The Wizard over 2 years.


Posted by Dan Kearl on Tue Jun 18, 2024 6:15 pm

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One of the benefits of Astrophotography is that the universe changes very slowly and if you are careful about orientation, you can stack images for years.
This is 15 hours of images I took in 2022 combined with 10 hours I took last week.
2 different telescopes but same camera.
NGC 7380, the Wizard in Cepheus, a young star cluster ionizing a 20 light year long area of surrounding gases.
I created a luminance channel and combined Ha and Oiii channels to create this HOO palette in Pixinsight.
Click on image for better view.

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by Cynthia Crawford on Tue Jun 18, 2024 6:52 pm
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Your images just keep getting more and more spectacular! I love the explanation of the time line. This is fantastic!
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by John Labrenz on Wed Jun 19, 2024 12:59 am
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The fact that you can stack images from years ago is amazing...and you are correct...the change in that short (astro) time span is insignificant.
Another super image!
 

by david fletcher on Wed Jun 19, 2024 2:31 am
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John Labrenz wrote: The fact that you can stack images from years ago is amazing...and you are correct...the change in that short (astro) time span is insignificant.
Another super image!
+1.  Amazing image Dan and a reflection of how the universe measures time.
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by E.J. Peiker on Wed Jun 19, 2024 1:39 pm
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A great point and also super cool photo.
 

by Axel Hildebrandt on Wed Jun 19, 2024 1:47 pm
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What a great-looking area and thanks for the explanation, Dan. When seeing those images, it's hard to imagine that it changes so slowly.
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