香港天文學會 | |
Abbreviation | HKAS |
---|---|
Predecessor | Hong Kong Amateur Astronomical Union (AAU) |
Formation | 1974 |
Type | Nonprofit organization |
Purpose | Popularize astronomical knowledge, enhance astronomical research and promote cooperation among members |
Headquarters | Kwun Tong, Kowloon |
Location |
|
Official language | Chinese |
President | Yu Kam Fung |
Website | https://www.hkas.org.hk |
Formerly called | Hong Kong Amateur Astronomical Society (AAS) |
The Hong Kong Astronomical Society (HKAS) is the first public Hong Kong astronomical body, for amateur astronomers and other interested individuals. The primary objectives of the HKAS are to promote popular science of astronomy and other related sciences; raise public awareness of astronomy and other related topics such as light pollution; offer astronomical seminars, and provide astronomical training courses to schools and companies.
Current mission of the society is to enhance and share humanity's scientific understanding of the universe as a diverse and inclusive astronomical community.
In 1970, a group of secondary school students established Hong Kong Amateur Astronomical Union (AAU)... [1] [2] which was then renamed and registered as Hong Kong Amateur Astronomical Society (AAS) [3] in 1974, [2] the predecessor of HKAS, under the Cap. 151 Societies Ordinance of Hong Kong. [4]
In 1992, Hong Kong Amateur Astronomical Society was renamed as the current name, [5] to facilitate its property of overseas exchange.
Until 1974, AAU published a single-sheet stencil-printed leaflet titled "Astronomy Information" which distributed to members and astronomy clubs in secondary schools. The Society also strove to raise fellow members' standard in astronomy systematically by compiling lecture notes as well as organizing public lectures on basic astronomy. [2]
In 1974, the AAS and Sky Observers' Association (HK) jointly published the "Hong Kong Astronomical Journal" which was available for public subscription, which conveys astronomical news and information for fellow amateurs and members of public, and the society solely published the journal two years later. 34 issues were distributed and the circulation of the journal peaked at over 1,000 in total. In 1981, the Society terminated the journal's publication. [2]
In 1977, HKAS was invited to write a monthly column on astronomy in Wah Kiu Yat Po, a local Chinese newspaper, until the newspaper was sold to South China Morning Post in 1991. [6]
In 1978, the society published "Lunar Eclipse Handbook" which can be purchased publicly. [2] [1]
In 1998, the Hong Kong Commercial Daily invited HKAS to write for the paper's monthly astronomy column, to spread astronomical knowledge, news and information to general public. [7]
In 1975, AAS organized the first local astrophotographic competition with the winning and participating entries exhibited at the "Astrophotographic Exhibition" at the High Block of Hong Kong City Hall to raise public interest in astronomy. More than 10,000 people attended this exhibition, which was the first large-scale exhibition on astronomy in the territory. [1] [2]
In January 1977, AAS organized the First Hong Kong Astronomical Convention at Cheung Chau, [1] an outlying island with a large playground, for displaying numerous large and small telescopes including a small radio telescope called a corner reflector.
The Second Hong Kong Astronomical Convention was held by AAS in 1982 jointly with the Hong Kong Space Museum at the Sai Kung Bradbury Astronomy Camp. [1] [8]
In 1983, the AAS and RTHK launched a weekly radio programme about astronomy called "Cosmic Journey". [8] [1] The half-hour programme had 34 episodes and covered various astronomy topics.
In 1985, the AAS and RTHK cooperated again to present new broadcast programme "Cosmic Journey II". [8] [1]
In 1999, the HKAS and RTHK launched a new radio programme called "Unlimited Universe" [1] [7]
Astronomical Training Programme for Secondary Students, or ATPSS, is co-organised by the Hong Kong Space Museum, the Department of Physics of the Chinese University of Hong Kong and HKAS. It provides a comprehensive training in astronomy to local full-time Secondary 4 and Secondary 5 students. It aims to cultivate and promote students' interests in natural science [9]
HKAS has involved in a wide field survey research project held by Yunnan Astronomical Observatory in 2015. A 0.45m Wide Field telescope in a 4m dome [10] in Gaomeigu, Lijiang under the collaboration between both parties, and the society assisted in fine-tuning, field testing of the observation system; and performing observational researches such as "A New Magnetically Active Binary System Discovered in Yunnan-Hong Kong Wide Field Survey [11] "
In 1994, International Occultation and Timing Association (IOTA) authorized the Occultation Timing Section of the HKAS to compute and dispatch predictions of occultation events to Greater China (including Mainland China, Hong Kong, Macau, Taiwan), India, Mongolia and Southeast Asia countries such as Singapore, Philippines, Vietnam, Malaysia. [1]
Among other Hong Kong astronomical institutions, HKAS is a supporter of IAU's activities. The society supported IAU100 Name ExoWorlds event held by IAU Office of National Outreach to select name of star and planet in HD 212771. [12] [13]
In 2007, the society created the public online forum for, and the society's Lunar Occultation Section resumed dissemination of planetary occultation information at its own Occultation Forum.
