Celestial hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  B33  ·  Flame Nebula  ·  Horsehead nebula  ·  IC 434  ·  LBN 953  ·  LBN 954  ·  MQ J054119.67-021054.7  ·  MQ J054119.92-022130.6  ·  MQ J054145.48-022416.3  ·  NGC 2023  ·  Orion B  ·  Sh2-277  ·  V0611 Ori  ·  V0612 Ori  ·  V0615 Ori  ·  V0616 Ori  ·  V0619 Ori
Horsehead Nebula, Paul Macklin
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Horsehead Nebula

Revision title: Compromise

Horsehead Nebula, Paul Macklin
Powered byPixInsight

Horsehead Nebula

Revision title: Compromise

Equipment

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Acquisition details

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Description

I've returned to an old favorite, working at the EdgeHD's native focal length. 

This combines 16 hours of 10 min exposures using the Antlia Triband filter, processed with AstroPixelProcessor (stacking, background calibration, +/-star color calibration), PixInsight (BlurXTerminator), and photoshop (basic curves, contrast, NoiseExterminator, Topaz, unsharp mask).

Comments

Revisions

  • Horsehead Nebula, Paul Macklin
    Original
  • Horsehead Nebula, Paul Macklin
    B
  • Horsehead Nebula, Paul Macklin
    C
  • Horsehead Nebula, Paul Macklin
    D
  • Horsehead Nebula, Paul Macklin
    E
  • Horsehead Nebula, Paul Macklin
    F
  • Final
    Horsehead Nebula, Paul Macklin
    G

B

Title: Revised color processing

Description: I updated this by omitting the star color calibration in APP, which really skews the colors and loses some detail. Worked more on curves in photoshop to bring in the fuller blue details.

Uploaded: ...

C

Title: Improved color handling

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D

Title: Just a little more blue

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E

Title: Worked on the orange one.

Description: Worked to avoid washout in the blue reflection nebula. Made teh oranges redder.

Uploaded: ...

F

Title: New mixing

Description: I went back and remixed the color channels in APP before exporting and processing in photoshop. I think this gets tjhe balance of detail, blues in the reflection nebula, and reds in the overall scene

Uploaded: ...

G

Title: Compromise

Description: This overlays version F with 20% transparency (100% opacity) over version D. This gives me just a touch of the blues of the reflection nebula from F over the more natural colors and structure of Version D.

Uploaded: ...

Sky plot

Sky plot

Histogram

Horsehead Nebula, Paul Macklin