At morning twilight on December 13, 2025 (Hawaii-Aleutian Standard Time, HAST), the Faint Object Camera and Spectrograph ...

Subaru Telescope’s advanced Prime Focus Spectrograph (PFS) has been given a new Hawaiian name, ʻŌnohiʻula. This name ...

The Call for Proposals for Semester S26A received 157 submitted proposals for the Normal and Intensive Programs requesting a total of 444.92 nights. After screening by TAC, 93.13 (including 11ToO) ...

The Role of Subaru Telescope in Supernova Research: A Q and A Interview with Nobel Laureate Saul Perlmutter ...

The Subaru Prime Focus Spectrograph (PFS) is a spectrograph system mounted at the prime focus of the Subaru telescope. Four identical spectrograph modules are fed by a total of ~2400 fibres, allowing ...

The Subaru Telescope's wide and deep imaging observations are contributing information to the New Horizons spacecraft as it moves through the outer Solar System. By applying a unique analysis method ...

The Subaru Telescope has started a new outreach camera project in collaboration with the Asahi-Shimbun, one of the most popular newspapers in Japan. This camera is used for live streaming of the night ...

11月23日（日）に三鷹中央通り商店街で開催された、「第9回星マルシェ」にハワイ観測所がブースを初出展しました。 星マルシェは、毎月第4日曜日に三鷹中央通り商店会が主催する地域 ...

Before dawn on March 3, 2022 (Hawai`i Standard Time), Subaru Telescope achieved the first launch of a new laser guide star system, upgraded and used for the Subaru Telescope’s adaptive optics system.

An international team of astronomers has discovered a tightly packed cluster of supermassive black holes dating back 10.8 billion years―the most extreme concentration of such objects ever found in the ...

The Subaru Telescope has revealed a fourth member of the sednoids, a group of small bodies with peculiar orbits around the outer edge of the Solar System that includes Sedna. The new object, ...

(1): This percentage represents 100 x ([On-source Integration Time]) / [Total Integration Time]). (2): This percentage represents 100 x ([On-source Integration Time ...