Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 97  ·  NGC 3587  ·  Owl Nebula  ·  PK148+57.1
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Owl Nebula, Kevin Covey
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Owl Nebula

Getting plate-solving status, please wait...
Owl Nebula, Kevin Covey
Powered byPixInsight

Owl Nebula

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Description

The subframes were captured over 18 nights from April 28th to June 4th.

The data set consists of the following:

L = 15 x 600s

R = 15 x 600s

G = 10 x 600s

B = 10 x 600s

Ha = 40 x 1800s

OIII = 40 x 1800s

The data was combined as LRGB and HOO

I don't think I really needed all that Ha data. There doesn't appear to be that much Ha present in the nebula. The OIII on the other hand revealed a nice outer band beyond the core of the nebula.

I tried a couple of new pixinsight tools this time that I hadn't used before, notably the NormalizeScaleGradient script and GradientHDRCompression. Both tools proved to be an improvement over my usual processing flow.

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Owl Nebula, Kevin Covey