Tuesday, May 17, 2016

Backing up virtual machines and fat32

Couldn't backup a 100GB virtual machine image to a truecrypt encrypted external drive because the drive was formatted Fat32. Turned out you can convert it to NTFS while mounted without losing data:
Accessories > right click on Command prompt
>convert x: /fs:ntfs

After that a normal copy to the external drive worked fine. No data loss!

Wednesday, March 30, 2016

Testing... Testing...

This is a test with a link to [NASA HTTP://www.NASA.gov].

Thursday, September 03, 2015

Astronomy routines for MATLAB (and Octave?)

Over the last few years I've become a big fan of Matlab and its free, open-source, twin Octave so I was pleased to discover at least some professional Astronomers use it. The Astronomy & Astrophysics package for Matlab (Ofek 2014, see also http://ascl.net/1407.005) contains just under a thousand Matlab functions, including catalog access and ds9-interaction.

Hat tip: The Astrophysics Source Code Library.

Monday, July 13, 2015

Only a million miles to Pluto & Charon

True color image of Charon (left) and Plut (right), taken July 09 2015. Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute
In just over 21 hours, at 11:49:57 UTC on Tuesday 14th of July 2015, New Horizons will at it closet to Pluto. New Horizons is still roughly 1.1 million miles away from the point of closest approach but its moving at 13.8 kilometers per second with respect to Pluto (That is 14.5 km/s with respect to the Sun, or ~31,000 mph and 32,400 mph respectively).
Surface features on Pluto. July 12 2015. Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute

But already the views of Pluto and Charon are amazing, all the more so because they're just so different.
Surface features on Charon. July 12 2015. Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute
 For the latest from New Horizons, visit their JHU/APL webpage: http://pluto.jhuapl.edu/index.php