Tag: Telescope

#AlreadyTomorrowInHongKong #香港| #香港太空館 #HongKongSpaceMuseum #May2022 |凝望銀河中心－探索超級黑洞人馬座A*之秘 | Sagittarius A*: the Supermassive Black Hole at our Galactic Center – #EventHorizonTelescope #EHT…..

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Located in the Heart of Hong Kong central of Victoria Harbour in which locate looking at the iconic Megatroplis HongKong Island city landscape from the opposite is the Hong Kong Space Museum  香港太空館 in which located at 10 Salisbury Road, Tsim Sha Tsui, Kowloon, Hong Kong SAR, China –People’s Republic of China..  in which is one of the most international iconic buildings architecturally due to its hemispheric round dome in which is iconic known as one of Hong Kong’s local most cherish bread pastries the Pineapple Bun – Bolo Bao due to the pineapple ceramic texturing tiles of the dome structure that resembles the delicious texturing of the Pineapple Bun .. In which on In June 2014, the Hong Kong Government listed the pineapple bun as a part of Hong Kong’s intangible cultural heritage. … Despite the name, it does not traditionally contain pineapple; rather, the name refers to the look of the characteristic topping (which resembles the texture of a pineapple)……

On 21st May 2022 Saturday at 12 midday Hong Kong SAR – Beijing Time ….  A two hour Lecture speaker was live stream from Hong Kong Space Museum Venue: Lecture Hall, Hong Kong Space Museum perform in the Cantonese Dialect on Regardingly On凝望銀河中心－探索超級黑洞人馬座A*之秘 | Sagittarius A*: the Supermassive Black Hole at our Galactic Center….

On 12 May, the Event Horizon Telescope (EHT) revealed the first image or shadow of the supermassive black hole Sagittarius A* (Sgr A*). It is also the second black hole ever to be “seen” in human history.

EHT started observing the two black holes lurking at the centre of the M87 galaxy and the Milky Way in 2017. Sgr A*, our nearest black hole neighbour in the heart of our galaxy, is about 27,000 light-years away from Earth. Being about 2,000 times closer to Earth than the M87 black hole, the Sgr A* black hole should be an easier target to observe. However, why would its image come three years after the first image of the distant M87 galaxy? What are the challenges and difficulties of discovering, observing, and analysing this mysterious supermassive black hole?

In this lecture, we are honoured to have Prof Chan Chi-kwan, a member of the EHT team from Hong Kong, and the Associate Professor from the University of Arizona to introduce the characteristics of Sgr A* black hole and explain how to render the black hole image from mammoth amounts of data. The lecture will be live-streamed on the Space Museum’s YouTube Channel too. Therefore, whether you stay home or come to our Museum, you can also get to know this astronomy breakthrough with us!

【太空館活動】凝望銀河中心－探索超級黑洞人馬座A*之秘

「事件視界望遠鏡」計劃 (Event Horizon Telescope, EHT) 喺5月12日公布超級黑洞人馬座A* (Sagittarius A*, Sgr A*) 嘅第一張剪影影像，亦都係是人類史上第二個「睇」到嘅黑洞。

早喺2017年，EHT已着手觀測M87星系同銀河系中心嘅黑洞。位於銀河系中心嘅人馬座A*黑洞係目前已知離我哋最近嘅超大質量黑洞，距離地球約27,000光年，比M87黑洞近約2000倍，理應更易觀測。但係點解佢嘅「面貌」會比M87黑洞遲三年先首度面世呢？從發現、到觀測同分析呢個神秘嘅超級黑洞又有咩困難同挑戰？

喺今次嘅講座，我哋有幸邀請到EHT團隊中嘅香港成員，美國亞利桑那大學副教授陳志均教授為我哋拆解人馬座A*嘅特性，同講解如何從大量數據重組黑洞影像。講座更會喺太空館嘅YouTube頻道同步直播，所以大家無論安在家中，抑或親身嚟到現場都可以一齊了解呢個天文學研究嘅重大突破！

日期：2022年5月21日（星期六）

時間：中午12時至下午2時

地點：香港太空館演講廳

講者：陳志均教授（美國亞利桑那大學副教授）

Images and visuals are from the Hong Kong Space Museum -香港太空館 Hong Kong Space Museum –- 10 Salisbury Road, Tsim Sha Tsui, Kowloon, Hong Kong SAR- China- People’s Republic of China …..

