Simulation in Astronomy

Download ( in Japanese )

The Best Exposure Time in Tri-color

Foucault Test

Planetary Rotational Canceler

Mask patern for focus

Guiding Error Canceler

Unsharp Making Process

Tone Curve in Astronomical Image

Anti-Blooming filter

Valuation of Star Spread Function program VSSF is coming soon.

Astro image editor SIRIUS is coming soon.

Adaptive Optics

Removing Streak ( in Japanese )

How do we watch the Io, a satellite of Jupiter

Simulation of Mirror Surface

Images and Resolution