From DSO Planner
This module allows to search for external astro applications and start them from DSO Planner (Figure [#fig:astrotools_screen 14]). It also includes two integrated application:
- Twilight calculator. Sun and Moon rise/transit/set time; Moon phase; civil, nautical and astronomical twilight on any date. The Twilight Calculator tool is also taking the Moon data into account to calculate the true darkest sky period on the the current night as well as to give prediction for the next 30 days ahead. Turn your device into landscape orientation to see the duration of true darkest sky period as well.
- Astro flashlight (including red flashlight for night mode)