** List of Observation Scenarios
+ Crescent Observation
https://youtu.be/JdoHzAH1AGc
+ Half Moon Observation
https://youtu.be/WPpvfXlMJt0
+ Geocentric model view
https://youtu.be/xxmMSk69N9M
+ Total Solar Eclipse
https://youtu.be/FAUIrYvrKbc
+ Motion of Jupiter and Saturn
https://youtu.be/7qB5Do-oabQ
+ Axial Tilt
https://youtu.be/3EqoGwQ19GE

** Overview
+ Planetarium to hold the device in the sky
+ Constellation clip arts based on the star maps of 1600 - 1800
+ By the horizontally launched sightseeing spaceship, leaving the Earth
+ Inside the sightseeing spaceship, see the view in the direction to hold the device
+ Confirm the relationship between the phases of the moon and the position of the sun, the earth, and the moon
+ Confirm the appearances and orbits of inner planets and outer planets
+ Observation of solar eclipse and lunar eclipse around the world
+ Radiant point display of the meteor shower in the activity period
+ Search for constellations, stars, planets, etc
+ Please try following with this application after forecasting.
- If the Earth's axis of rotation falls sideways, what about the day and night? How the seasons go?
- If the inclination of the axis of the earth is 0, what about day and night? How the seasons go? Where are the sunrises?
- If the Earth's rotation stops, what about the day and night?
- If the Earth's revolution stops, how the seasons go?
- If the earth were the center of the universe, the Ptolemaic system?
+ Astronomy application which students and teachers, parents and children, grandchildren can enjoy together.