Sister blog of Physicists of the Caribbean. Shorter, more focused posts specialising in astronomy and data visualisation.

Sunday 2 November 2014

Hydrogen sky of Prague


I'm giving a public talk in a few weeks (anyone in Prague ? Come along to the astronomical institute !). Haven't really worked out what I'm going to say yet, but who cares, the important thing is that there will be pretty pictures...

The foreground image is a photo I took last year of St Nicholas Church in Old Town Square. The background image is a composite of LAB and GALFA HI survey data. The alignment of the HI data to the photo is only very approximate. For this image it doesn't really make much difference, the basic structures are similar across the whole sky.

(the good news is my earlier picture of the Magellanic Stream over Cardiff is probably accurate after all, FOV issues notwithstanding)

Honestly, for viewing the night sky, optical wavelengths suck.
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