Observation by John Arnold: 6 minutes with AR3664 in H-alpha

Uploaded by

John Arnold

Observer

John Arnold

Observed

2024 May 09 - 09:01

Uploaded

2024 May 23 - 14:15

Objects

The Sun

Equipment

Skywatcher 102 f/5 refractor, Daystar Quark chromosphere unit, 0.5x focal reducer, ASI178MM camera

Exposure

Exp. 0.08 msec, each image is stack of best 250 from 10,000-frame video

Location

Suburban North Leeds

Target name

Sunspot group AR3664

Title

6 minutes with AR3664 in H-alpha

About this image

Two images taken 6 minutes apart on 9th May. There is some field rotation evident, even over such a short interval, due to using an alt-az tracking mount (a Skywatcher AZ-GTi).

Files associated with this observation

AR3664 6 mins 0901-0907 on 090524.gif (1.9 MB)

Like this image

Gerard Cauchi

Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of work by third parties is expressly forbidden without the consent of the copyright holder. By submitting images to this online gallery, you grant the BAA permission to reproduce them in any of our publications.

Registered charity no. 210769
Registered company no. 117572

For more information including contact details, click here.

Our Terms of Use are here.

Our Privacy Policy is here.