Subaru Gallery

Movie Gallery - The Subaru Telescope


The Universe at your fingertips
Visitors to the ‘Imiloa Astronomy Center of Hawai‘i can now explore the Universe using their hands, thanks to WorldWide Telescope and Kinect motion-sensing controller. This system was recently installed by public information and outreach group at the Subaru Telescope, National Astronomical Observatory of Japan (NAOJ). Here, Dr. Yuko Kakazu from the Subaru Telescope demonstrates how to travel across nebulae, stars, galaxies, and beyond. (Video recorded by Saeko Hayashi, edited by Yuko Kakazu)

Credit: NAOJ
Filming: Saeko Hayashi (Subaru Telescope)
Editing: Yuko Kakazu (Subaru Telescope)
Related article: Subaru at ʻImiloa: Lift Off to Visit Your Favorite Place in The Universe (Topics: February 29, 2016)
Upgraded MOIRCS Test in the Simulator Lab
MOIRCS undergoing testing at the Simulator Lab in Subaru Telescope's Base Facility in Hilo during upgrade work. Performance was carefully monitored while the simulator tips and the instrument rotator turns to confirm that the instrument will perform properly in all orientations on the telescope.

Credit: NAOJ
Filming: Saeko Hayashi (Subaru Telescope), September 22, 2015
Related article: Upgraded MOIRCS Instrument Achieves New Year's Resolution – Better Images (Topics: January 19, 2016)
Geminids over the Subaru Telescope
Geminid meteors glide across the sky over the telescopes on Maunakea. The view was captured by a fish-eye lens camera on top of the Subaru Telescope's control building.

Credit: Institute of Astronomy, University of Tokyo / Subaru Telescope, NAOJ / Adachi City
Compiled by: Hideaki Fujiwara (Subaru Telescope), December 13-14, 2015
Related article: Fish-Eye Camera Captured Geminids over the Subaru Telescope (Topics: January 6, 2016)


Tanabata Stars Embrace Telescopes on Maunakea
The first segment of this time lapse video captures the Subaru Telescope from the distance, but still within the summit ridge of Maunakea. Equipment was Canon EOS Rebel T2i. Third segment is a close-up of the Subaru Telescope enclosure. Camera (Canon ESO 6D) was located between the Subaru Telescope and Keck I telescope. All movies are composed of 30 seconds exposure photos taken by Sean Goebel (Institute for Astronomy, University of Hawaii and the Subaru Telescope, NAOJ).

Credit: NAOJ
Filming: Sean Goebel (Institute for Astronomy, University of Hawaii and the Subaru Telescope, NAOJ), August 8, 2015
Related article: Stars and the Milky Way Embrace the Telescopes on Maunakea (Topics: December 14, 2015)
How a Telescope Tracks Its Target
The first part of the video and Figure 1a were taken from a spot directly behind the telescope, using a Canon EOS 6D and a 1-minute exposure. The second part of the video and figure 1b show the Subaru Telescope motions from the rear and right sides. This video may cause some viewers discomfort, according to photographer Sean Goebel. "During the change of the target, the rapid motion might make viewers of this video a bit queasy. Please do not fast-forward the video," he said.

Credit: NAOJ
Filming: Sean Goebel (Institute for Astronomy, University of Hawaii; Subaru Telescope, NAOJ), October, 2015
Related article: How a Telescope Tracks Its Target (Topics: December 2, 2015)
Images Connect Subaru Telescope and the International Space Station
The bright track of the International Space Station over Maunakea. Made from images captured on the morning of November 4, 2015.

Credit: NAOJ
Filming: Hideaki Fujiwara (Subaru Telescope), November 4, 2015
Related article: Images Connect Subaru Telescope and the International Space Station (Topics: November 16, 2015)
Snow blower making safe passage
Road maintenance crew of Mauna Kea Support Services are hard at work to make the passage safe to the summit area of Mauna Kea, Hawai'i above 13,000 feet. Even in a tropical climate zone, the high mountain provides very unique challenge. As you can see, the snow blower is making its way slowly up against the backdrop of deep blue sky.

Credit: NAOJ
Filming: Saeko Hayashi (Subaru Telescope), March 14, 2015
Filter exchange system for Suprime-Cam
Suprime-Cam, the wide field of view imager mounted on the primary focus of Subaru Telescope located on Mauna Kea, Hawai'i, USA and operated by the National Astronomical Observatory of Japan, has been used for a variety of research subjects. In order to choose specific color in the light for their study, astronomers can use wide-band filter or narrow-band filter. Support astronomers were working on the maintenance of these filters and the exchange system in the laboratory in the base facility in Hilo, which gave a rare opportunity to get a glimpse of how the exchanger works.

