Swansea Astronomical Society Blog

Tuesday, May 4, 2010

 

Active regions breaking out all over the Sun

After a couple of spotless weeks the Sun is breaking out in small spots in both hemispheres.

I imaged the Sun in Ca K-line light with a PST solar scope and a DMK21 camera at the prime focus. There were five or six active regions , with at least three showing tiny spots:

Click on any of the images to see a larger version.

Using a short nosepiece and a x2 Barlow lens assembly on the front of the camera the sun was imaged at a greater image scale to concentrate on two sunspot groups:

The same region was imaged in H-alpha light with a PST and the DMK21 and the Barlow lens assembly:

A very hot, bright area of plage can be seen.

We have already had more days with sunspots this year than in the whole of 2009.

Steve Wainwright




 

Last Night's Images

Here are a few images from last night.
 
They were all taken through an 11" Celestron telescope, the shot of Venus was with a DMK31 camera and a 2.5x barlow and Saturn a DBK21 camera with a 2.5x barlow. Unfortunately the seeing conditions were quite poor last night.
 
The deep sky images were taken with a Nikon D700 digital camera at prime focus through the telescope.
 
Keith Davies

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