In the Vicinity of the Cone Nebula (Ha, OIII, RGB) (Ray Liao)

Celestial hemisphere: Northern · Constellation: Monoceros (Mon) · Contains: Christmas Tree cluster · Cone nebula · NGC 2259 · NGC 2264 · The star 15Mon

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In the Vicinity of the Cone Nebula (Ha, OIII, RGB)

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In the Vicinity of the Cone Nebula (Ha, OIII, RGB)

Subframes taken from 2019 Nov. ~ Dec., in Lijiang, China.

Ha: 15min x 34

OIII: 15min x 39

Red: 5min x 30

Green: 5min x 32

Blue: 5min x 36

Mainly in RGB, with 30% Ha to enhance some details. When finished, adding OIII to Blue (more) and Green (less).

An interesting feature of this image is that an Olll filter was used to bring out the doubly ionized oxygen in the outer reaches of the Fox Fur Nebula . The use of the Olll filter is responsible for the electric blue color but should not be confused with the dust surrounding S Mon at the center which also photographs blue.

China Lijiang Gemini Observatory

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In the Vicinity of the Cone Nebula (Ha, OIII, RGB)

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In the Vicinity of the Cone Nebula (Ha, OIII, RGB)

In the Vicinity of the Cone Nebula (Ha, OIII, RGB)

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