Quote:
Originally Posted by PKay
Really good LIS.
In all my years, never managed more than a fuzzy blob.
You must know what you are doing!
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Thanks Peter. Mars can be a challenging target. I wouldn't say that I know what I'm doing it's more luck than anything. It also helps when Mars has a close opposition cycle as it does now. Give us small aperture guys a chance to see some finer details. If there was ever a time to image Mars with a small scope it would be now, as it won't be this size again for another 15 years.
Quote:
Originally Posted by Startrek
That's a great image of the Red planet,plenty of surface detail
Such a difficult planetary target
Well done !!
Looking at your set up -
130mm APO focal length 910mm
Focal length f7
2 x Barlow used
So you were imaging that night at f14
Camera pixel size 2.9uM
General rule of thumb for Planetary Imaging
Bad seeing 3.5 x pixel size ( focal ratio f10 )
Average seeing 5 x pixel size ( focal ratio f14.5 ) *****
Good seeing 7 x pixel size ( focal ratio f20 )
Any idea what the seeing was like ?
Was Mars bouncing around or fairly stable during your sampling ?
Just curious
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Thanks Martin. I find the 290MM to be a perfect match for this scope. However, I want to pair it with a 2.5x Powermate as I feel it would be the absolute sweet spot in terms of quantity and quality. In theory 3x magnification would provide best results with a f/ratio of 21 but in reality those conditions are so rare that it's not worth chasing.
There was a little bouncing which can be seen in the frames below but still very good.
Quote:
Originally Posted by etill
That's awesome, I did 10,000 frames several times over near the same time with an IMX290 (not the zwo though) and stacked the best 10% and it's not even close. I used my 200mm F/4 with a 5 x ES focal extender so probably a little too far.
When you say LRGB, what filters are you using and how are you capturing?
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Thanks Elliot. Here's a pic to give you an idea of the session. I hope it explains things enough. Filters are ebay specials I got a couple of years ago. I can't remember the price but they were very cheap. $20 each or something crazy like that. Hopefully one day I can get a set of Chromas.