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）
