[/caption]
There’s a new observing app for the iPhone, iPod and iPad, called TeleCalc. Enter in two data points about your telescope (aperture and focal ratio) and two about the eyepiece (focal length and diameter) the program calculates angular field of view, best eyepiece magnification, resolution (Dawes, Rayleight), exit pupil, limiting stellar magnitude and light gathering power.
TeleCalc is available in eight languages: English, Spanish, French, Italian, German, Portuguese, Russian and Japanese. Search “TeleCalc” in iTunes to download it or find it on the iTunes store.
Thanks to developer Fabio Rendelucci who has given Universe Today 3 free TeleCalc apps to give away.
The first 3 people to answer the following question will be sent a code for a free TeleCalc app:
To find the magnifying power of any telescope, divide the focal length of the telescope by the focal length of the what other telescope piece?
Submit your answers in the “Comments”
The gravitational wave background was first detected in 2016. It was announced following the release…
The giant outer planets haven’t always been in their current position. Uranus and Neptune for…
The hunt for extrasolar planets has revealed some truly interesting candidates, not the least of…
How did complex life emerge and evolve on the Earth and what does this mean…
In a world that seems to be switching focus from the Hubble Space Telescope to…
The world was much different in 1990 when NASA astronauts removed the Hubble Space Telescope…