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 ...

Job Summary CLOSING DATE: July 31, 2025, or until filled. Applications received after this deadline may be considered only if the position is not filled or up to the date a selection has been approved ...

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 ...

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 ...

Information for PIs Proposal checklist Observation checklist Preparation of an OPE file List of OH airglow masks Echidna spine ID and spectrum ID matchup FIBRE-pac: FMOS data reduction package Further ...

FOCAS Integral Field Unit (IFU) Information The IFU for FOCAS was developed by a team in the National Astronomical Observatory of Japan (PI: Dr. Shinobu Ozaki, Advanced Technology Center, NAOJ) 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 ...