Solar Astrophotography, Solar Prominence Photography, Time-lapse Solar Prominence Movies
Lunt LS50F Solar Prominences

Jim Ferreira, Livermore CA  bakerst@comcast.net




Surge prominences

Activated solar prominence and massive arching surge prominence

AR11261, doppler comparison, H-

Time-lapse animation of AR11260, approximately 50 minutes.

Quiescent solar prominence, h-alpha, dopplergram, Lunt LS50F
c
e, h-alp



Spray eruptive prominence time-lapse movie, solar astrophotography,  Lunt LS50F

Eruptive Prominence and activated prominence, 10 June 2011, solar astrophotography, Lunt LS50F

Spectacular surge and spray prominence activity along the north east limb, 27/28 May 2011



Flare loops in AR11195 time-lapse animation



Flare loop times-lapse animation.





Time-lapse movie of activated prominence over AR11178







Flares and surge prominences, lower corona and chromosphere pairs - region at north-east limb that eventually was designated AR11160


Massive solar prominence / filament

Solar prominence dopplergram, blue wing and red wing H-alpha

Very active prominence, considerable mixing obvious over a 45 minute period

2.0 Angstrom bandpass composite image of  solar prominence, blue wing, centerline and red wing H-alpha


Seeing conditions were not a favorable as there were 6 Dec. 2010, see below, but activity in the same southeast region is still very much evident.

Large quiescent prominence, H-alpha centerline, blue and red wing and prominence dopplergram

Prominence dopplergram made up from images shot in blue and red wing  H-alpha light

A very active, post eruption prominence from 06 Dec. 2010.  Above is the quiescent prominence over a one hour period in H-alpha center line light.
Below are H-alpha prominence dopplergrams made from blue and red wing images, approximately -1.0 and +1.0 Angstrom, respectively.
The dopplergrams clearly show extensive movement of plasma.  Velocities reach as much as 50km/sec, line of sight.

Prominence Dopplergram, Blue Wing, Red Wing, H-alpha centerline

Prominence Dopplergram, Blue Wing, Red Wing, H-alpha centerline

Prominence Dopplergram, Blue Wing, Red Wing, H-alpha centerlin

Small flares and surges in a prominence.

Coronal clouds, active prominence over AR11121, quiescent prominences.

Massive quiescent prominence on the western limb, 27 Oct. 2010

Massive quiescent solar prominence on the western limb, 27 Oct. 2010



Coronal  'bomb' sequence, western limb, interactive with outgoing AR11117 & AR11119


Time lapse coronal 'bomb' sequence




Quiescent prominences and surge prominence, development sequence, Lunt LS50F


Sequence development of quiescent prominence, Lunt LS50F

Doppler effect study of quiescent prominence, Lunt LS50F


Solar prominences / filaments passing over limb of Sun, Lunt LS50F


Quiescent prominence coming over eastern limb, Lunt LS50F

Active Prominence sequence, Lunt LS50F,

Surge prominences / sub flares, AR11106, Lunt LS50F

Flare and surge prominences

AR11101 and surge prominence, Lunt LS50F



A very active quiescent prominence, 12 frame sequence, 22 Aug. 2010
Lunt LS50F, Stellarvue SV102ED @ f/14, DMK21

Coronal rain, single condensation rapid decent, 21 Aug., 2010
Lunt LS50F, Stellarvue SV102ED @ f/14, DMK21

Arching and suspended active prominences along  NE and NW limbs.  The suspended prominence on NE limb stayed stationary for over 24 hours with little change.

Looping prominences over departing AR11093 and AR11099 along the north west limb, 17 August 2010 UT

Rapidly evolving surge prominences over a period of 12 minutes, 15 August UT



Lots of solar prominence activity, particularly the large and active prominence along the south east limb, 11 August 2010




A very sizable active solar prominence that persisted for several days in early August 2010

A sequence of images showing the development of the active prominences, August 4th through the 5th, 2010


The very rapid outburst of a small eruptive prominence - within minutes the outburst was over
Relatively high resolution close up views of the August 7th, 2010 active prominence - note the numerous sprays and surges



A very active sun - prominences shot with the 66mm f/6 refractor and DMK41 camera - occulting disk was added in post processing




Spectacular eruptive prominence on 29 July, 2010 - portions of the prominence reach a height of 1/3rd solar radius above the limb

29 July, 2010 eruptive prominence - sequence shows two separate regions lifting away from the limb - as the last of the plasma dissipated, bright points of light blinked on and off over periods of minutes

Dynamic Solar Observatory (DSO) video of the coronal mass ejection associated with the eruptive prominence images above.

DSO coronal mass ejection animated GIF (8 Mb)

Very active prominences showed significant structure change over a period of minutes

Prominence at left can be seen straddling the limb with anchor points on the visible chromosphere

Active solar prominence from 10 July 2010

Tenuous cloud prominence


Detached cloud prominence

Small solar flare and resulting surge prominence rising above the chromosphere, 6 frame sequence from 8 July 2010


Spectacular eruptive solar prominence from 19 June 2010


Sequence of images showing lift-off of solar prominence, 19 June 2010

Sequence of images of active quiescent prominence, 19 June 2010

A splendid, massive quiescent prominence, 17 June 2010

Quiscent solar prominence



Spectacular quiescent solar prominence, 6 frame sequence over 25 minute period, 5 June 2010

Eruptive solar prominence throws up towering column of plasma, 3 June 2010



Extended quiescent solar prominence viewed center line and blue wing H-alpha, 25 April 2010

Extended quiescent solar prominence, 29 April 2010

Quiescent solar prominence in the midst of numerous faint surge and spray prominences, 25 April 2010

A solar sub-flare just out of view over the limb sends up a sizable surge prominence, 7 frame sequence from 18 April 2010




Surge and spray prominences associated with developing active region along the solar limb, 13 February 2010









Equipment

WARNING!  The sun cannot be viewed with just any telescope or pair of binoculars.  WARNING!
Very special filters must be used on the telescope to avoid serious eye-damage, or, total loss of eye sight.



Lunt LS50F  SV102ED  DMK21







Lunt LS50F Hydrogen-alpha filter is used on a 4" ED refractor for close up viewing and imaging.  When attached to the 2.5" f/6 ED refractor the system becomes a pseudo prominence telescope, allowing me to image the entire solar disc.  A solar wedge system with green continuum filter is used with the 4" refractor for white light viewing and imaging.   DMK21 and DMK41 monochrome USB video cameras are used on the equipment pretty exclusively.  I seldom view through eyepieces, preferring the considerable flexibility of adjusting the view on the laptop monitor for exposure, gain and gamma. 



DMK21  DBK21  SV102ED  Losmandy GM8







 The entire system is carried on a Losmandy GM8 mount.  Note the small solar finder scope that uses a pinhole to project a tiny solar image on a translucent screen.












A roll around computer cart fitted with a dark cloth is used while viewing the laptop monitor.  The focusers on both scopes are easy to reach and adjust while still under the cloth.  I do need to stand up, though, to tune the H-alpha filter.  This is probably as close as I will come to having an observatory....








Two fans are used on the computer cart, one to help cool the laptop (out of view in this image), the other, the white tower, blows air on me.   I will shortly replace the black felt with a lighter weight, dull silver cover which will be opaque to sunlight, and be cooler to work under. 

With the telescope slow motion controls there at the laptop, and comfotably seated, I can spend extended periods of time viewing and imaging both the chromosphere and prominences with either scope, avoiding prolong skin exposure to direct sun.




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