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LBN 691, NGC2976, and IFN, Göran Nilsson
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LBN 691, NGC2976, and IFN

Getting plate-solving status, please wait...
LBN 691, NGC2976, and IFN, Göran Nilsson
Powered byPixInsight

LBN 691, NGC2976, and IFN

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Acquisition details

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Description

The Integrated Flux Nebula (IFN) in this particular area not far from M81 and M82 is rarely imaged. NGC2976 up in the left corner of this image is that small galaxy often caught together with M81 and M82 so those more iconic galaxies are lurking just a bit above this image. With the RASA I found the IFN to be quite colourful with both grayish and reddish reflecting dust. It is generally throught that these clouds are on the outer edges of our galaxy and, unlike "ordinary" reflection nebulae, are reflecting the light of the whole galaxy and are thereby very faint and usually not readily detected with small aperture (low f-ratio) telescopes.

But clearly they are not all gray; some also reflect red even if they are not the usual Ha emitting nebulae (see http://www.deepskycolors.com/archive/2017/01/01/Clouds-Of-Andromeda.html). Indeed, that is why IFN often looks slightly reddish, as in my recently posted images from this area (the Angel and Volcano IFN nebulae), but in the area imaged here there seems to be a very clear separation of the gray and red IFN.

Comments

Revisions

  • LBN 691, NGC2976, and IFN, Göran Nilsson
    Original
  • LBN 691, NGC2976, and IFN, Göran Nilsson
    C
  • LBN 691, NGC2976, and IFN, Göran Nilsson
    D
  • Final
    LBN 691, NGC2976, and IFN, Göran Nilsson
    E

C

Description: EZ star reduction

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D

Description: Reprocessed with StarXT and NoiseXT

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E

Description: Reprocessed using the new XTerminator tools

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Sky plot

Sky plot

Histogram

LBN 691, NGC2976, and IFN, Göran Nilsson