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.
Subscribe to:
Post Comments (Atom)
Back from the grave ?
I'd thought that the controversy over NGC 1052-DF2 and DF4 was at least partly settled by now, but this paper would have you believe ot...
-
In the last batch of simulations, we dropped a long gas stream into the gravitational potential of a cluster to see if it would get torn...
-
Another day, another paper on how exciting Ultra Diffuse Galaxies are. At first, these large, faint galaxies were just wholly unexpected, a...
-
Of course you can prove a negative. In one sense this can be the easiest thing in the world : your theory predicts something which doesn...
Can´t believe...Must go there.
ReplyDelete