Celestial hemisphere:  Northern  ·  Constellation: Auriga (Aur)  ·  Contains:  18 Aur  ·  19 Aur  ·  HD242381  ·  HD242469  ·  HD242512  ·  HD242528  ·  HD242656  ·  HD242675  ·  HD242704  ·  HD242716  ·  HD242784  ·  HD242785  ·  HD242799  ·  HD242800  ·  HD242809  ·  HD242810  ·  HD242819  ·  HD242820  ·  HD242829  ·  HD242855  ·  HD242856  ·  HD242887  ·  HD242898  ·  HD242908  ·  HD242909  ·  HD242925  ·  HD242926  ·  HD242935  ·  HD242947  ·  HD243004  ·  And 62 more.
Getting plate-solving status, please wait...
The Tadpole Nebula (IC410) in Narrowband, mlewis
Powered byPixInsight
Getting plate-solving status, please wait...
The Tadpole Nebula (IC410) in Narrowband, mlewis
Powered byPixInsight

Equipment

Loading...

Acquisition details

Loading...

Description

So this is a set of data I took earlier this year. I was having some issues with my remote setup at the time and didn't like some aspects of how things were working and so I went off on a troubleshooting sidetrack and never got back to this. Eventually I kinda forgot I had taken the data at all. As it turned out, even with some issues the data was good enough to make a decent image, although I think it could have benefitted from more subframes. As it is, I ended up with about 8 and 1/2 hours worth of frames, mostly in narrowband, with a typically small stack of RGB data to add back in natural color stars.

This is my second image using a new mixing technique I saw at www.thecoldestnights.com, a wonderful site with impressive astro images and some informative tutorials, including one covering 'Dynamic narrowband combinations with PixelMath'. Check out that site - truly impressive astrophotography there, as well as some very well written tutorials on a couple of topics. I also used the NormalizeScaleGradient PI script for the first time on this data and I do think it helped with 'simplifying' the gradients to be removed at the end of pre-processing.

This object is reasonably bright, and does have signal in all 3 narrowband wavelengths that are typically used. As is often the case, the Hα signal is the strongest, with the OIII and SII signals being noticeably weaker. I would have taken a little more data in SII and OIII to compensate a bit had I not interrupted my data collection on this.

IC410, as it is otherwise known, is a nebula in the constellation Auriga, and is located approximately 12,000 light years away from Earth. A number of newborn stars have been detected in this relatively energetic star forming region. The namesake tadpoles can be seen just left of center of the image, 'swimming' towards the center of the frame

Comments

Revisions

  • The Tadpole Nebula (IC410) in Narrowband, mlewis
    Original
  • The Tadpole Nebula (IC410) in Narrowband, mlewis
    B
  • Final
    The Tadpole Nebula (IC410) in Narrowband, mlewis
    C

B

Description: Star reduction using Bill Blanshan's excellent PixInsight scripts

Uploaded: ...

C

Description: Some more noise reduction using a process unavailable originally (NoiseXterminator)

Uploaded: ...

Sky plot

Sky plot

Histogram

The Tadpole Nebula (IC410) in Narrowband, mlewis