* A variety of astronomical phenomena are forecast.
- Moon age, Full Moon, New Moon, First quarter, Last quarter
- Total lunar eclipse, Partial lunar eclipse
- Total solar eclipse, Partial solar eclipses, Annular solar eclipse
- Meteor shower
- Comet closest to the Earth(perihelion passing)
- Rendezvous(bright star, moon, planets)
- Eclipse(bright star with moon)
- Mars closest to the Earth.
- Planet status(conjunction, opposition, quadrature)
- Greatest elongation(Mercury, Venus)
- Transit surface of the sun(Mercury, Venus)

* Realtime calculation.
You change the location or change time with the panel clock, and an astronomical calendar is rewritten instantaneously.

For instance, May 21, 2012 becomes "Annular solar eclipse" in Tokyo.
It will change into "Partial solar eclipse" if you change the location into other places.

* Clickable.
When you click the phenomenon, it is instantaneously displayed.
Switch to "Planetarium","Star Atlas","Information" and look.

* Attention !
There is a phenomenon not seen because it is daytime.
"Meteor shower" cannot be clicked.