Astrophotography

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.

 

16th April 2014Astrophotography
The Moon illusion makes the Moon appear much larger when it is closer to the horizon. Find out why the moon is larger when its near the horizon.
20th January 2014Astrophotography
Find out how to photograph the Moon with your DSLR camera and a small telescope and capture amazing views of the Moon.
14th September 2013Astrophotography
How to get the most out of your first night observing with a telescope, including what to observe, when to observe, how to find things and which eyepieces to use.
2nd May 2013Astrophotography
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.
20th April 2013Astrophotography
What you need to know in order to take long exposures greater than 30 seconds with a Canon DSLR and "bulb" mode.
2nd May 2012Astrophotography
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.
2nd June 2010Astrophotography
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.
12th May 2009Astrophotography
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.