Sun total disk in H-alpha high res

[Avdhoeven]

After experimenting last week with my Lunt 60 I decided to go for a more high-res disk image of the sun in H-alpha. This is a mosaic made of 6 images with my Lunt 60Tha with a Powermate 2,5x barlow and an ASI174mm. My laptop could hardly handle the data flow of the camera (12bit 1936x1216@66fps, 16Gb/min). This resulted in 6x60s movies that I stacked in Autostakkert and postprocessed using Astra-image 3 and Photoshop. Nice thing is that imaging in 12-bit makes it obsolete to take separate limb imagery. Everything is already present in one shot.

This cost me some time to process, but I'm so happy with the full-res image (https://www.flickr.com/photos/avdhoeven/52215721592/sizes/o/).

 

[Kon]

Stunning!

[maw lod qan]

Incredible!

[Pete Presland]

Very nicely captured, fine surface detail visible.