Observation by Mr John William Hughes: Close up of AR13006

Uploaded by

Mr John William Hughes

Observer

Mr John William Hughes

Observed

2022 May 09 - 09:13

Uploaded

2022 May 10 - 19:01

Objects

The Sun

Equipment
  • Lunt 60mm DS THa/B1200CPT
  • ZWO ASI174MM
  • TeleVue x5 Powermate
Exposure

Exposure 9 ms, Gain 189

Location

North Essex, UK

Target name

Close up of AR13006

Title

Close up of AR13006

About this image

With 60mm aperture and using 5x magnification with the Powermate, oversampling of the image is inevitable. At this magnification exposure time would need to be quite high to produce a 70% full histogram. Instead I binned the image 2x2 and whilst this reduced the size of the overall capture it did allow me a sensible exposure time of 9 ms at unity gain of 189. Overall 2,000 frames were capture at 110 fps and the best 10% stacked to produce this image.

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