Blue Hour (Solar Photography Calculator)

The Blue Hour describes a period of dawn and dusk, when the sky is colored specially which is very interesting for photography. The duration and timing of the Blue Hour varies depending on location and on the date. In order to achieve optimum results and to plan in advance the app Blue Hour (solar calculator) has been developed.

The calculations are not only limited to the blue hour. Further information for sun and moon events can also be calculated. This includes information about sunrise, sunset together with data of the blue hour, golden hour and twilight times (civil, nautical and astronomical). Furthermore you can calculate information about moonrise, moonset and moon phases (calculated data are approximations of +/- 1 day accuracy).

In this app you can view data for multiple locations. These can be defined manually or automatically by getting your GPS location. Additionally you have the opportunity to manually set timezones of the locations, which can be helpful if you are planning trips to locations with another timezone than the one, where you currently are in.

Core features at a glance
โ˜€๏ธ Calculation of sunrise, sunset and solar noon
๐ŸŒ— Calculation of moonrise and moonset + moonphase
๐ŸŒ  Calculation of civil blue hour
๐ŸŒŒ Calculation of twilight times (civil, nautical and astronomical)
๐ŸŒ… Calculation of golden hour
๐Ÿ’ซ Visualization of the azimuth-data of sunrise, sunset, moonrise and moonset
๐Ÿ’ซ Visualization of the azimuth-data of sun and moon for specific time
๐ŸŒฆ๏ธ 5 days weather prediction
โ– definition of multiple locations, including current position (based on GPS)
โ– monthly forecast
โ– export of forecast-data to Excel-tables
โ– reminder for events
โ– homescreen widget

Note: the calculated values are approximations to plan your photography trips. Additionally it depends on weather situation, how good or if the blue or golden hour is visible.
Read more
595 total

What's New

v3.10 (November 2019)
* add solar noon to reminder
* use secured connection to fetch weather data
* some smaller bugfixes and performance improvements

Want to help translate this app into your language? Just get in contact to me!
Read more

Additional Information

Eligible for Family Library
November 3, 2019
Current Version
Requires Android
5.0 and up
Content Rating
Offered By
Robert Ehrhardt
ยฉ2021 GoogleSite Terms of ServicePrivacyDevelopersAbout Google|Location: United StatesLanguage: English
By purchasing this item, you are transacting with Google Payments and agreeing to the Google Payments Terms of Service and Privacy Notice.