Credit: NAOJ
Filming: Saeko Hayashi (Subaru Telescope), December 2, 2014
Related article: Filter exchange system for Suprime-Cam (Topics: April 1, 2015)


The Subaru Telescope in the Moonlight and the Rising Summer Milky Way
The Milky Way is what we can see of our home galaxy by looking at it from the inside. This video taken with time-lapse photography on the summit of Mauna Kea, where the Subaru Telescope is located, shows the Milky Way rising on a summer night. This night, the Moon shines near full phase. In the moment the Moon sets, it illuminates the Subaru Telescope with red light like the setting Sun. Then after the Moon fully sets, the stars shine brightly throughout the entire sky and the presence of the ascended Milky Way increases. Laser light projected by the neighboring Keck Telescopes to serve as an adaptive optics guide star also reaches towards the center of the Milky Way.

Credit: NAOJ
Filming: Hideaki Fujiwara (Subaru Telescope), May 11, 2014
How Subaru Telescope Staff Cleans an 8.3 m Mirror
The primary mirror of the Subaru Telescope spans 8.3 m in physical diameter and requires periodic cleaning to minimize dust and other extraneous material that could interfere with observations. Standard maintenance of the telescope includes on-site cleaning of the mirror every few weeks. The structure of the telescope contains four curved wands with nozzles that are hooked up to cylinders of liquid CO2. The CO2 gas comes out from numerous small nozzles and part of it sublimates to a more solid form ("snow"), then it touches the mirror to expand 700 times in volume upon returning to its gaseous state without leaving a residue. This expansion is powerful enough to remove dust from the mirror yet soft enough for repetitive applications that will not scratch the mirror coating.

Credit: NAOJ
Filming: Saeko Hayashi (Subaru Telescope), June 9, 2014
Related article: How to Clean a Huge 8.3 m Mirror Surface (Topics: July 10, 2014)


Hyper Suprime-Cam (HSC) Installation on the Subaru Telescope
The installation of Subaru Telescope's powerful new instrument, Hyper Suprime-Cam (HSC), took place from August 16-17, 2012. Mounting this huge camera (3 meters tall, weighing 3 tons) at prime focus on the inner, top ring of the 22.2 meter (72.8 feet) tall telescope structure at a high altitude of almost 4205 meters (14,000 feet) is a challenging process. It requires the careful attention and expertise of the crew to transfer the instrument and connect its cables for operation. Note how often the crew is standing on platforms to ensure the proper placement of the instrument. HSC can map a region of the sky the size of seven full moons and provide extraordinary photographs of faint objects in the far distant Universe with its wide field of view and high-resolution imaging.

Credit: NAOJ
Filming: Hideaki Fujiwara (Subaru Telescope), August 16, 2012 from 14:30 to 19:30 HST
Related article: Hyper Suprime-Cam Ushers in a New Era of Observational Astronomy (Topics: September 12, 2012)
Starting Observations at Subaru Telescope
As the sun sets, the shutters of the Subaru Telescope open, and scientists prepare for their observations of celestial objects through the night. This time-lapse photography shows changes in the night sky and later displays a laser beam emerging as a line of light projecting from the telescope. The laser creates an artificial guide star, which can be used with Subaru Telescope's adaptive optics system to correct for turbulence in the Earth's atmosphere that could blur images captured by the observing instrument. Please enjoy the pictures of the Subaru Telescope's appearance during a beautiful sunset at Mauna Kea's summit and the transition of its environment into the star-studded night sky.

Credit: NAOJ
Filming: Hideaki Fujiwara (Subaru Telescope), June 19, 2012 from 18:45 to 21:00 HST
Lahaina Noon at Subaru Telescope's Base Facility
Hawaii is the only U.S. state where people can experience Lahaina Noon, the few moments when the Sun is directly overhead, and upright objects, such as a post, have no shadow. In the tropics, the Sun only passes overhead twice a year, usually in May and July. Look at the base of the milepost to see how the shadows of the milepost in the courtyard of Subaru Telescope's base facility in Hilo, Hawaii shift before and after Lahaina Noon. When the Sun crosses the meridian point (its highest point), the shadow of the milepost almost disappears but then emerges again on the right side of the post.

Credit: NAOJ
Filming: Hideaki Fujiwara (Subaru Telescope), May 15, 2012 from 12:00 to 12:30 HST
Related article: Magical Moments of Lahaina Noon in Hilo (Topics: May 25, 2012)


Subaru Telescope's Enclosure Channels Airflow
When designers of the Subaru Telescope opted for a cylindrical rather than dome-shaped enclosure for the telescope, they conducted research that showed that the air would flow horizontally around the building rather than moving up or down. The horizontal flow would suppress the rise of turbulent air just above the ground and hinder it from crossing the telescope's optical path and distorting the image taken by the telescope's camera. This video confirms the reality of the designers' vision. Conditions were ideal for easily observing airflow: no clouds in the upper air; a white cloud slowly flowing in the easterly wind at ground level; and the background of a clear blue sky. When the cloud met the enclosure, it split, wrapped around it, and flowed downstream.

Credit: NAOJ
Filming: Saeko Hayashi (Subaru Telescope), December 19, 2011
Related article: Seeing Is Believing -- Smooth Airflow around Subaru Telescope's Cylindrical Enclosure (Topics: April 18, 2012)



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