Subaru Telescope
  • S
  • M
  • L
  • English
  • 日本語
  • For Researchers
    and Students
    • Open-use observation
    • Science
    • Education
    • Other information
  • For
    Business Users
    • Visiting Subaru Telescope for Observation
      and Telescope / Instrument Work
    • Instrument and Telescope maintenance,
      development and engineering
    • Safety
    • Notes
  • For
    the Media
    • Request an interview
    • Notes
  • For
    Educators
    • Lectures at Hilo base facility
    • Notes
    • HOME
    • About the
      Subaru Telescope
      • Overview of
        Subaru Telescope
      • Features of the
        Subaru Telescope
      • Director of the
        observatory
      • List of
        Researchers
      • Staff
        Interviews
      • Observational
        instruments
      • History
      • Publications
        and Videos
    • The Universe Revealed
      by the Subaru Telescope
    • Science
      Results
    • Topics &
      Announcements
    • Subaru Telescope 2.0
      • Subaru Telescope 2.0
      • Key Instruments
      • Science Goals
      • Collaborations
    • Activities of the
      Observatory
      • Open-Use and Education Activities
      • For Telescope/Instrument
        Work
      • Public Information and
        Outreach Office
      • Toward Coexistence
        with Hawaiian Culture
    • Subaru
      Gallery

Subaru Gallery

  • Back to Subaru Gallery
  • Back to Subaru Gallery

Images from Science Instruments

Galaxy Clusters 4.1 Billion Years Away (Left) and 6.2 Billion Years Away (Right)

March 20, 2025
Last updated: April 2, 2025

  • Low Res.
  • Mid. Res.
  • High Res.
Detail : Low Res. ( 142 KB) / Mid. Res. ( 570 KB) / High Res. ( 5.1 MB)

As the Universe expands, the wavelengths of light emitted from distant celestial objects are stretched, causing the light to appear redder. This phenomenon is known as redshift, where light from more distant objects becomes redder. In the case of these two galaxy clusters, the cluster located 6.2 billion light-years away (right) is farther than the cluster 4.1 billion light-years away (left), showing redder colors. Redshift is crucial for astronomers to measure a precise distance to a distant object.
Please click 4.1 Billion Years Away( 9.2 MB ) / 6.2 billion light-years away( 9.8 MB) for high-resolution images.
(Credit: NAOJ; Image provided by Masayuki Tanaka)

【Instrument】Hyper Suprime-Cam (HSC)


Announcement (as of March 21, 2025):
In commemorating the Subaru Telescope’s 25th anniversary, we have added new gallery images twice a month since April 2024. We hope you have enjoyed the stunning images captured by the Subaru Telescope. A new series will launch in April 2025, featuring a new image of Maunakea on the first Thursday of each month and a celestial image taken by the Subaru Telescope on the third Thursday (Japan Standard Time). Please stay tuned to the Subaru Gallery throughout Fiscal Year 2025 (April 2025 – March 2026).

■Relevant Tags

  • Images from Science Instruments
Guidelines for use

Category

  • Images from Science Instruments Sorted by the Release Date
  • Images from Science Instruments Sorted by Distance from Earth
  • Starry Nights on Mauna Kea
  • Facility Photographs
  • Spherical Images of Subaru Telescope
  • Movie Gallery
  • Others
totop
Subaru Telescope National Astronomical Observatory of JapanSubaru Telescope National Astronomical Observatory of Japan
  • x
  • instagram
  • Facebook
  • youtube

follow us on

© 1999 National Astronomical Observatory of Japan
This project is supported by "Project to Promote Large Scientific Frontiers" of MEXT.

  • Direction
  • Job Vacancy
  • Website Terms of Use
  • Inquiries