The Vera C. Rubin Observatory released its first images taken with the world’s largest digital camera on June 23, 2025 (local time). This marks the beginning of the Legacy Survey of Space and Time ...

Detail ： GJ 504 b is an exoplanet orbiting a sun-like star GJ 504. It is estimated to be three to six times more massive than Jupiter, making it the least massive planet ever directly imaged. This ...

When we look up at the night sky, we see stars that appear to twinkle. This twinkling occurs because the light from the stars is disturbed by turbulence in Earth’s atmosphere caused by changes in the ...

国立天文台や東京大学の研究者を含む国際共同研究チームは、くじら座の方向の約 108 億年前の宇宙で 11 個の超巨大ブラックホールが一斉に輝く構造を発見しました。これほど密集した超巨大ブラックホールの集団が見つかったのは、初めてのことです。すばる望遠鏡による広視野観測と ...

Subaru Open-use Policy Eligibility for each program Eligibility for each program is described in each page: Normal Program Intensive Program Service Program HSC Filler Program PFS Community Filler ...

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 ...

Service Program is for observing proposals which require less than or equal to 4 hours including all the "open-dome" calibrations and overheads. All Service Program observations will be executed by ...

The following tables list filters available for open use observation of the HSC, together with their sensitivities. The transmission curves measured at the center of filters are available as plots and ...

Applicants are requested to access the ProMS2.0 page to fill the webform for the application form and upload necessary files (e.g., PDF files of Scientific Justification). Please refer to ...

System Overview of Subaru AO188 AO188 module Subaru AO188 is an 188 element curvature sensor adaptive optics system that are operated in both natural guide star (NGS) and laser guide star (LGS) modes.

An international team of astronomers has solved one of the longstanding cosmic mysteries by uncovering direct evidence of a massive, long-lost object that collided with the Perseus cluster. Using high ...

Researchers have finished equipping the Subaru Telescope with a new special "compound eye" culminating several years of effort. This new eye is an instrument featuring approximately 2,400 prisms ...