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Old 24-08-2023, 03:16 PM
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Swagman105 (Geoff)
swagman105

Swagman105 is offline
 
Join Date: Jun 2014
Location: Highton, Victoria, Australia.
Posts: 83
Star image enhancement

HI Crater
We must be on the same wave length as had been considering something like that as one of my projects for the coming imaging season.
I have read of programmes that can provide artificial diffraction spiking of stars, but prefer to do it with direct imaging.
I've attached two images I took a little while ago and thought the effects were pretty cool. I was hoping to incorporate some of these effects into some of my normal imaging.
The first image here was one I took through a 6" SCT. I reckon the SCT spikes could be replicated by placing some cross wires in front of the objective of a refractor to imitate the secondary vanes of a reflector.
The second image was one I took while a Bahtinov mask was still in place on my 80mm refractor.
Both images were of Canopus (I think) and are heavily cropped. I'm afraid I cant find any record of the exposure time.
Hope this might offer some ideas.
Attached Thumbnails
Click for full-size image (Diffraction spikes around a bright star..jpg)
85.2 KB54 views
Click for full-size image (bahtinov image (Medium).JPG)
82.7 KB70 views
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