In 2009, the society established its own Facebook page and group, whereas the Lunar Occultation Section had its own Facebook page in July 2017.
The Hong Kong Astronomy mobile application for iOS devices was launched at Apple App Store on 19 May 2012.
The Apps provided daily astronomy and space-related news, observational information, astronomical activities, regional night sky conditions, 16-day weather forecast, cloud coverage forecast, moon phase, sunrise, sunset, moonrise, moonset, and other relevant information.
The Android version was launched on 13 July 2014 whereas the Windows Phone version was launched on 31 August 2014. Apart from local users, the Apps encompasses users in mainland China, Macau, Taiwan and overseas Chinese.
In 2017, the Hong Kong Astronomy Apps was awarded as a Meritorious Healthy Apps For Mobile Phone and Tablet Users chosen by the Office for Film, Newspaper and Article Administration of HKSAR Government [14]
Thuban, with Bayer designation Alpha Draconis or α Draconis, is a binary star system in the northern constellation of Draco. A relatively inconspicuous star in the night sky of the Northern Hemisphere, it is historically significant as having been the north pole star from the 4th to 2nd millennium BC.
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Eta Virginis is a triple star system in the zodiac constellation of Virgo. From parallax measurements, it is about 246 light-years from the Sun. It has a combined apparent visual magnitude of 3.89, bright enough to be seen with the naked eye in dark skies.
Epsilon Geminorum or ε Geminorum, formally named Mebsuta, is a star in the constellation of Gemini, on the outstretched right 'leg' of the twin Castor. The apparent visual magnitude of +3.06 makes it one of the brighter stars in this constellation. The distance to this star is determined at 860 light-years.
Beta Virginis, a name Latinised from β Virginis, is a star in the equatorial constellation of Virgo. It has the proper name Zavijava, and, despite its designation 'beta', is the fifth-brightest star in Virgo with an apparent visual magnitude of 3.604. The distance to this star is around 35.7 light-years based on parallax; it is drifting further away with a radial velocity of +4.1 km/s. It is 0.69 of a degree north of the ecliptic, so it can be occulted by the Moon and (rarely) by planets. The next planetary occultation of Beta Virginis will take place on 09 november 2210, by Venus.
Mu Geminorum or μ Geminorum, formally named Tejat, is a single star in the northern constellation of Gemini. From parallax measurements obtained during the Hipparcos mission, it is roughly 230 light-years distant from the Sun. The position of the star near the ecliptic means that it is subject to lunar occultations.
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Theta Aquarii, officially named Ancha, is a star in the equatorial constellation of Aquarius. Visible to the naked eye at apparent magnitude 4.175, it is located at a distance of around 187 light-years from the Sun. Since it is near the ecliptic it can be occulted by the Moon, or very rarely by planets.
Delta Capricorni, or δ Capricorni, is a binary star located 38.7 light-years from the Sun in the constellation of Capricornus. The system consists of an eclipsing binary, Delta Capricorni A, and two visual companions that are over 10 magnitudes fainter, labeled B and C. Delta Capricorni A's two components are designated Delta Capricorni Aa and Ab. The primary star, Aa, is a white giant and the combined light of Aa and Ab makes it the brightest star in the constellation.
Mu1 Scorpii (μ1 Scorpii, abbreviated Mu1 Sco, μ1 Sco) is a binary star system in the southern zodiac constellation of Scorpius. The combined apparent visual magnitude of the pair is about magnitude 3, making it one of the brighter members of Scorpius. Based upon parallax measurements, the distance of this system from the Sun is roughly 500 light-years (150 parsecs). This system is a member of the Scorpius–Centaurus association, the nearest OB association of co-moving stars to the Sun.
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