The Subaru Telescope has officially named its advanced Prime Focus Spectrograph (PFS) as ʻŌnohiʻula, a title that reflects both its scientific capabilities and the cultural heritage of Hawaiʻi. This new instrument, which began full science operations in March 2025, is set to transform our understanding of the cosmos by allowing astronomers to observe up to 2,400 celestial objects simultaneously.
During a naming ceremony on November 19 at the Subaru Telescope’s base facility in Hilo, Hawaiʻi Island, Professor Larry Kimura from the University of Hawaiʻi at Hilo introduced the name ʻŌnohiʻula. The name embodies the concept of “perceiving the realm of our origins,” acknowledging the profound connection between scientific inquiry and the local culture.
Understanding ʻŌnohiʻula’s Significance
The term ʻŌnohi translates to “what one perceives from their sight,” a nod to the telescope’s function as an observational instrument. The component ʻula means “red,” referencing both the redshifted galaxies the PFS will study and its role in researching the early Universe and galaxy evolution. Professor Kimura elaborated, stating, “The name ʻŌnohiʻula represents the spectrum of the rainbow that we can see here, on the ground on Earth, and the eye of the instrument, particularly the color red, a sacred color associated with what we call the heavens in Hawaiian culture.”
The choice of this name highlights the Subaru Telescope’s dedication to integrating modern astronomical research with Native Hawaiian perspectives, reinforcing the importance of cultural significance in scientific exploration.
A Commitment to Collaborative Discovery
Professor Naoyuki Tamura, who has served as the PFS Project Manager, emphasized the importance of this cultural connection: “ʻŌnohiʻula represents not just a powerful new eye on the Universe but a commitment to conduct that exploration in conversation and collaboration with the people and place of Hawaiʻi.”
Meanwhile, Professor Hitoshi Murayama, the principal investigator of the PFS, expressed optimism about the future of the instrument: “Our instrument received a beautiful name in the Hawaiian language. It represents the science of PFS very well. I have a renewed resolve to make sure we will produce exciting science with ʻŌnohiʻula PFS just as this name indicates.”
The Subaru Telescope, operated by the National Astronomical Observatory of Japan, continues to play a vital role in advancing our understanding of the Universe. The launch of the ʻŌnohiʻula PFS marks a significant milestone in this journey, promising to unlock new knowledge about the cosmos while honoring the rich cultural heritage of Hawaiʻi.
