Observational Astronomy looks at the the more practical aspects of astronomy, including the basics of astronomical telescopes and instruments, observation tips, photography and imaging, how to guides and tutorials and a guide to the nights sky. You will also find information and news about the various space telescopes such as Hubble and Spitzer.
In order to gaze successfully around the starry skies, you need to take into account a very important factor to do with your eyes. This is called dark adaptation. Read on and get some tips on how to make this process quicker and easier.
This article will show you a few methods for polar alignment of an equatorial (EQ) mount, how to use the drift method for alignment without Polaris and how to use setting circles. The article was written using a Skywatcher HEQ5 mount, but the technique should be the same for all equatorial mounts.
What's the optimum magnification for my instrument? Is the field of view of a given eyepiece too small to see all of the Moon? Is there a minimum magnification for my scope? What sort of limiting magnitude should I expect with an instrument of a given aperture? You can find answers to all these questions and many more besides with this interactive telescope calculator.
On Monday, May 11th, Space Shuttle Atlantis with its seven-member crew launched from NASA's Kennedy Space Center on the final Hubble Space Telescope servicing mission. In this article, we will look at some of the best images that Hubble has produced since it's launch in 1990 and what they mean for astronomers.