ハワイ島マウナケア山頂域にあるすばる望遠鏡は、大きな鏡を活かし、暗い天体の姿をシャープに映し出すことで、1999年の観測開始から多くの宇宙の謎を解き明かしています。すばる望遠鏡画像集がこの3月に出版されたことを記念した講演会で、ハワイ観測所の田中賢幸准教授が、すばる ...

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

説明 ： 太陽に似た恒星「GJ 504」を周回する惑星「GJ 504 b」は、その質量が木星の3～6倍程度と見積もられ、直接撮像された惑星としては最小の質量を記録しました。この「第二の木星」とも例えられる暗く低温の惑星は ...

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 ...

Notes: See “CCD information” for the detail. The CCDs are arranged on the focal plane with two different gaps of approximately 12 arcsec and 53 arcsec between neighboring CCDs. We recommend that you ...

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 ...

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 ...

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.

Performance of Subaru AO188 Performance of AO is characterized by a Strehl ratio (a peak intensity normalized by that of PSF without any turbulence) and FWHM of the PSF. These depend on a the AO guide ...

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 ...

Graduate students from the Graduate University for Advanced Studies (SOKENDAI) participated in an observational training class using the Subaru Telescope on the first half of the night of November 9, ...

アメリカ・ハワイのマウナケアの山頂域にある「すばる望遠鏡」は、自然科学研究機構国立天文台ハワイ観測所が運用する口径 8.2 メートルの光学赤外線望遠鏡です。