Chikyū 33 Banchi

Overview

Chikyū 33 Banchi is the nickname of a location in the Minamikaneda and Yayoichō areas of Kōchi City, Kōchi Prefecture. Under the old Japanese geodetic datum, it marks the point at 133°33'33.333" east longitude and 33°33'33.333" north latitude. The name plays on the striking repetition of the number 33.

Highlights

• ●The point where longitude and latitude both align as 33°33'33.333" under the old datum
• ●A nickname derived from the word 'Earth' and the parcel number 33
• ●A place to sense the positional shift caused by different geodetic systems
• ●A number-themed spot located within the Kōchi city area

History

The nickname comes from the coordinates aligning strikingly on 33 under the old Japanese geodetic datum. Under the current world geodetic system, however, the same point lies at 133°33'23.937" east and 33°33'45.446" north. The correct position where the world datum reads 33°33'33.333" is near 7-47 Hinodechō in Kōchi City, about 445 meters southeast of the old datum position.

Map

33.5593, 133.5593 · Wikidata

Suggested itinerary

1. 1Visit the Chikyū 33 Banchi point under the old Japanese datum
2. 2Note the origin of the number 33 tied to the coordinates
3. 3Move to the correct position under the world datum near Hinodechō
4. 4Sense the roughly 445-meter shift caused by the different datums

Did you know?

💡 The correct position under the world geodetic system lies about 445 meters southeast of the old datum position.

Nearby spots