Nebula, Ron Kramer