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      Datasets

      Mark Johnston
      5 credits

      Sun May 26 2026

      H
      1m
      • Telescope
        ............................................................................................................................
        T-22
      • Field of View
        ............................................................................................................................
        8.71 x 5.47 arcmin
      • Location
        ............................................................................................................................
        United States of America
      • Transient Event
        ............................................................................................................................
        Yes
      Mark Johnston
      7 credits

      Surge prominence with spray April 9 2026

      H
      4m
      • Telescope
        ............................................................................................................................
        T-22
      • Field of View
        ............................................................................................................................
        8.71 x 5.47 arcmin
      • Location
        ............................................................................................................................
        United States of America
      • Transient Event
        ............................................................................................................................
        Yes
      Mark Johnston
      7 credits

      Three Calcium-K solar images March 27 2026

      C
      11m
      • Telescope
        ............................................................................................................................
        T-22
      • Field of View
        ............................................................................................................................
        8.71 x 5.47 arcmin
      • Location
        ............................................................................................................................
        United States of America
      • Transient Event
        ............................................................................................................................
        Yes
      Mark Johnston
      7 credits

      Hedgerow prominence March 13 2026

      H
      3m
      • Telescope
        ............................................................................................................................
        T-22
      • Field of View
        ............................................................................................................................
        8.71 x 5.47 arcmin
      • Location
        ............................................................................................................................
        United States of America
      • Transient Event
        ............................................................................................................................
        Yes
      Mark Johnston
      5 credits

      M-class flare Jan 19 2026

      H
      5m
      • Telescope
        ............................................................................................................................
        T-22
      • Field of View
        ............................................................................................................................
        8.71 x 5.47 arcmin
      • Location
        ............................................................................................................................
        United States of America
      • Transient Event
        ............................................................................................................................
        Yes
      Mark Johnston
      10 credits

      4 pack of limb prominences Feb 14 2026

      H
      30m
      • Telescope
        ............................................................................................................................
        T-22
      • Field of View
        ............................................................................................................................
        8.71 x 5.47 arcmin
      • Location
        ............................................................................................................................
        United States of America
      • Transient Event
        ............................................................................................................................
        Yes
      Mark Johnston
      10 credits

      3 photo set of prominences on the limb Feb 1 2026

      H
      7m
      • Telescope
        ............................................................................................................................
        T-22
      • Field of View
        ............................................................................................................................
        8.71 x 5.47 arcmin
      • Location
        ............................................................................................................................
        United States of America
      • Transient Event
        ............................................................................................................................
        Yes
      Mark Johnston
      5 credits

      Solar prominence Jan 20 2026

      H
      6m
      • Telescope
        ............................................................................................................................
        T-22
      • Field of View
        ............................................................................................................................
        8.71 x 5.47 arcmin
      • Location
        ............................................................................................................................
        United States of America
      • Transient Event
        ............................................................................................................................
        Yes
      Mark Johnston
      6 credits

      Solar prominences and limb detail Nov 25 2025

      H
      4m
      • Telescope
        ............................................................................................................................
        T-22
      • Field of View
        ............................................................................................................................
        8.71 x 5.47 arcmin
      • Location
        ............................................................................................................................
        United States of America
      • Transient Event
        ............................................................................................................................
        Yes
      Mark Johnston
      6 credits

      Large prominence with spicules Nov 25 2025

      H
      3m
      • Telescope
        ............................................................................................................................
        T-22
      • Field of View
        ............................................................................................................................
        8.71 x 5.47 arcmin
      • Location
        ............................................................................................................................
        United States of America
      • Transient Event
        ............................................................................................................................
        Yes
      Mark Johnston
      12 credits

      AR4274 sunspot region Nov 11 2025

      H
      8m
      • Telescope
        ............................................................................................................................
        T-22
      • Field of View
        ............................................................................................................................
        8.71 x 5.47 arcmin
      • Location
        ............................................................................................................................
        United States of America
      • Transient Event
        ............................................................................................................................
        Yes
      Mark Johnston
      7 credits

      Two panel photomerge large solar prominence 091225

      H
      30m
      • Telescope
        ............................................................................................................................
        T-22
      • Field of View
        ............................................................................................................................
        8.71 x 5.47 arcmin
      • Location
        ............................................................................................................................
        United States of America
      • Transient Event
        ............................................................................................................................
        Yes