Quote:
Originally Posted by Nikolas
nice work for such a small window of acquisition mate can you tell us more about the newt? the diffraction spikes are almost non existent
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Thanks Nik
Yeh a very small window of opportunity plus less than ideal sky conditions
I bought the Klaus Helmerich OTA tube only through Paul at Sidereal, they are the Aussie distributor. They are handmade by Klaus in Germany to most specifications ( I chose GSO ) 5 months lead time too. I bought my GSO gear separately and built the scope myself.
There’s quite a few reasons why this image doesn’t have prominent diffraction spikes -
1/ The L Extreme OSC narrowband filter tends to “soften” the spikes compared to RBG images
2/ Conditions were poor so SNR was down , noise floor high which tends to bury the spikes amongst the noise. When conditions are very good my spikes are spikes like swords
3/ M16 only has a hand full of medium sized stars which are picked up by my Newt.All my f5 Newts only show diffraction spikes on the brighter stars ( RC’s tend to pick up spikes on loads of stars ?? )
4/ I was to heavy handed with Star reduction and dampening the background
Here’s another version ( re process ) which shows the diffraction spikes a bit more prominent
Cheers
Martin