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From Indigenous communities to amateur and professional astronomers to people just enjoying the night sky, satellites and light pollution pose a real threat to our dark and quiet skies! (2/3) IAU CPS NAOJ Wonder Yonder

Radio-quiet zones protect telescopes from ground-based interference, but satellites still pose a threat from space. That's why collaborations between scientists, policy-makers and the private sector are so important! (3/3) IAU CPS NAOJ Wonder Yonder

We posted the report about #IAUGA2024 Exhibition Booth in this August at Cape Town, South Africa. Please see the following web page. naoj-global.mtk.nao.ac.jp/en/about/e-3-p… #astronomy2024 #NAOJ

[Q.171] The “Citizen Astronomer Session” scheduled on September 28 (sites.google.com/view/violent-u…) will be held in the “Large Seminar Room” in #NAOJ Mitaka Campus. What’s the name of the building where this seminar room is located? #GCQA

(Choose an answer from below.)

#NAOJ will do the parts of his Online Stargazing Party! Please check the details and join the party. This is required to register in advance through online. Also, we provide some homework contents there. Please try to do it! #OnlineStargazingParty #APRSAF30

Inspired by previous observations using the #SubaruTelescope, a NASA JPL scientist offered to collaborate with a Japanese research team. The collaboration resulted in this stunning image of a "firecracker" at the edge of the Milky Way Galaxy taken by JWST. subarutelescope.org/en/news/topics…

[A.171] The answer is 3. Subaru Building. The remote observation room for #SubaruTelescope is settled and many researchers including Captain Tanaka have offices in this building. On the ceiling of the Large Seminar Room, Subaru (Pleiades) shines.

Topics: Subaru Telescope Inspires JWST “Firecracker” Discovery The stunning image of a “firecracker” at the edge of the Milky Way Galaxy by JWST would not have happened without previous observations of the same area by the Subaru Telescope. nao.ac.jp/en/news/topics… #NAOJ

Fostering East Asian Collaboration: ALMA Science and Data Analysis Workshops 2024 alma-telescope.jp/en/news/eaasw-…

I reported the analysis for the simulated galaxy classifications at Astronomical Society of Japan annual meeting. We received many questions and discussions from experts in galaxy evolution or AI applications. Our research with citizen astronomers grabs attention! (MA) #fromLab

Special #stargazing will be happened soon! Today is the Chushu no Meigetsu, Mid-Autumn Moon, based on old calendar. Usually, the day is full moon day. But this year, full moon is tomorrow. It is rare that the date of full moon and Chushu no Meigetsu is different! #NAOJ #MOON

This is the live streaming URLs of special stargazing! Enjoy the moon together with us! Please check it out!! #NAOJ #stargazing #moon

On September 15, 2024 (HST), the Subaru Telescope's All-Sky Camera captured a "tsunami" wave of airglow passing over the sky of Maunakea, Hawai‘i. Airglow waves with such a large magnitude are extremely rare. 👀Watch the movie⬇️ youtube.com/watch?v=lKzUNV…

Meet Subby, the official character of #SubaruTelescope. Subby's birthday is December 24, the same day as the engineering first light of the Subaru Telescope in 1998. Enjoy learning astronomy and outer space with Subby on the Subaru Kids website: subarutelescope.org/en/Kids/index.…

[Q.172] Today September 19 is the birthday of Dr. Koshiba Masatoshi, the 2002 Novel Prize for Physics winner for his pioneering work on neutrino astronomy. What is the astronomical object other than the Sun from which neutrino has been detected? (KI) #GCQA

(Choose an answer from below.)

As a #SubaruTelescope 25th anniversary project, we post two new images monthly on the Subaru Gallery page. NGC 521 is a barred spiral galaxy. Enjoy a clear view of the bulge, dust ring, barred structure, and extended 🌀spiral arms🌀. subarutelescope.org/en/gallery/pre…

This summer, the four undergraduate students related to Hawai‘i, each with a unique background and aspirations, experienced the Akamai internship program at #SubaruTelescope. Read the Interviews of the four interns: subarutelescope.org/en/news/topics…

[A.172] The answer is 3. Supernova. In 1987, KAMIOKANDE detected neutrinos emitted from the supernova SN 1987A. (Image Credit: Anglo-Australian Observatory/David Malin)