Celestial hemisphere:  Northern  ·  Constellation: Taurus (Tau)  ·  Contains:  11.53  ·  61 Tau)  ·  61 del Tau  ·  68 Tau  ·  74 Tau)  ·  74 eps Tau  ·  95 Arethusa  ·  Ain  ·  Hind's variable nebula  ·  Hyadum II  ·  Hyadum II (δ1 Tau  ·  LBN 817  ·  LBN 819  ·  LBN 821  ·  LDN 1543  ·  LDN 1546  ·  LDN 1551  ·  NGC 1554  ·  NGC 1555  ·  Oculus Boreus (ε Tau  ·  PGC 138734  ·  PGC 1560699  ·  PGC 1561734  ·  PGC 1574269  ·  PGC 1581207  ·  PGC 1600055  ·  PGC 1605609  ·  PGC 1612396  ·  PGC 1613300  ·  Part of the constellation Taurus (Tau)  ·  And 7 more.
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Sh2-239 and Hind's Variable Nebula in a different light, Göran Nilsson
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Sh2-239 and Hind's Variable Nebula in a different light

Getting plate-solving status, please wait...
Sh2-239 and Hind's Variable Nebula in a different light, Göran Nilsson
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Sh2-239 and Hind's Variable Nebula in a different light

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Description

These relatively often imaged objects are usually imaged in RGB. In fact I have not been able to find any narrow band images of this area. However, as the moon was out I decided to keep the NBZ dual band (Ha+Oiii) filter on, and hoped there would be a significant amount of Ha and Oiii emission in this area. To my surprise it picked up a lot of it, especially red (presumably Ha emitting) dust. It even picked up dust in areas where little or no dust is seen in RGB images, giving a rather different overall structure to these objects compared to what RGB images show. For example, this excellent IOTD by Jarrett Trezzo provides a striking comparison: https://www.astrobin.com/cmsh7t/E/.  Especially the dusty area in the central part of the image, catalogued by Lynds as LBN 819, is much larger in my NB image compared to RGB images.

Sh2-239 in the lower left, and Hind's Variable Nebula (aka NGC1444 or Sh2-238) in the upper right, both include Herbig-Haro objects. HH 102 respectively HH 155.

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