Below: Our former
sunspot quad is now a few isolated spots on the western limb.
AR1389 is the dominant member of this former quad/trio, and is
sitting in a sea of faculae. AR1391 has evolved rapidly, and
is currently the most active spot on the Sun. You can just see
a new spot in this Saturday image just coming on to the eastern
Here is the
same disk without the labels for a natural appearance:
AR1389 on the
limb in a large area of faculae (white areas around the spots)
AR1391 has a
very complex appearance, with many small pores around it. It
has the potential to develop more.
AR1393 is degenerating fast:
AR1391 on the
eastern limb is accompanied by a stunning plage (white area)
and some structured filaments. These are with the Lunt LS100
AR1391 is far
more spectacular in Halpha. It is accompanied on the left by
a bright patch of plage, and closer to the limb some developing
filaments. Recall that filaments are simply proms seen on the
disk of the sun, rather than protruding from the edges.
has a spectacular magnetic field around it. Here, it appears
as a bar magnet with iron filings with the region between the
two spots being particularly active. A few small flares have
appeared this week in this group.
must now say a final good by to AR1389, the former sunspot quadruplet.
This was a very active region at first when it first appeared
on the disk 2 weeks ago, and made for some spectacular limb shots
with lots of faculae and small pores.
the western limb is this gorgeous mushroom shaped prominence.
A few eruptive like spicules can also be seen here, and the spot
is AR1389 as discussed above.
cropping the shot 50% - something I would never have done with
lesser cameras of past times, you can see the big prom like a
space ship cruising over the limb of the Sun might see. (With
the proper "Anaphasic Shielding" to protect it)
the weekend, things had changed quite a bit. The sun was more
quiet for sunspots but there were a few prom surprises to come.
start with prime focus, and a full disk shot with the Stellarvue
SV80s at f/6. While AR1396 appears to be the dominant feature,
the pair coming onto the disk on the eastern limb to the left
will be a very photogenic pair this week. They are very foreshortened
view without the labels for comparison:
& AR1402 coming onto the limb, with the 5x Televue Powermate,
Continuum Filter+IR blocker
is the "big" spot near the center of the disk. Seeing
was fading out at this point.
is a beautiful set of complex small spots and pores in a sea
on the limb may become a better group this week. we shall see.
Notice the whitish faculae around this group. Seeing was good
here, the granulation is very clear.
In the center of the disk is this obscure and tiny group in a
dense forest of granulation!
filaments, and a few bright patches of plage around sunspots.
But wait - whats going on at the 8:00 position?
dark patchy filament, and the two sunspots just barely seen coming
onto the eastern limb.
spectacular sunspot groups with the magnetic fields outlined
the mystery object - a eruptive flare in progress seen as a dark
detail against the disk of material spraying out of an active
region! (looks like a little brush to the left of center)
can be more clearly seen in the blue wing of Halpha, by detuning
the filter and showing the Doppler enhanced view
on the western Limb
limb proms with delicate details:
Limb proms forming a dim arch:
eastern limb proms.
for looking, more action to come next week...