くじら座の方向にある渦巻銀河 NGC 958。斜めを向いた姿で、はっきりとした2本の腕のほか、「ダストレーン」と呼ばれる暗い筋もよく見えます。このダストレーンは、細かな塵が帯状に集まったもので、星から出る光 ...

The Subaru Telescope has revealed a fourth member of the sednoids, a group of small bodies with peculiar orbits around the ...

すばる望遠鏡による観測で、小天体セドナに代表される、太陽系外縁部を特異な軌道で公転する小天体群「セドノイド」の一員となる４番目の天体が新たに発見されました。研究チームによって「アンモナイト」の愛称がつけられたこの天体「2023 ...

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 ...

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 ...

Adams, N.J.; Bowler, R.A.A.; Jarvis, M.J.; Häußler, B.; & Lagos, C.D.P., Evolution of the galaxy stellar mass function: evidence for an increasing M from z = 2 to ...

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 ...

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 ...

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