Refracting telescopes are widely used for observing the moon, planets, and the sun, and the stable visibility of refracting telescopes is a major feature of these telescopes. The automatic introduction function "Cosmic Cruiser" makes it easy to observe the planets in daylight.
We manufacture refracting telescopes with apertures from 20cm to 30cm.

Even a large astronomical telescope can be easily operated with the Cosmic Cruiser, an automatic introduction function of celestial objects. The height of the eyepiece, which is a problem in this class of telescopes, is also reduced by Mitaka Koki's original eyepiece extension device, Wonder Eye, which allows children to observe safely even at night.

Telescope control linked with astronomical simulation software displays the current position of celestial objects in an easy-to-understand manner and enables automatic introduction of specified objects, making it easy to operate even for non-experts in astronomy.
Safety features include a warning display, software limits, hardware limits, and an emergency stop button to prevent unexpected problems.

Wonder Eye is a device that extends the telescope eyepiece and allows it to move in any direction. The telescope eyepiece can be lowered to ensure safety during nighttime viewing parties and to increase observation efficiency for large numbers of visitors.
Dual Wonder Eye is a type of telescope that allows two people to view the Wonder Eye at the same time.

The Star Image Layer is a device that allows any image or video to be superimposed on the field of view (eyepiece) of a Wonder Eye or Dual Wonder Eye telescope, making it a very effective device for explaining the telescope at an observing session. The telescope operator can check the observer's field of view on the monitor using the built-in camera.

The Sun is a familiar celestial body that can be observed during the daytime, but its changes such as sunspots and prominence activity can be confirmed in a relatively short period of time, making it a celestial body of great educational value, and various images of the Sun can be confirmed by observing at various wavelengths. Mitaka Kohki's solar telescopes are automatically controlled by the Cosmic Cruiser to minimize the burden on the operator.