North America Nebula, NGC7000

A second take on processing this famous nebula...

 

This is a large object in the sky! The field of view of this image is 3.5 degrees. If you could put a string of full moons in a row you could fit 7 across here. This is my first time using two 200mm lenses. One with a color and the other with a monochrome camera with narrowband filters. I only have 2 of the three narrowband filters I need... still waiting for my Sulphur filter so I can try to get Hubble colors...

 

from science.nasa: "Caldwell 20 is a stunning example of an emission nebula. The clouds of gas that make up the nebula are being ionized by a nearby star, causing the gas to glow as it emits energy. Colors emitted by emission nebulae depend on the chemical composition of the region. The reddish color that is characteristic of hydrogen and dominates Caldwell 20."

 

Askar ACL200: 200mm f/4

ZWO ASI533MC Mono Camera at -20C

47x300s Oiii

18x300s Ha

 

Nikon 70-200mm 200mm f/3.3 (diameter externally reduced)

ZWO ASI533MM Color Camera at -20C

147x60s Ha/Oiii

70x60s rgb

 

Guided on ZWO AM5

Processed with PixInsight, Ps

 

Done