#CNSA #ChinaNationalSpaceAdministration #國家航天局 |#BeltAndRoadinitiative #May2022 | #中国科学院 #ChineseAcademyofSciences #ChinaSpaceTelescope #ChinaOpticalTelescope optical telescope with a diameter of 1.2 meters to search for habitable #exoplanets in the immediate vicinity #ExoPlanetarySciences ….

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During the week of 20th May 2022 In an announcement CNSA – China National Space Administration– Chinese Academy of Sciences will launch an optical telescope with a diameter of 1.2 meters to search for habitable exoplanets in the immediate vicinity] Chinese scientists have proposed a sky survey program through space telescopes to search for habitable terrestrial planets outside the solar system about 32 light-years away from the earth. If implemented, this will be the first international space exploration mission dedicated to finding habitable terrestrial planets around nearby sun-like stars.

Ji Jianghui, a researcher at the Purple Mountain Observatory of the Chinese Academy of Sciences and the project leader of the “Nearby-habitable Planetary Survey Program”, introduced that the “Nearby-habitable Planetary Survey Program” will observe about 100 sun-like stars about 32 light-years away from the earth for a long time, which is expected to be the first time. The discovery of habitable zone terrestrial planets around them, especially “Earth 2.0” (planets with a size, orbit and environment very similar to Earth), achieve a major breakthrough in “from 0 to 1”. It is estimated that this plan is expected to discover about 50 terrestrial planets. Scientists will give information such as the number, true mass and three-dimensional orbits of habitable planets and “super-Earths” (exoplanets several times to 10 times the mass of Earth) through a detailed census of the nearby planetary systems in the solar system.

According to the plan, a high image quality, low distortion, high stability optical telescope with an aperture of 1.2 meters will be sent into the Halo orbit of the second Lagrangian point of the Sun-Earth system, and will maintain stable operation in this orbit for at least 5 years Time, during which 100 sun-like stars will be scientifically detected, and each star will be observed no less than 50 times.

Chinese Academy of Sciences located in 52 Sanlihe Rd., Xicheng District, Beijing, China (100864) – China -People’s Republic of China Images and visuals are from CNSA- China National Space Administration also from there respectives-

#MadeInChina #中國製造|#WFST #WideFeildSurveyTelescope April2022 | #UniversityofScienceandTechnologyofChina incredible #China- #PeoplesRepublicOfChina has built a new advance Next generation of #SkySurvey #Telescopes with a primary mirror diameter of 2.5 meters and 720 million pixels Scientific Imaging Detector Test Platform Completed”

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On 14th April 2022 China – People’s Republic of China has incredibility  has built a new generation of sky survey telescopes with a primary mirror diameter of 2.5 meters and 720 million pixels with Another Chinese Tianyan opened? Qinghai Lenghu will build a survey telescope with a primary mirror diameter of 2.5 meters….  Which If you use a lens with a diameter of 2.5 meters and a photosensitive element with 720 million pixels to make a telescope, how far can it see? How clear will things be?

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China – People’s Republic of China is currently manufacturing such a telescope. It is co-operated by the University of Science and Technology of China and the Haixi Mongolian and Tibetan Autonomous Prefecture of Qinghai Province. One of the sites of the astronomical observatory), the Wide Field Survey Telescope, whose full name is the University of Science and Technology of China – Purple Mountain Observatory of the Chinese Academy of Sciences Large Field Survey Telescope, English name Wide Field Survey Telescope, referred to as WFST, it is China – People’s Republic of China The new generation of astronomical survey telescopes developed by the State, a major national astronomical observation infrastructure, will become the optical time-domain survey telescope with the strongest ability to survey the sky in the northern hemisphere after completion.

​According to the news from the University of Science and Technology of China on April 11, the research and development team composed of the university and the Purple Mountain Observatory of the Chinese Academy of Sciences has completed the development of the primary mirror CCD290 camera and CCD test system. The relevant results have been published in the world famous astronomical instrument. In the publication “Journal of Astronomical Telescope Instruments and Systems”, this innovative research result laid the foundation for the development of the main focus camera for the large field telescope.

