Largest projection area in a planetarium (temporary)
- Who
- SEIBU LIONS, Inc., Ohira Tech Ltd.
- What
- 17,443.10 square metre(s)
- Where
- Japan (Tokorozawa)
- When
- 26 August 2023
The largest projection area in a planetarium (temporary) is 17,443.10 m² (187,756 ft²) and was achieved by SEIBU LIONS, Inc. and Ohira Tech Ltd. (both Japan) at BELLUNA DOME in Tokorozawa, Saitama, Japan on 26 August 2023.
The attempt took place along with an attempt challenged by the Saitama Seibu Lions official mascot Leo.