Observation by John Arnold: Sunspot group AR4566 at four different w...

Uploaded by

John Arnold

Observer

John Arnold

Observed

2026 Nov 09 - 10:00

Uploaded

2026 Nov 10 - 17:47

Objects

The Sun

Equipment

Ha: Lunt 50 THa, eyepiece projection to give ca. f/16, ASI178MM camera/others: Skywatcher Evolux 82 refractor with Herschel wedge

Location

Leeds

Target name

Sunspot group AR4566

Title

Sunspot group AR4566 at four different wavelengths

About this image

Ca: Antlia 393 nm filter with 3 nm bandwidth. G-band: 2x barlow, Altair 430 nm filter with 2 nm bandwidth. Green: 2x barlow, Baader Solar continuum 540 nm filter, 10 nm bandwidth version.

Files associated with this observation

AR4566 at four wavelengths 2.jpg (2.2 MB)

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