The large-field survey telescope is a new generation of astronomical telescopes developed in my country. The diameter of its main mirror is 2.5 meters. The design adopts the international leading main focus optical mode, which can provide a large field of view, high precision and wide-band sky survey capabilities. , its photosensitive element is a large area array 720 million pixel splicing CCD detector, which is spliced ​​by 9 CCD290-99 chips, the imaging array reaches 9K x 9K, and the imaging area reaches 92.2 mm × 92.4 mm, with ultra-low noise readout capability , the readout noise can be less than 5 electrons at a readout rate of 500Kpix/s.

The center of the above picture is the main focus camera, and the right is the CCD290 camera

​The main focus camera with

​Some people call the large-field survey telescope “another Chinese sky eye”. It is true that both have strong sky survey and observation capabilities, but the two are very different. In terms of observation methods, the Chinese sky eye (FAST) It does not move, basically just patrols the night sky with the rotation of the earth. It is impossible to fix the viewing angle at a certain point in the night for detailed observation, but WFST can dynamically patrol the night sky and can fix a certain celestial object on the sky. long time observation.

Schematic diagram of WFST structure

The electromagnetic spectrum observed by the two

Chinese Sky Eye

​As the strongest large-field optical survey telescope in the northern hemisphere, WFST is a “three-in-one” powerful prime focus camera that integrates “scientific imaging, wavefront detection, and guide star sensing”. It can discover countless galaxies, quasars and stars in the huge cosmic space, and can also monitor large-scale celestial collisions, supernova explosions, stellar helium flashes, fast radio bursts and other transient sources in distant cosmic spaces, as well as the Milky Way and nearby galaxies. Appearing variable stars and other celestial bodies, small celestial bodies such as asteroids and comets in the Kuiper belt in the solar system and far away can also be seen. In addition, the structure and formation and evolution history of galaxies can be judged by observing the star stream in the Milky Way and nearby galaxies.

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References :

The April 11 article in “Science China Journal” “The Large Field Survey Telescope Scientific Imaging Detector Test Platform Completed”

Images and visuals are from their respectives

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BeltAndRoadinitiative #March2022 | #CMS #ChinaMannedSpace the newest detach- attachable #ChinaSpaceTelescope #SpaceTelescope of the China Space Station  from the #Tiangong #SpaceStation Featuring the #SkySurveyOpticalModule #RemoteSensing #Satellite also helping to find #Exoplanets …

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Currently中国空间站 Previously On December 2021, the Belt and Road Initiative CNSA –China National Space Administration  CSS China Space Station in which on a three to six months setting up a new home of the first three Shenzhou 13 in which spending up to on for the further construction and verifications of the systems of the CSS –China Space Station 2021 launch calendar in which currently the three Takionauts current Shenzhou 13 ……  Preparations for the six months of extension of the China Space Station In which the currently it remains awaiting for the crew of setting up home in conducting fun scientifically onboard中国空间站..  China Space station ….. with among with more Shenzhou crew to arrive to finished construction of the China Space Station in which there’s more additional modules that could be detach and reattach itself as mission criteria required.  

Featuring the Sky Survey Optical Module has both sky and land survey capabilities, and can also be used as a remote sensing satellite] The Sky Survey Optical Module is equipped with a large telescope with a diameter of 2 meters. The observation wavelength range of the Sky Survey is 255~1000 nanometres, covering from, and visible light to near-infrared band. The optical module of the Sky Survey will not only fill the gap in my country’s space astronomical observation, but also achieve a resolution close to that of the Hubble Telescope and a field of view two orders of magnitude larger than that of the Hubble Telescope, and can quickly complete large-scale multicolour imaging and seamless spectral surveys. .

The superiority of the Sky Surveyor’s optical cabin is inseparable from its innovative design. In addition to a Cook-type off-axis three-reflection optical system with a diameter of 2 meters, the optical cabin also adds a folding mirror to facilitate switching between different optical loads, focusing, and precise image stabilization. The off-axis three-reflection is an excellent optical design. It is not only conducive to the realization of a large field of view, but also has no unavoidable optical path obstruction in the coaxial reflection optical system of the Hubble and Webb telescopes. Advantages, there is no diffraction problem caused by mirror support, and the optical imaging quality is higher. The Sky Survey Optical Module will also be the first space telescope in my country to use active optics. By actively adjusting the deformation of the secondary mirror, the imaging quality of the telescope can be further improved.

