Fov calculator telescope

Forgot your password? It's back! Our aim was to make it easy for someone to determine if a CCD camera and telescope are a good match. We included a link to the experimental calculator and invited comment, fov calculator telescope.

Forgot your password? By 12dstring August 11, in Discussions - Software. You may have come across a field of view calculator I wrote over 5 years. It's by far the most popular thing I've written, and gets quite a lot of links from various SGL threads. It originally was just a simple calculator, but was expanded to something of a fov simulator.

Fov calculator telescope

There are a lot of terminologies to learn when you start a new hobby and astronomy is no exception. So what is it? Put very simply, the field of view is how much sky you can see, as measured in degrees. Since we only have eyes at the front that look forward, this is impossible. More realistically then, the average human eye, without the help of binoculars or a telescope, has a field of view of about degrees. In other words, we can typically see everything in front of us and a little way to the sides. In astronomy, the field of view usually refers to how much of the sky we can see through either binoculars or the eyepiece of a telescope. You can observe the Moon with two different sets of binoculars that both have a magnification of 10x. If one has a larger field of view than the other, it simply means you can see more of the surrounding sky. The Moon itself will appear exactly the same through both pairs of binoculars. This typically involves starting with a bright star and then hopping across to other stars until you reach your destination. Get the field of view wrong and you could get lost looking for the next star to hop to. There are two other reasons why your field of view is important — and they both come into play once you have your target in your sights.

The field of view is 1.

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The field of view FOV in a telescope defines the extent of the observable universe that is visible through the eyepiece at any given moment. Knowing the FOV allows astronomers to determine the ideal eyepiece for a specific observation. Calculation of the TFOV is done by dividing the AFOV of the eyepiece by the magnification of the telescope, or through the relationship of the focal lengths of the telescope and the eyepiece. The TFOV is typically expressed in degrees. The FOV in the eyepiece is determined by its specific AFOV, and the choice of eyepiece thereby plays a vital role in the observational experience.

Fov calculator telescope

Telescopes open our eyes to the marvel of the cosmos: the telescope field of view calculator will tell you exactly how much! Our eyes work pretty okay, but they are absolutely useless when it comes to distant things. It makes sense: we evolved to see predators a hundred meters away, not stars on the other side of the galaxy. That's where telescopes really give us an edge. A telescope is an optical device that collects light , thanks to a well-thought set of lenses, which focuses and magnifies an image on our retina.

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SnakeyJ Posted August 12, Go to topic listing. I will expand it. New Astronomy Tools Calculator. FLO Posted December 3, I think the others do, too. Most are already listed but we have received a request for the the Takahashi 0. A simulated view of the full Moon through an 8mm eyepiece at 81x with a field of view of 0. At the closed end of the tube is a mirror that reflects the incoming light off a secondary mirror and up to the eyepiece. It does make sense but it introduces an amibiguity in regard to sensor size which is highly variable in CCD. Link to comment Share on other sites More sharing options Thank you for that.

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I use those all the time. Archived This topic is now archived and is closed to further replies. I will expand it I never ignore you Olly, I am grateful for your feedback and admire your work. Thank you, Mondo Reply. I sometimes get asked to add equipment that's already on the list, so I guess it's not too easy to always find them. These numbers could be in imperial or metric measurements. If you're looking for some constructive hopefully feedback, may I make two suggestions. AlexB67 Posted August 11, It's by far the most popular thing I've written, and gets quite a lot of links from various SGL threads. More realistically then, the average human eye, without the help of binoculars or a telescope, has a field of view of about degrees. For example, I have a zoom eyepiece that can vary its focal length from 24mm to 8mm. Someone coming to this for the first time might be confused when told that pixel size affects field of view. So the larger your field of view, the more stars are visible to use as reference points. I remember Grant worked especially hard on that one.