Flaming Star IC405 IC410 (Jay Sanchez)

Celestial hemisphere: Northern · Constellation: Auriga (Aur) · Contains: 24 Aur · 25 Aur · Flaming Star Nebula · IC 405 · IC 417 · M 38 · NGC 1893 · NGC 1912 · The star 14 Aur · The star 16 Aur · The star 17 Aur · The star 18 Aur · The star 19 Aur · The star φ Aur · The star χ Aur

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Flaming Star IC405 IC410

Revision title: Re Processed

Powered byPixInsight

Flaming Star IC405 IC410

Revision title: Re Processed

I'm still evaluating my Askar 135. I think there is a slight mis-collimation. Stars came out slightly elongated and I notice that it gets more oblong as I move away from focus - I thought star shapes would get bigger but not change shape. I will check again next clear night and really go out of focus on both sides of focus and check the shape. What really makes this even more challenging is my own eyesight -- as I physically move my head closer/farther away from a screen, stars change shape. If I'm too close to a computer screen, stars go oblong one way -- too far and stars elongate the other way. I'm thinking of sending the Askar back and trying another copy.

To eliminate guiding errors contributing to the star shapes, I photographed short subs (:30s) for the RGB stars, which I deconned (via PI) to further improve the shape. My stars with the 600s subs were atrocious.

UPDATE: the replacement ASKAR 135 works great. No more astigmatism. I photographed a OSC RGB session for the stars with the new ASKAR and used that in the final version.

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B

Title: Re Processed

Description: Re processed work flow using BXT before separating the stars and afterwards on the starless layer.
Now with a new star layer photographed with the replacement Askar 135.

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Astrometry.net job	6812693
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Flaming Star IC405 IC410

Revision title: Re Processed

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