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SolarCalc

SolarCalc is a utility to calculate sun and moon rise and set times at your current location. SolarCalc will also display lunar phase dates as well as the Julian Day, Greenwich Universal Time, Greenwich Sidereal Time and Terrestrial Dynamical Time.
Category Price Seller Device
Weather Free Kirk Boyd iPhone, iPad, iPod

Display's Civil, Nautical, and Astronomical twilight times.
Displays Sun and Moon Right Ascension and Declination.
Displays Sun and Moon Altitude and Azimuth.
Display's Moon age, distance and apparent size.

Note: SolarCalc accounts for approximate refraction of 0.5667 degrees. Rise or Set is based on the upper limb instead of the center of the disc. Civil twilight calculations are based on the zenith distance of the center of the solar disc (6 degrees below the horizon).

Reviews

Very good app.
Daleneid

Great program. Lot of good info that's good to know.


SolarCalc
Steve65Jub

This is like having the nautical almanac gone mobile. Great info at one's finger tips!


GMT?
Wayne O. 1234

Could be 5 stars but... Used a custom location and all the info is in GMT instead of local time - useless! Please fix this ASAP or give choice.


Awesome app
Cnash77

Super cool & will help me plan outdoor activities! Love it. Great job developer!


Purrfect!
GladBlu

Has all the info I need in a very accessible format.


So much more than sunrise/set
Vmmson

Very impressed - makes me want to study the sun


Could be better
ZachE48

App does not rotate from vertical to horizontal when you turn the iPad! It's like a zoomed iPod app - works only in one vertical orientation.


Best of the moon phase apps!
Fogbog

A lot more in this app than other similar ones


Crash, crash, crash
OntBea

Have been using app for a few months, liked it so I purchased full version. Just downloaded new update and now it crashes whenever I try to open it. One star until the problem gets fixed.


Crashes after opening screen shot
KL1968

Crashes with my iPhone 4S since the recent update. Worked great until the update and I hope problem gets resolved


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