In addition, the optical module of Tian Xun can not only fly autonomously, but also has high attitude adjustment accuracy, and also has the ability to actively rendezvous and dock the space station. It can receive propellant replenishment while docked at the space station, and maintain, repair and upgrade equipment. Compared with the Hubble Space Shuttle that needs to be launched for every maintenance, the co-orbit flight of the Sky Surveyor’s optical module and the orbit maintenance design of the space station have better maintenance efficiency and cost-effectiveness.

In addition, the optical cabin also has the ability to survey the sky and land, and can be used as a remote sensing satellite. This design concept is a world first.

According to the plan, the optical module and the space station will fly in the same orbit, which is mainly used for astronomical observation, taking into account the ability to observe the earth. It can provide a sky survey observation capability with a resolution roughly equivalent to that of the Hubble telescope but with a field of view more than 300 times larger. The performance of the optical system is also one of the few in the world’s new generation of space telescopes. In addition, the sensor of the optical module is also remarkable. It is equipped with five payloads, including a sky survey camera, an integral field of view spectrometer, a multi-channel imager, an exoplanet imaging coronagraph, and a terahertz receiver. In addition to the fast survey capabilities of the exoplanet imaging coronagraph, it also adds the ability to detect and study exoplanets.

The main task of the optical module of the Sky Survey is to survey the sky. The researchers plan to conduct multi-color imaging observations of 17,500 square degrees, as well as seamless spectral observations in the same sky area, as well as 400 square degrees of multi-color imaging deep-field observations. and seamless spectral deep-field observations in the same sky region.

In addition, it will also study the formation and evolution of cosmic celestial bodies through observations of galaxies and active galactic nuclei, as well as nearby universes and stars. It can also be used to observe a large number of faint and small celestial bodies in the solar system, as well as observe and study transient sources. In the next 10 years of sky survey and observation missions, the sky survey optical module is expected to rely on its excellent performance to observe and analyze and reveal the mechanism of the accelerated expansion of the universe, and even bring unexpected major scientific discoveries.

Images and visuals are from their respectives.

#AlreadyTomorrowInHongKong #HongKongSpaceMuseum #香港太空館 #香港 #DiscoverHongKong | The newly acquired #Nishimura #SolarTelescope array in which you can view safely…

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Hong Kong Space Museum – Tsim Shan Tsui.

In Already Tomorrow In Hong Kong after a short two year duration of renovations at the Hong Kong Space Museum located in at 10 Salisbury Rd, Tsim Sha Tsui, Hong Kong in which leading up towards two hundred exhibits from One Hundred in which consisting on Thirty two million Hong Kong Dollars (USD 4.1 Million- NZD 8.2 Million) in which re-open on 25th April 2018… in which the displays are made more interactive than the ones that was previously exhibited in which gives the visitors more an understanding about space sciences, Astronomy with more interactive, animated exhibits …

Hong Kong Space Museum – Nishimura – Solar Telescope array

Is recently addition towards the Hong Kong Space Museum is the installation of a multiple array   solar scope in which is manufactured by Nishimura Co.Ltd.. In which is manufactured in Japan Kyoto… in which they do manufacture and sell extremely high graded research telescopes towards research, educationally…

Hong Kong Space Museum All Sky – Looking dome wise of Tsim Sha Tsui..

 

Hong Kong Space Museum – Solar Telescope Hydrogen filter..

The Solar Telescope array is installed on top of the Hong Kong Space Museum flat roof top location in which is situated on top, not on the International Iconic Dome section of the museum… The flat top location is also where they do night time starry night sky telescope viewing from … The Solar Scope array unit is composited of four telescopes, 白光影像 White Light Images,  氫α影像 Hydrogen Alpha Images, 鈣-K影像 Calcium K Images, 全天影像 All-Sky Images….  In which can be viewed live indoors at the exhibition hall through its individual large round screens.. in which shows different spectra of the sun’s surface layer the Alpha depicted the hydrogen colour of the sun, the Calcium K spectra depicts looking at the cooler layer of the sun..  In which you can view the Hong Kong Space Museums Solar Scope online as it refreshes the image.. every