The Vera C. Rubin Observatory released its first images taken with the world’s largest digital camera on June 23, 2025 (local ...

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 HDS++ OPE file Editor (hoe) Subaru HDS++ OPE file Editor (hoe) is an application software to prepare observations with High Dispersion Spectrograph (HDS) and several other instruments of 8.2-m ...

determine parameters for "hdsql". The parameter "indirec" is the raw data directory confirmed in [1] + header of raw data file name ("HDSA000" usually). And file number without header should be ...

A systematic search for galaxy protocluster cores at the transition epoch of their star formation activity, MNRAS, 513, 3252 (07/2022) Aoki, W., et al., Silicon and strontium abundances of very ...

Notes Our observatory usually acquires 10 biases, 5 darks, and 10 dome flats with each filter for science calibration in every HSC observing run. In addition, basically, a spectrophotometric standard ...

ベラ・C・ルービン天文台は、世界最大のデジタルカメラによる観測画像を 2025年6月23日（現地時）に初公開しました。今後、このカメラを用いた大規模撮像探査プロジェクト「LSST（Legacy Survey of Space and Time）」が本格的に始まります。LSST には、国立天文台の研究者を含む日本の研究者も多く ...

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.

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 ...

Subaru Service Program 1. Definition 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 ...

A Giant Cluster of Supermassive Black Holes Supermassive black holes, known as quasars, shine like cosmic beacons due to the vast amounts of energy released as they actively consume matter from their ...