Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent Nebula  ·  NGC 6888
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Crescent Nebula, Michael Vincent
Crescent Nebula
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Crescent Nebula

Getting plate-solving status, please wait...
Crescent Nebula, Michael Vincent
Crescent Nebula
Powered byPixInsight

Crescent Nebula

Equipment

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Acquisition details

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Description

---Capture---
120 Ha at 300s, 200 gain 50 offset, -15deg
181 O3 at 300s, 200 gain 50 offset, -15deg
Bortle 7 suburban zone

---Calibration---
50 darks    300s    -15deg
25  Ha flats    .20s    -15deg
25  O3 flats    .20s    -15deg
50 dark flats    .20s    -15deg

---Registration---
SubframeSelector weighting on each filter using Aggressive FWHM formula
https://drive.google.com/file/d/0B2J4InZni9UrTW13bWRUZEZla1U/view?resourcekey=0-f7ZHGViEUz5trtD0CxMAHw
Register on highest weighted Ha frame: HA_0066

---Integration---
Weight with SSWEIGHT
Biweight midvariance
Generate drizzle data
Winsorized Sigma Clipping

2x Drizzle Integration

---Linear processing---
Crop
AutomaticBackgroundExtraction on each channel
LinearFit O3 to Ha
Combine with PixelMath, RGB={Ha;0.3*Ha+0.7*O3;O3}
Background neutralization
ColorCalibration (white is a group of stars with varying hues)

---Non-Linear processing---
EZ Soft Stretch
CurvesTransformation and Saturation

Comments

Revisions

  • Crescent Nebula, Michael Vincent
    Original
  • Final
    Crescent Nebula, Michael Vincent
    B

B

Description: Now with BlurXTerminator

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Crescent Nebula, Michael Vincent