Astronomy

Astronomy is an infinitely captivating subject and the oldest of the natural sciences. It is one of the few areas of science that amateurs can assist professionals and directly contribute to science. Astronomy is the scientific study of the contents of entire Universe, stars, planets, comets, asteroids, galaxies, and space and time, as well as its history. If you're starting out in Astronomy and looking at the sky at night, the contents of this site will guide you through what you can see at night as well as equipment advice, observation tips and tutorials. The astronomy articles cover the types of objects you can see and illustrate some basic astronomy concepts which are important to learn. You can also find several astronomy DIY projects which you can build yourself.

Telescope Calculator

This Telescope Calculator will help you find optimum magnification, field of view of a given eyepiece and limiting magnitude.
- 2nd Jun, 2010

Cosmic Scale Factor and Expansion of the Universe

Cosmic Scale Factor is a function of time which is relative to the expansion of the universe. We take a look at expansion of the universe.
- 19th May, 2009

What is the Cosmic Microwave Background Radiation?

This article looks at what Cosmic Microwave Background Radiation is, how it was detected and why it is important for cosmology.
- 19th May, 2009

Hubble's Best Images: A Top 10

In this article, we will look at some of the best images Hubble has produced since it's launch in 1990 and what they mean for astronomers.
- 12th May, 2009

Types of Nebula and Nebulae

A Nebula is a mixture of interstellar dust, hydrogen gas, helium gas and plasma. The name comes from the Latin meaning cloud.
- 8th May, 2009

Binary Stars and Double Stars

Binary Stars and Double Stars are star systems consisting of two stars orbiting around their common centre of mass.
- 8th May, 2009

How To Make and Use a Hartmann Mask

The Hartmann mask and Scheiner Disk are simple devices for making focusing a lens easier, especially a telescope.
- 3rd May, 2009

How To Build a DIY Solar Filter

How to build a DIY solar filter using a simple construction method which allows the filter to be fitted over the front of a camera lens.
- 1st May, 2009

How To Reduce Light Pollution in Photoshop

How to effectively reduce light pollution and orange gradients in Photoshop using a few basic filters and layer adjustments.
- 1st May, 2009

How To Align and Stack Images in Photoshop

Align and Stack images in Photoshop or similar graphics package, allows multiple photos to be combined to improve signal and reduce noise.
- 1st May, 2009