Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  Bubble Nebula  ·  NGC 7538  ·  NGC 7635  ·  PK110-00.1  ·  Sh2-157  ·  Sh2-158  ·  Sh2-159  ·  Sh2-162
Sh2-157 - Lobster Claw and Friends / 2020, Mikko Viljamaa
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Sh2-157 - Lobster Claw and Friends / 2020

Sh2-157 - Lobster Claw and Friends / 2020, Mikko Viljamaa
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Sh2-157 - Lobster Claw and Friends / 2020

Equipment

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Acquisition details

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Description

The TAK is finally back from the service. Due to the COVID it took forever but according to the folks of Land and Sea it needed collimation badly (spoiler alert - I knew that). When checking the scope now with the CCD Inspector the image circle is technically flat with the new 0.6 reducer. However, I'm not totally satisfied how the stars look in the corners (you really cannot see this unless you zoom in 200% or more).

I'm not sure from where this is coming from but nevertheless I'm expecting more from this caliber scope and will try to find why this is.

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Sh2-157 - Lobster Claw and Friends / 2020, Mikko Viljamaa