Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  IC 1805
Melotte 15 (HOO) First Light - ZWO ASI294MM Pro (Updated Image - Initial image uploaded was not the right version), Bradley Watson
Melotte 15 (HOO) First Light - ZWO ASI294MM Pro (Updated Image - Initial image uploaded was not the right version)
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Melotte 15 (HOO) First Light - ZWO ASI294MM Pro (Updated Image - Initial image uploaded was not the right version)

Melotte 15 (HOO) First Light - ZWO ASI294MM Pro (Updated Image - Initial image uploaded was not the right version), Bradley Watson
Melotte 15 (HOO) First Light - ZWO ASI294MM Pro (Updated Image - Initial image uploaded was not the right version)
Powered byPixInsight

Melotte 15 (HOO) First Light - ZWO ASI294MM Pro (Updated Image - Initial image uploaded was not the right version)

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Description

This is my first step into the world of Mono........... can I now truly say I have turned to the darkside, who knows I was excited to start mono as it opens up access to a lot of objects I just can't capture well from my suburban skies. First impressions using a mono camera (ASI 294MM Pro) and narrowband filters are that the contrast is significantly greater, showing clearer the differences in structures and I don't have to wrestle with light pollution. Also, the work load is quite different, requiring a certain amount of patience, there is also greater freedom for "creativity" too!

I have managed to take just 5 useable Dark frames, when I take darkframes they are white and not showing the customary amp glow consistent with this camera, I am a little stumped but need to solve the issue - a master dark consisting of just 5 frames at a specific gain and exposure time will limit what I can do.

I am using 7nm Baader Oiii and Ha CMOS optimised filters and what I have noticed are halos around some of the larger stars, need to figure out how to reduce this, but had stretched them independently and desaturated them to keep them small and not so bluish/green.

Melotte 15 is a wonderful target, high in the sky right now and sits in the centre of IC1805, an emission nebula. Its quite amazing that these young bright stars can form such intriguing shapes within the clouds of gas, the energies involved must pretty significant.

There are still some issues with collimation, but I can live with how it is for the time being as renovating our family home is more important than ensuring that stars in  my images are perfectly round............ at least that's what my wife thinks.

Would love any tips/constructive criticism to help me get better mono ap.

CS
Brad

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