Celestial hemisphere:  Northern  ·  Constellation: Auriga (Aur)  ·  Contains:  IC 410  ·  NGC 1893  ·  Sh2-236
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IC 410, Tadpole Nebula, HαRGB, David Dearden
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IC 410, Tadpole Nebula, HαRGB

Getting plate-solving status, please wait...
IC 410, Tadpole Nebula, HαRGB, David Dearden
Powered byPixInsight

IC 410, Tadpole Nebula, HαRGB

Equipment

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Acquisition details

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Description

I’m slowly learning how to use my new camera and how to process monochrome data. In this image I used 4 hr of Hα for luminance and 1 hr each of R, G, and B for color. The nebular structure hardly shows up except in the Hα. I’m still having color gradient issues; I suspect my flats were not very good and that’s what causes this. I’m having trouble getting the color channels perfectly aligned; I may want to try Deep Sky Stacker to see if it does better (and if it can handle files this large!). Still, this image is far, far better than my last one of this object.

Date: 28 Dec 2016

Subject: IC 410, Tadpole Nebula

Scope: AT8IN+High Point Scientific coma corrector

Filters: ZWO 31 mm LRGB, ZWO 7nm Hα

Mount: EQ-6 (EQMOD)+PEC

Guiding: Orion TOAG +DSI Ic+PHD 2.6.2.4 (Win 10 ASCOM)

Camera: ASI1600MM-Cool, -20 °C, acquired Hα 1x1 RGB 2x2

Acquisition: Sequence Generator Pro 2.6.0.1

Exposure: 12x300 s with RGB, 24x600 s Hα

Stacking: Neb 4.1.2, flats & darks, trans+rot align, Nebulosity 40-60%tile stack.

Processing: align and combine the unstretched R, G, B. Stretch and sharpen the Hα data aggressively, the RGB less so in StarTools 1.4. Add the Hα as luminance to the RGB in Photoshop CC 2014 with Carboni’s Astronomy Tools, adjust curves on background to get colors about right, GradientXTerminator to take out some of the color cast.

Comments

Revisions

  • IC 410, Tadpole Nebula, HαRGB, David Dearden
    Original
  • Final
    IC 410, Tadpole Nebula, HαRGB, David Dearden
    B

B

Description: Same data, but using Deep Sky Stacker to align the color channels, with a couple of applications of GradientXTerminator.

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Sky plot

Sky plot

Histogram

IC 410, Tadpole Nebula, HαRGB, David Dearden

In these public groups

ZWO ASI1600MM/QHY163M