Secrets of the Deep Sky
A new open-source application lets professional and amateur astronomers explore space from their We've been fascinated by astronomy since the ancient Chinese first charted the skies. The computerization of astronomy, some would argue, is its greatest leap forward yet. Today, unattended robotic telescopes scan skies that have been charted over centuries, recording their findings in modern databases. CCD cameras capture images impossible to define on film. It's an exciting time to be an astronomer, whether amateur or professional. The revolution in astronomy doesn't stop at the hardware. Research-grade telescopes in observatories from Spain to Korea are under the control of open-source software and Linux-based computers. Under the open-source model, scientists are free to modify the control software, creating a trickle-down effect that benefits amateurs. Open source and Linux even have changed the scientific method. With source code freely available, peer review now occurs not only on...
You pounded out a deck of these goofy computer cards on the card-punch machine, dropped them into the card hopper of one of the typewriter gadgets, and watched in awe as the typewriter danced its little golf ball over the green bar paper, printing out your inevitable list of error messages. It was fun. I got straight A's. I even kept the first program I ever wrote that did something useful a little deck of cards that generated a table of parabolic correction factors for hand-figuring telescope mirrors, astronomy being my passion at the time. (I still have the card deck, though the gummy mess left behind by disintegrating rubber bands would not be healthy for a card reader, assuming that one still exists.)
If you're into astronomy, or have a romantic streak, you might be interested in Lunar Clock, which adds a moon phase indicator to the panel. To install it, use Synaptic to search for and install glunarclock. Once it's installed, right-click a blank spot on the panel where you want the applet to appear, select Add to panel, and then select Lunar Clock from the list.
Assume there is a 60-node compute cluster at a university, shared by three departments astronomy, math, and physics. Each department contributed the funds for 20 nodes. Each group of 20 nodes would define its own Rank expression. The astronomy department's settings, for example, would be Rank Department Astronomy user in astronomy submitted 20 jobs, 20 of the physicist's jobs would be preempted, and each group would get 20 machines out of the cluster. If all of the astronomy department's jobs completed, the astronomy nodes would go back to serving math and physics jobs. The astronomy nodes would continue to run math or physics jobs until either some astronomy jobs were submitted, or all the jobs in the system completed.
To some readers, a programming environment means a graphical, point-and-click integrated development environment (IDE) like that provided by Borland's Kylix or IBM's Visual Age. Yet another way to approach the subject is to look at Linux's development support for certain academic and computing subjects, such as graphics, databases, mathematics, engineering, chemistry, text processing, physics, biology, astronomy, networking, and parallel computing.
The open-source revolution in astronomy is largely thanks to Talon, the GPL package that handles tracking, scheduled operations, environmental monitoring, dome control and even image analysis. Our author Tony Steidler-Dennison has set up Talon-based telescopes at staffed and automated locations around the world.
To some readers, a programming environment means a graphical, point-and-click integrated development environment (IDE) such as that provided by ActiveState Komodo or IBM's Eclipse. Yet another way to approach the subject is to look at Linux's development support for certain academic and computing subjects, such as graphics, databases, mathematics, engineering, chemistry, text processing, physics, biology, astronomy, networking, and parallel computing.
Through this ebook, you are going to learn what you will need to know all about the telescopes that can provide a fun and rewarding hobby for you and your family!