Sun in CaK / White Light / Methane and Mercury in the daytime With ES AR152 Refractor + Lunt CaK filter and Baader Wedge Uploaded 1/24/16
 A clear sky between winter fronts, but the seeing was quite unstable, lots of waves running across the solar disk. I did also try for mercury - small at 8 arc seconds and so near the sun that I was not able to keep the sunlight out of the tube on the 6 inch refractor causing all sorts of internal reflections and ghosts!
Images below are 1290 wide and non clickable


Lets start with the full disk, we can see only one major sunspot:

Now we insert the 2.5x barlow and pull the 4 inch stop off to make it a full six inches. The granulation is visible as a nice patterning in the background.

Here is another prime focus view, with the six inch using the Methane band filter deep into the IR. Contrast is much lower and the granlation nearly dissapears:

Now for some Calcium K shots. Calcium K is in the near UV. This is with the six inch stopped to four inches, and a 1.5x barlow in front of the filter elements. This makes it near f/15 and ideal for detailed close ups in calcium light. Here is the larger sunspot seen this way:

The other smaller sunspot was un interesting in white light. But in Cak, there is much to see!

And finally a shot of the planet Mercury, a small 8 arc secnds in size, but a tiny crescent. This is at prime focus with bad seeing and in the IR.

Instruments: Explore Scientific 6" f/6.5 Refractor Platform: Astrophysics 1200 Camera: DMK 51 Location: Payson, Arizona Elevation: 5150 ft. Sky: Seeing 2/5, Transparency 7/10 Outside Temperature: 35F Processing: Registax 6, Photoshop CS2 Solar Home Page HOME SCHMIDT GALAXIES EMISSION NEBS REFLECTION NEBS COMETS GLOBULARS OPEN CLUST PLANETARIES LINKS