Celestial sphere

In this article, we'll explore how the armillary sphere works, what the rings on it show, and how it helps visualize the movement of the Sun on the celestial sphere.

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The Celestial Sphere

Due to a policy of the Japanese government, from November 2, 2021, we will not be able to ship international small packages to the U.S., Canada, etc. without EMS (2,400 yen in Japanese yen). How long this situation will last is yet to be determined. The shipping cost for most of the products are about 3000 yen, so it's very high. Also, the only way to send them to Australia is by sea. We hope that this situation will return to be usual soon. Thank you for your understanding. Thank you very…

This is how we see the entire sky from the earth, projected to a sphere. This concept has been used for thousands of years since the stars are so far away that they seem to be fixed on an imaginary sphere. This image is oriented with the galactic plane (the Milky Way) horizontal. Concept inspiration [...]

Sky Tellers - Constellations

Our state-of-the-art representation of the entire celestial sphere lets you explore the stars above as never before.