Prof. Eric Bogatin
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The Difference Between Astronomy, Astrophysics and Cosmology

by Eric Bogatin | Feb 24, 2013 | Inspiration

Astronomy is the study of what you see in the sky and the dynamics of objects in space. I think of it as about what you can see when you observe the sky with your eyes or through a telescope. What I love about astronomy is that it is accessible to everyone. You walk...

Fixing a Reset Problem with my Celestron SCT C6 Telescope Hand Controller

by Eric Bogatin | Feb 24, 2013 | Astonishing Science News

I’ve had a recurring problem with my Celestron SCT C6 telescope since I received it in Feb, 2008. Every now and then, especially when I am slewing the scope, and more often in cold weather, the scope stops working and the hand controller resets to the power up state....

Essential Telescope Principles: The Real Meaning of Focal Length

by Eric Bogatin | Feb 24, 2013 | Astonishing Science News

This is part 1. The properties of telescopes are often presented in a confusing way. In fact, it is simple if you keep in mind what a telescope is really doing. Fundamentally, all objects being viewed in the sky are at infinity. In other words, all the light rays from...

Essential Principles of Telescopes: Field of View (FOV)

by Eric Bogatin | Feb 24, 2013 | Astonishing Science News

This is part 2. To read part 1, click here. The focal length of a mirror system is a direct measure of the translation of the angular size of an object to its spatial size on the image plane. In part 1 we saw that s = FL x a where s = spatial size of image on focal...

Summer Science Camp for Big Kids

by Eric Bogatin | Feb 24, 2013 | Astonishing Science News, Inspiration, Life 201

If you missed out on summer camp as a kid, as I did, it’s not too late. But this time, you don’t have to rough it. For the last few years, I’ve attended various star parties during the summer. These are gatherings of enthusiastic amateur astronomers (not all of whom...
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Recent Posts

  • The Universal Globe Spins in the Wrong Direction
  • A robust and cost effective strategy to manage my computer data files and backups
  • Field of View of our Canon 450D and Two Lenses
  • Field of View of our Canon 60Da and C925 Scope
  • Field of View of our Small Imaging Sensors

Recent Comments

  • david on I Remember Jim Williams, a Guru of the Analog Electronics World, as Much an Artist as Engineer

Archives

  • December 2016
  • July 2015
  • October 2014
  • March 2014
  • May 2013
  • February 2013
  • August 2011
  • June 2011
  • December 2009
  • April 2009

Categories

  • Astonishing Science News
  • Featured
  • Inspiration
  • Life 201
  • Shadow Engineer
  • What Works
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