TAWBAS star party

The Sun in a Different Light by Brian Colville

Photo of the Week for May 2, 2014

The Sun in a Different Light by Brian ColvilleSpecialized solar filters can reveal different details upon the face of the Sun. A typical white-light solar filter can show any sunspots that are visible. A Calcium filter, (the blue image) allows magnetic structure to be imaged. The image on the right was taken using a hydrogen-alpha filter that shows prominences and other surface features.

Brian Colville used two different telescopes to capture these images on the morning of March 21 from his observatory in Cambray, Ontario. The Calcium image was taken through an Istar Optical 150mm f/8 achromatic refractor using a 0.5× telescompresser and a Lunt Solar Systems B1800CaK filter. The hydrogen-alpha photo is a two-frame composite made with a Lunt LS80/B1200Hα solar scope. Both solar shots were recorded with a Point Grey Grasshopper Express camera equipped with an ICX674 chip.

Photo of the Week Contest

Do you have a superb night-sky photo that you think might be Photo of the Week material? Click here to find out how to send your photo submission to us.

See More Photos of the Week

Categories: Photo of the Week
iOptron CEM120 and CEM120EC
Celestron Advanced VX Computerized Telescopes
Khan Scope
Ontario Telescope Pegasus Astro Ultimate Powerbox
Give the Gift of SkyNews