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Community photo entitled The Sun in Calcium K by Anthony Faulkner on 01/25/2026 at Tucson, AZ.

The Sun in Calcium K

On 01/25/2026 12:45 pm by Anthony Faulkner | Tucson, AZ.

The sun in calcium K showing large magnetic fields.

Celestron AVX mount
Lunt 80mm with custom calcium K filter
ZWO ASI533 non-cooled camera

Autostakkert
IMPPG
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