Observation by John Arnold: White light and H-alpha views of AR3315 ...

Uploaded by

John Arnold

Observer

John Arnold

Observed

2023 May 27 - 09:00

Uploaded

2023 May 29 - 16:56

Objects

The Sun

Equipment

upper: Baader photo-grade solar film, Skywatcher 150 Mak, ASI178MM with Baader Solar Continuum filter
lower: Lunt Ls50THa using eyepiece projection and ASI178MM camera

Exposure

upper: exp.time 0.168 msec, best 100 frames from 5000-frame video of 75 sec duration/Lower: exp. 0.69 msec. best 1500 frames from 20,000-frame video of duration 200 sec.

Location

Suburban North Leeds

Target name

Sunspot groups AR3315 and AR3310

Title

White light and H-alpha views of AR3315 and AR3310

About this image

Upper, white light image at 0900 UT. Lower H-alpha at 1356 UT on 27 May. Compare and contrast the two sunspot groups; fresh, complex and active AR3315 on the left with the large, simple and quiet AR3310 on the right.

Files associated with this observation

2023-05-27 white light and Ha comparison Ar3315 3310 compressed .jpg (1.4 MB)

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