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 fov calculator telescope. We included a link to the experimental calculator and invited comment.

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. I've been working on a new version on-and-off for some time now, and it's finally at a stage where it does something useful so would love to get some feedback. The only downside is it won't work with older browsers tested with Firefox 24, IE 10, Chrome 28 and Opera

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 smaller your field of view, the fewer stars you can see. By adjusting the focus so that the stars appear sharp, you can be certain your target is properly focussed too.

Few people understand pixel-scale, so often they not always, and not everyone choose a camera according to it's perceived quality and who else owns it.

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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. The relationship between FOV and magnification is inversely proportional, such that an increase in magnification results in a narrower field of view, while a decrease in magnification yields a broader view. The field of view FOV in a telescope refers to the extent of the observable sky that can be viewed at a single point in time. The FOV plays a pivotal role in observational astronomy as it dictates the range of celestial objects that can be observed. For instance, a telescope with a larger FOV enables the viewing of expansive celestial bodies like nebulae and galaxies, whereas a telescope with a smaller FOV is more suitable for observing smaller entities like planets and stars. The apparent field of view AFOV refers to the perceived expanse of the sky covered by the eyepiece, while the true field of view TFOV represents the actual segment of the sky visible through the telescope.

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. The difference lies in how they focus the light. Refractors use a lens called an objective lens, while reflectors use a mirror placed at the bottom of the telescope in this case, the collecting end is called the aperture. Either way, the light gets focused at a certain distance the focal length , from where it starts diverging again.

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You lose the context of seeing the tree as a whole and all the surrounding trees in the forest. Thank you again for this toolset FLO, extremely useful when dealing with lots of variables!! Great calculator - only thing I would find useful is some way even as a text list is to be able to save the data fields which would make it easier to transfer to other SW requiring these details? Bovski Posted July 14, It isn't a 'how to choose' article but we have included this advice on the calculator page:. Few people understand pixel-scale so instead they not always, and not everyone choose a camera according to it's perceived quality and who else owns it. Digital AP and the internet are pretty well inseparable and your resource under discussion plays a part in that. A simulated view of the Pleiades star cluster, as seen through a telescope at 36x. I had a quick play with it, considering it is alpha I can't say I had any hick ups with it, it seems to be working fine for me. Stub Mandrel Posted July 14,

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Archived This topic is now archived and is closed to further replies. There are some binoculars that allow you to zoom in and out, but these are typical of lesser quality. Looking forward to using V2. Just been playing and so far, this is a great upgrade! Thank-you Tim. The larger the first number, the more magnification. Dreistein Posted August 12, One upgrade i think would be quite nice is to see the popular targets list extended when you get round to adding it. If one has a larger field of view than the other, it simply means you can see more of the surrounding sky. Just used it, looks good and the simbad search is great. In this case, the first number is the field of view, in degrees. Thanks Dave - I've used the v1 fov calc extensively and found it extremely useful. My preference for short explanations has resulted in an ambiguous sentence. Thank-you to everyone who responded with suggestions. Great job mate.