Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  HD97455  ·  M 108  ·  M 97  ·  NGC 3556  ·  NGC 3587  ·  Owl Nebula  ·  PK148+57.1
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M 97 (Owl Nebula) and M 108, Steve
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M 97 (Owl Nebula) and M 108

Getting plate-solving status, please wait...
M 97 (Owl Nebula) and M 108, Steve
Powered byPixInsight

M 97 (Owl Nebula) and M 108

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Description

I thought it might be interesting to do straight RGB on the combination of a galaxy and a PN.  M 97 is probaby better narrowband but the result is still pleasant.  I used the same RGGB technique as for M 106 (twice as much G data, use G as luminance).

I also used a technique mentioned by Adam Block which I'd also thought of on my own (really!).  I measured the FWHM of each of the R, G, and B data.  G had the lowest.  I then used BlurXT to shrink the R and B stars proportionately, mainly to avoid blue bloat.

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M 97 (Owl Nebula) and M 108, Steve