Orion Nebula & Horsehead Nebula Widefield, seasonzhang813

Orion Nebula & Horsehead Nebula Widefield

Orion Nebula & Horsehead Nebula Widefield, seasonzhang813

Orion Nebula & Horsehead Nebula Widefield

Equipment

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Acquisition details

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Description

Combine my previous shot of m42 & ic4343 together

horsehead:

WO 81GT + h18 Ha: 590min

Canon 70-200 @ 200mm f4 R:90min bin2 G:80min bin2 B:80min bin2

m42:

WO GTF81+ h18 Ha:200min core:15s, 20s X15

WO 81GT+ 460ex R:G:B - 60:60:60min bin2 core:10s X10

The ultrawide field Constellation Orion Ha is shot using

Canon 70-200 @ 70mm f4 + 460ex

Five mosaic for each frame at 2hr

Because the field is so wide, flex and image distortion is inevitable, I cant find a good tutorial to deal with it. It becomes serious even in just 4 mosaic frames combined which spans about 30X20 degree of the sky.

Therefore I discard the SH2-264 nebula as it was severely distorted.

Comments

Revisions

  • Final
    Orion Nebula & Horsehead Nebula Widefield, seasonzhang813
    Original
  • Orion Nebula & Horsehead Nebula Widefield, seasonzhang813
    B
  • Orion Nebula & Horsehead Nebula Widefield, seasonzhang813
    C
  • Orion Nebula & Horsehead Nebula Widefield, seasonzhang813
    D

Histogram

Orion Nebula & Horsehead Nebula Widefield, seasonzhang813

In these public groups

China Lijiang Gemini Observatory