Fov calculator telescope

Forgot your password? By 12dstring August 11, in Discussions - Software.

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. Thank-you to everyone who responded with suggestions. This finished calculator includes many of the improvements you suggested, we hope you find it useful.

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.

I wonder sometimes if you, Sara, Per and anyone else with night after night of fov calculator telescope dark sky realise how very fortunate you are. Replies 29 Created 10 yr Last Reply 10 yr. With a smaller field of view, you see less of the sky.

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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.

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. Aren't lenses enough? What about our mirror equation calculator?

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Well Dave, I think it's a vast improvement and v1 is a belter it's lightening fast in comparison. Grant Posted July 14, Facebook Twitter Pinterest. In other words, light travels mm 65cm from the aperture to the eyepiece. Save my name, email, and website in this browser for the next time I comment. We forgot the 'Add New Equipment to Database' button It is now there so if your telescope or camera isn't in the list please add it. I use the original all the time to plan the best use of my equipment. Had a couple of blanks when using simbad even when it said it had found the image. Recommended Posts. 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. My shortest eyepiece has a focal length of 3 mm, which gives me a magnification of nearly x. My Celestron Travel Scope Refractor. Great for checking out all possible camera and telescope combinations. Link to comment Share on other sites More sharing options

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Look forward to having a go with v2, as soon as I can get on the computer I think it's made of tiny incremental improvements. Reducers and barlows need to be added by us. I use the original all the time to plan the best use of my equipment. SnakeyJ Posted August 12, When set to the focal length of 24mm, it gives me a magnification of 27x and has an apparent field of view of 60 degrees. Since , as AstronomySource and TelescopicWatch, we've published astronomy-related content and reviews to help guide the community better. By adjusting the focus so that the stars appear sharp, you can be certain your target is properly focussed too. The first number denotes the magnification, while the second indicates the diameter of the objective lens in millimeters. That's a fantastic bit of kit, I've wasted hours playing with that and putting together my "Fantasy Observing " rigs. You can change the effective field of view of a CCD the amount of sky covered by the sensor by changing the focal length of the telescope. I'd have thought that the amount of sky which fitted onto the sensor was goverend by the size of the sensor, not the size of the pixels. Sign in with Facebook. Black Knight Posted August 11, Something that you can be proud of as such a useful tool for the astro community.