SoLuna
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SoLuna is a utility for the iPhone™ and iPod® touch that calculates moon phases as well as predicted rise and set times for the sun and moon. It also calculates predictions for the begin and end of civil, nautical, and astronomical twilight. The current moon phase is shown at the top of the main screen, while the predicted dates for the next 4 major phases are shown along the bottom of the main screen. The rise, set and twilight data is in table form in the center of the screen. The current latitude and longitude that the program is using for calculations is displayed in decimal format at the bottom left of the main screen. SoLuna can use the built in location capabilities of the iPhone to determine your location, or you can set your location manually on the settings page. You can can also change the date on the settings page to calculate information for other dates. |
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If the "Use Today's Date" switch is on, the date picker at the bottom of the screen is disabled and SoLuna will use the system date. If the "Auto Detect Location" switch is on, the latitude and longitude fields are disabled and SoLuna will obtain its latitude and longitude information from the iPhone. This option is disabled on the iPod touch, so iPod touch users will need to provide the latitude and longitude. If the "Use Today's Date" and "Auto Detect Location" switches are both on SoLuna uses the system time zone, otherwise you can set the time zone to match your location and to reflect daylight savings time for the chosen location. The format for the timezone field is in hours offset from Greenwich Mean Time. The timezone setting will determine how the times on the main page are adjusted for display. For example, US central standard time is set as -6. US central daylight time is set as -5. Tip: If your location doesn't change often, after SoLuna determines your latitude and longitude turn 'Auto Detect Location" off. The current latitude and longitude are stored and used until you edit them or you turn auto location back on.
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