Solar Prominence Photography
Jim Ferreira, Livermore CA   bakerst@comcast.net

100mm aperture energy rejection filter on 102mm f/7 ED refractor, effective focal length with 4X telecentric, 2800mm, f/28.
Filter: Daystar ION 0.8 angstrom H-alpha
Camera: Imaging Source DMK21, monochrome, 640x480 video, 5.6u square pixels, 0.41 arc seconds / pixel, 4.4' x 3.3' FOV.
With 0.5X focal reducer, 8.8'x6.6' FOV, 0.83"/pixel
AVI videos processed with RegiStax 5 and Photo Shop 5.0.





Polar crown quiescent prominence developing plasma bubble and plume, 35 minute time-lapse, 1.5 minute cadence
Seeing was poor resulting in postage stamp size final images making up the animation.  15 Aug. 2011

Quiescent prominence, Daystar ION 0.8A

Evolution of quiescent solar prominence over 4 days
See time-lapse animation showing bubble and plumes in above prominence at:
http://www.lafterhall.com/solar_prominence_bubbles_plumes_28aug2011.html

Quiescent solar prominence, H-alpha wings, dopplergram

Activated solar prominence

Activated quiescent prominence still behind the northeast limb.  Though seeing was sporadic, much back
streaming could be followed, along with large spicules and surge prominences along the foreground limb.
Farther down the page is the same prominence 24 hours later.

Activated quiescent solar prominence, Daystar ION 0.8A H-alpha filter

This is the same activated prominence on the northeast limb as 02 Sept.,  24 hours later.  Solar rotation has moved it fully onto the limb and it now stands 50,000 km high.
Some prominence material has already been thrown off, and within 8 hour the remaining prominence will lift off, scattering southward (to left).


Massive surge prominence in AR11280 along western limb.  Seeing was sporadic, but in those moments of good seeing, fine structure was well resolved.


Sunspot group in AR11289.  The 0.8A Daystar filter is intended pretty exclusively for solar prominence
photography, however, these photos demonstrate that chromospheric features on the disk can be imaged as well.



Post solar flare loops.

Post Flare Loops

Post solar flare loops, dopplergram

AR11302 sunspots and flare

Solar flare and surge in AR11302


Massive, long lasting quiescent prominence along the SE limb, 12 Nov. 2011.  Seeing was poor due to rainy skies, but didn't want to miss a chance to see this prominence first hand.


Activated solar prominence, equatorial eastern limb


Eruptive prominence obscures quiescent prominence along the eastern limb, 31 December 2011


  Arching eruptive solar prominence that appears to be associated with a limb flare on the eastern limb.


Coronal Rain on western limb.  Remnants of a large filament that lifted off several days earlier, now a good deal of the ejected plasma is cooling and returning to the chromosphere.
Note the various small bright knots of plasma rapidly descending.  Image time frame: 19:21-19:51  14 Jan. 2012 UT


Post flare loops following X1.8 class solar flare in outgoing AR11402, northwestern limb, 27 Jan. 2012  19:24-19:52 UT
Typical winter seeing conditions, but with brief moments of smoother air.  Shot with new DMK21AU618 USB2 video camera.
Improved sensitivity at 6563A allowed higher shutter speed @ 60fps helping resolve and capture finer structure in the loops despite poor seeing. 


Ellerman Bombs around sunspot in AR11410 and in emerging flux region in AR11413, Daystar ION filter


Very active quiescent solar prominence along eastern limb, 19 Feb. 2012


Small flare on edge of emerging flux region (EFR) produces small surge prominence and erupting filaments, AR11422, 19 Feb. 2012


Ellerman Bombs in AR11429 and neighboring Emerging Flux Region, -0.5 Angstrom blue wing H-alpha filtergram


Vertical jet-like structure in AR11429 spot cluster, 03 March 2012.  The jets are likely bright surges with the small sub-flares producing them clearly visible at  their bases.
AR11429 was putting on a show before even rounding the eastern limb into view with an X-class flare.  Since then there have been daily flaring associated with the
spots and plage, C, M and X class flares.


Polar crown quiescent prominence, southeastern limb, 11 March 2012


Post flare loops as absorption features over AR11429 1.5 hours after M8.4 class solar flare - remnant of southern flare ribbon can still be seen.


Active region filament over spotless AR11451