Variations on OSC, dual narrow on the North America NGC 7000

Started 2 months ago | Discussions thread
elgol20
OP elgol20 Contributing Member • Posts: 807
Re: Variations on OSC, dual narrow on the North America NGC 7000

some say with dual narrowband you cannot produce ok star colors. why not? RGB is there, so, if stars are separated, one should be able to get decent star colors

Ha extraction

OIII

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