Observation by John Arnold: AR3664 as seen 2 days apart

Uploaded by

John Arnold

Observer

John Arnold

Observed

2024 May 09 - 13:10

Uploaded

2024 May 22 - 10:57

Objects

The Sun

Equipment
  • Skywatcher 102 f/5 refractor, Lunt Herschel wedge, x3 barlow, Baader solar continuum filter (10 nm version), ASI178MM camera
Exposure

exp. time 0.55 msec, stacks of best 200 of around 15,000 video frames

Location

Suburban North Leeds

Target name

Sunspot group AR3664

Title

AR3664 as seen 2 days apart

About this image

AR3664 as seen two days apart (9th and 11th of May). Cloud cover prevented anything on May 10. By the 11th the sunspot group was rather foreshortened, as it approached the solar limb. Accordingly, the lower image has been stretched longitudinally to try and match the view from two days before. 

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