Sun in CaK / White Light / Halpha
With ES AR152 - Six inch and PST
+ Lunt CaK filter and Baader Wedge
Uploaded 5/22/16

Daily Report

 These images highlight the unusually large marginally naked eye sunspot seen on the Sun the past week. The weather has been a mess lately, full of clouds and high wind all week long. This has made the seeing very bad, and I was able to at least get in a few this morning at the optimal time of around 9:30am and capture the days best, which was around 1.5 arc seconds in white light.

Below is the set up for today, the large white tube is the six inch mounted on the side of the black 10 inch. Piggy backed on the six is the PST, a small hydrogen alpha scope for general solar viewing. With a 40mm aperture, its quite small - but makes a great travel scope for solar viewing. This was the first time I tried some solar imaging with it using the DMK51 at prime focus.

Below is the configuration you need to use when adapting a small solar video imaging cam to the PST. The bottom spacer is removed and the camera can now reach focus fine. The DMK 51 gives a big wide field!

Images below are 1024 wide and non clickable


These are with the six inch, set up with a Baader Herschel wedge and 520nm Green Continuum filter. This is prime focus and shows the big spot sitting all by itself on the disk:

With the 5x Powermate, we get a good close view of the spot, despite the shaky seeing. The wind was blowing so hard, the whole instrument was bouncing violently back and forth during this set...

In calcium K light, the spot has a fantastic activity! Seeing is worst in near UV, so not quite as clear as the white light shot above.

The PST at prime focus. You see the spot on the left side here and some nice filaments across the disk.

The view of the proms with the overexposed disk blocked off is not quite so detailed, very few prominences are seen right now.

Instruments: Explore Scientific AR152, PST Platform: Astrophysics 1200 Camera: DMK 51 (1600 x 1200) Location: Payson, Arizona Elevation: 5150 ft. Sky: Seeing 2/5, Transparency 7/10 Outside Temperature: 55F Processing: Registax 6, Photoshop CS2 Solar Home Page HOME SCHMIDT GALAXIES EMISSION NEBS REFLECTION NEBS COMETS GLOBULARS OPEN CLUST PLANETARIES LINKS