Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  56 Cyg  ·  57 Cyg  ·  IC 5070  ·  Pelican Nebula  ·  The star 56Cyg  ·  The star 57Cyg
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IC 5070, Pelican Nebula, HαRRGB, 16 Jun + 14 Aug 2015, David Dearden
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IC 5070, Pelican Nebula, HαRRGB, 16 Jun + 14 Aug 2015

Equipment

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Acquisition details

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Description

Clouds ended the Hα session much too early, so this needs more Hα. Combined with 16 Jun 2015 RGB.

Hα processing:

Date: 14 Aug 2015

Subject: IC 5070, Pelican Nebula

Scope: Orion ST-80+Antares 0.5x focal reducer

Filter: Baader 7 nm Hα

Mount: CG-5 (Synta motors, PicGoto Simplificado)

Guiding: 9x50 Finder/Guider + DSI Ic + PHD 2.5.0 (Win 7 ASCOM)

Camera: DSI IIc no cooling (about 20 °C)

Acquisition: Nebulosity 4.0.2, no dither

Exposure: 15x600 s

Stacking: Neb 4.0.2, bad pixel map, bias included, 33 flats, extract R, histogram match, square. 40-60tile stacking.

Processing: StarTools 1.3.5.289 Crop; Develop: 80.11%; HDRptimize; Color:Scientific 250%; Deconvolute 3.3 pix; Track 4.5 pix, smoothness 88%. Photoshop CC 2014 + Carboni Astronomy Tools Deep space nr; Increase star color; Curves; Astroframe.

Healed out the stars and sharpened the Hα. HαR used both for R channel and for luminance. Used the stars-only RGB to retrieve some of the star color.

B revision: smoothed a bit more in Photoshop to get rid of some of the color noise. Also adjusted colors a bit and increased saturation a bit in the red channel.

Comments

Revisions

  • IC 5070, Pelican Nebula, HαRRGB, 16 Jun + 14 Aug 2015, David Dearden
    Original
  • Final
    IC 5070, Pelican Nebula, HαRRGB, 16 Jun + 14 Aug 2015, David Dearden
    B

Sky plot

Sky plot

Histogram

IC 5070, Pelican Nebula, HαRRGB, 16 Jun + 14 Aug 2015, David Dearden