Here is the
full disk white light view, taken with the 80mm f/6. I used the
Custom Scientific G filter for all white light images. Three
obvious close up opportunities exist here. First, both AR1374
and especially AR1363 are on the limb, which always provides
good dramatic imaging opportunities. In the very center, AR1372
which is really falling apart is in the area of maximum granulation,
so might provide a good high resolution spot with a very fine
Here Ive removed
the labels so you can see the full disk in all its wondrous beauty!
Below we see
AR1374, an unusual shaped group which is starting to fragment.
Several pores are visible around the main group as well.
Here is the
dramatic limb shot of AR1363. The white web work of faculae will
provide an excellent target for the Calcium images!
is a small group with lots of tiny pores trailing behind it.
Here is AR1372,
a tiny disrupted group in the center of the Sun. This is the
best place to shoot to see how well you can record the solar
granulation which averages 1.5 arc seconds in size for each cell.
That is the theoretical limit for my 80mm! But with the G filter,
I have the best chance to record this fine detail. Seeing is
good, but not the best.
Calcium K full
disk. The faculae at this wavelength form networks of fine filaments
all over the disk. They represent areas of increased activity
of magnetic fields. Often, and area with lots of magnetic activity
will be host to new sunspots.
Here Ive mapped
the areas out that the close ups will cover. All calcium images
are with the SV80 and a Cak filter.
close ups. Im very impressed with the level of quality and fine
image sharpness across the field with our brand new Televue 2.5x
Powermate. Here is AR1363 on the limb.
AR1374 is a
hot bed of calcium activity. And although the seeing is much
worse in UV wavelengths, you can make out the calcium granulation
on the right side starting to resolve.
AR1375 is different,
it trails calcium faculae. (flocculi in some texts)
AR1366 is the
major spot here, the other small one on the limb is nameless...
loop prom on the limb. it appears very different in Halpha, and
the comparison is very interesting!
Alpha images with the Lunt LS100.
AR1374 on the
limb, with some very fine spicule activity and fine arcing prom
loops on the edge as well.
shows a complex magnetic field.
on southern limb. Notice that in all of my close ups, I always
try to keep the exposures such that the spicules, right down
to their bases are never over exposed, and fine grass like details
can be seen clearly. Where the limb starts here, is the actual
base of the spicules.
prom, the same one as in the Calcium shot several images above.
There is some incredible detail in this prom!
December 10th, I compare side by side the arch prominence, on
the left is Calcium K light, and on the right Hydrogen Alpha.
Here is the
full solar disk one day later. A small white patch of faculae
is coming onto the limb on the left eastern edge.
Full Disk view
with the Lunt, and the Antares .5x focal reducer.
I liked this
field because of the nice filament here, and the fine swirls
in the magnetic field around the sunspot.
This was the
most stunning shot I got of the limb all weekend. Here an eruptive
prominence juts out from the edge of the sun. Also some beautiful
loops of very fine structure are present. On top of that, a big
fat filament that is partially transparent is on the disk.
area on the suns limb.
Here is AR1374
again, a day later.
Now I present
to you a collection of limb shots to highlight prominences for
this Sunday, December 11th. Ive darkened the disk so you are
not distracted by the disk features, and the fine details on
the limb can be seen clearly.
This one appears
to be ejecting a small plasma cloud.
A very peculiar
shape for this prom.
Our very nice
hedgerow prom on the southern limb is progressing well.
I hope you enjoyed
this weeks solar activity as much as we did! feel free to write
us with your comments.