Space & Astronomical Optics EXPO

Key facts

Attendance 2025

15 658

Exhibitors

490

Floor space

—

Admission

—

Frequency

Annual

Editions

1 (2026)

Attendance and exhibitor figures for 2025 are the organizer's own and are not independently audited. They may include co-located or joint exhibitions.

Space & Astronomical Optics EXPO is an annual trade fair in Yokohama (Kanagawa) covering astronomical object dome, astronomical telescope and auto guider. The most recent edition on record ran 22–24 April 2026 at Pacifico Yokohama; no future date has been announced. The 2025 edition reported 15,658 visitors and 490 exhibitors, a figure published by the organiser and not independently audited. Organised by NPO Japan Photonics Council / The Laser Society of Japan /The OPTRONICS Co.,ltd.

What is exhibited

• actuator
• astronomical automatic introduction system
• astronomical object dome
• astronomical telescope
• auto guider
• camera
• CCD detector
• cooling CCD camera / large binoculars
• Curvature sensor
• encoder
• eyepiece
• infrared image detector
• large telescope
• planetarium
• Shack-Hartmann sensor
• telescope

J-messe subject tags

JETRO's own classification, kept verbatim. Fairs carry several; the sector in the sidebar is the single one this site browses by.

• Testing & Measurement
• Advanced Materials
• Electrical & Electronics
• Telecom & Computing
• Optics & Lasers
• Aerospace & Aviation

Editions on record

Every dated instance of this fair the database holds. A series keeps one identity across renames and moves; each row below is one edition of it.

Where this came from

Field-level provenance for the most recent edition: what each fact came from, how far it is trusted, and when it was last checked.