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.
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.
Astronomy filters are used to eliminate unwanted light and bring out fine details of an object, be it planetary, lunar of deep space. Every object has a filter to best enhance observations.
Tired of watching everything in reverse? Need a different angle from your focuser? Try a 45° erecting prism which will correctly orientate the image.
Using an Afocal Adaptor to connect your digital camera to your telescope and use an eyepiece for increased magnification.
A T-Mount adapter is essential if you wish to connect your DSLR camera to a telescope.
Accurate collimation is vital for image quality in Newtonian optics, and this laser collimator makes the job so easy.
SkyWatcher Auto Focuser adds dual speed motor control to the standard 2" rack and pinion focuser making the small adjustments needed to obtain perfect focus much easier.
SkyWatcher night vision torch features red LEDs allowing you to see in the dark without disrupting your night vision. A must for everyone who has fallen over in the dark!
The standard red dot finder scope that comes with most Skywatcher telescopes.