Plasma Dancing on the Southwestern Limb

2011 06 30, 1435 UT
Solar h-alpha, SW prominence

PCW Memorial Observatory, Ohio USA – Erika Rix (
Temp: 24.2°C, Humidity 62%, cirrus
S: Wilson 4.5, T: 1/6-3/6, Alt: 38.3 deg, Az: 090.4 deg
DS 60mm Maxscope, LXD75, 21-7mm Zhumell, 57.14x

Sketches created scope-side with black Strathmore Artagain paper, white Conte’ crayon and pencil, Derwent charcoal pencil, black oil pencil

At first glance, this SW prominence only showed a clear view of its northern leading edge and part of its upper arch. To the south, there was a very bright, segmented area of prominence. Transparency was very poor, but on moments of clearing up, I was able to bump up the magnification to show the very light detailed structure of plasma holding it all together. Then yet further to the south, a tall slender area of prominence forked at the tip and its filament reached into the solar disk in three areas, with the northern one being the longest. Again, I could see faint structures of prominence reaching southward from the segmented prominence.

6 thoughts on “Plasma Dancing on the Southwestern Limb”

  1. Love your work, Erika!

    It is sensational how you not only lay down the prominences that rise over the limb, shooting out into space, but also the faint tendrils of those that are still over the disk of the sun. Like whispy smoke rising in front of a fireplace. Marvelous stuff.

    Alex M.

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