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Barnard's Loop Near M78 in Starless Ha, Jim Lindelien

Barnard's Loop Near M78 in Starless Ha

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Barnard's Loop Near M78 in Starless Ha, Jim Lindelien

Barnard's Loop Near M78 in Starless Ha

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Description

The texture of Ha emissions of Barnard's Loop (Sh2-276) in the vicinity of LDN1622 and M78. Down-scaled from a 2-panel mosaic posted at https://www.astrobin.com/30m5zh/?nc=user

For the color rendering I've highlighted textures via both luminance and subtle hue variation by assigning this color palette (over PI's normal intensity range of [0:1]):

Red = Ha signal squared

Green = 25% Ha

Blue = 25% Ha

...plus some curves adjustments.

The StarNet++ process in PI was used to remove the star field.

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Calibration frames from extant libraries.

Unguided mount tracking at King rate.

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Revisions

  • Barnard's Loop Near M78 in Starless Ha, Jim Lindelien
    Original
  • Final
    Barnard's Loop Near M78 in Starless Ha, Jim Lindelien
    B

B

Description: Square crop appeals better to my eye.

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Barnard's Loop Near M78 in Starless Ha, Jim Lindelien