Saturday, 2 February 2013

AR11665

AR11665 colour by Mark Townley
AR11665 colour, a photo by Mark Townley on Flickr.

This active region has been cracking with flares over the course of today, and looks like it will show more activity in the coming days. Taken with the 127mm @ 1900mm fl with a DMK31.

Detatched Prom - 2nd January

detatched prom by Mark Townley
detatched prom, a photo by Mark Townley on Flickr.

For all of saturday a large detatched prom hovvered above the surface of the sun. It had a very low surface brightness making it difficult to photograph, but using the 127mm I got an image that was just about passable!

Hedgerow Prom - 2nd January

prom by Mark Townley
prom, a photo by Mark Townley on Flickr.

Taken with the 127mm scope this really was pushing the seeing conditions, but just about came out ok! 127mm @ 1900mm fl DMK31.

Single Stack Full Disk - 2nd February

ss70 full disk colour by Mark Townley
ss70 full disk colour, a photo by Mark Townley on Flickr.

It is interesting to compare the disks from the single stack and double stacked scope. Despite less constrast, there is condiderably more resolution with the SS compared to the DS. The other obvious difference is image scale - the SS disks are nearly 3x the size of the those that come from the DS.

Double Stack Full Disk - 2nd February

ds40 full disk colour by Mark Townley
ds40 full disk colour, a photo by Mark Townley on Flickr.

My first full disk mosaic of 2013 using the DS40 @ f16 with the DMK31. I wondered now I have the SS70 whether this scope would still be useful, but, depsite the smaller aperture of this double stack it still pulls out more features than the single stack scope. Quite low activity levels today but plenty to see with this scope!

CaK-tastic Sun - 2nd February

cak 70 full disk colour by Mark Townley
cak 70 full disk colour, a photo by Mark Townley on Flickr.

Despite the clear blue skies the seeing conditions were terrible in the unstable northerly airflow. I didn't think this image would come out, but it has! This was taken with the 70mm @ f12 and DMK31 using my CaK stack. I used a peice of KG5 in the optical train today which seems to have cut back on some of the bloomimng in the raw frame, next time I will try an ITF to see what impact this has.

White Light Full Disk - 2nd February

wl70 full disk colour by Mark Townley
wl70 full disk colour, a photo by Mark Townley on Flickr.

My first white light full disk of 2013 - this was taken with the 70mm @ f12 with the DMK31, I used the Lunt solar wedge and a Baader D-ERF as filter to try and tame the poor seeing back a bit. I'm not sure I like my pale yellow white lights, may have to explore a new colour for these as the year progresses...