Sun H-Alpha ASI290mm cooled version.

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watcheroftheskies
Posts: 3
Joined: Sun Jun 16, 2019 7:44 pm

Sun H-Alpha ASI290mm cooled version.

Post by watcheroftheskies » Thu Aug 01, 2019 12:18 pm

Hi'

Here's a quick first light using the ASI290mm using my Lunt H-Alpha OTA.
My old USB II ASI120mm used to give terrible Newton's rings but I was very pleasantly surprised to see that with my 290mm cooled version I don't get them.
Here's the first light result, sadly no proms or sun spots.

Keith
Attachments
Sun.jpg

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