What Does Focal Mean?
If you’re somebody who’s just gotten into the hobby of stargazing, then you’re probably struggling to grasp all of the jargon associated with telescopes. In this article, we explore one of them and describe what does focal mean. Some terminology can be incredibly difficult to wrap your head around. This seems especially so when you’re […]
What Is Eye Relief In Binoculars?
Do you spend a large amount of time looking through your binoculars? If you love looking at the night sky, bird watching, hunting, sightseeing, or hiking, you will likely spend more time looking through your binoculars than the average person! An important specification for binoculars is eye relief. So what is eye relief in binoculars? Read […]
What Is The Earliest Time In The Universe We Can Directly Observe?
When we look at telescopes, we only associate them with seeing objects from a distance. However, as telescopes work by collecting light through the diameter of the lens or mirror used, it can also be used to see further back in time. In this post we describe the earliest time in the universe we can […]
How To Find Total Magnification of a Telescope
The total magnification of a telescope is incredibly important to know. This is because it dictates how many celestial bodies you can see in the night sky at any time. Just as importantly, it governs how clearly you can observe them. When star-hopping or focusing on a single planet for long enough, we can quickly […]
Why Can’t We See Past The Cosmological Horizon?
The cosmological horizon is the distance from which any information can be retrieved. This is due to many different aspects of cosmology, like the expanding universe and how the galaxy developed after the Big Bang. Even though we would like to, we can’t see past the cosmological horizon. The cosmological horizon is the maximum distance […]
How To Use An Astrolabe
An astrolabe is a piece of astronomical equipment that dates back to Ancient Greece. You’ll find that it consists of discs and rulers that you can rotate to show the different positions of stars at any given time. Astrolabes where used for navigation before the sextant was invented. You can use an astrolabe to tell […]
What Is A Spectroscope Used For?
Spectroscopes are used to determine the chemical makeup of matter that emits light. It can also determine the chemical properties of gases that light may have interacted with. It is the prime tool of astronomers. If you love astronomy and are dying to know more about the composition of the sun and the stars, a […]
What Are The Two Most Important Properties Of A Telescope?
Telescopes are the best tools at your disposal when you want to look at celestial objects in detail. Of course, that isn’t the only thing they’re helpful for, as they can help photograph the stars above and observe the goings-on in outer space. To understand telescopes an important question to answer is what are the […]
How To Clean Telescope Lenses
No matter whether you are using a reflector or a refractor telescope, your experience may be affected if it has a dirty lens. Dirty lenses on refractors mean you cannot use the telescope to its fullest extent. The greatest issue is that it reduces the quality of your image, if your lens is considerably dirty. In […]
What Does FOV Stand For?
FOV is an incredibly important aspect of a telescope. It is a parameter that dictates how much of the sky you can view at any time with your telescope. How much of the sky you can see depends on the focal length of your telescope and the focal length of your eyepiece. You may ask […]