Geelong Region Weather Map

Welcome to Bill D's corner of the net

This website will cover some of my hobbies.  I have been into 3D modelling and rendering, attempted to fly radio controlled helicopters, and even played around with robotics. Nowadays I am into Astro Photography. As it turns out this is my most expensive hobby yet. Having said that I enjoy it alot as it is also one of the most challenging. 

Home Solar Observing Solar Jan 25 2010 - Active Region 11041
Jan 25 2010 - Active Region 11041
Jan 25 2010 - Active Region 11041 PDF Print E-mail
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Solar Imaging - Solar
Thursday, 28 January 2010 06:11

Here are a couple of more images. of the sun taken on the 25th of January 2010. I have been experimenting with different exposures and techniques.

The full disk image is a single exposure using the QHY8 colour camera. It is deliberately overexposed to reveal the solar prominences around the edges and show an interesting side affect. A Ha image should be red only (like the outer part of the image), but when you overexpose to a massive degree, a small amount of light leaks into the green and blue channels, giving the image nice yellow colour on the core while the less bright regions remain pure red. I kinda like the affect. 

The second image is a close up of the active region 11041. This is a stack of the best of 200 frames taken with a DMK41 mono camera during quite bad seeing. 

 

Sun2010SingleExposure AR11041

  

 

Last Updated ( Thursday, 25 March 2010 19:48 )