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Green Point Observatory
Green Point Observatory is a private astronomical observatory in Oyster Bay, Sydney, Australia, and it is the home of the Sutherland Astronomical Society. It is located at the corner of Green Point and Caravan Head Roads. It consists of a dome, a roll-off roof observatory, a library, and a meeting hall seating 100 people. The dome and observatory house two large telescopes: a Newtonian telescope and a Schmidt–Cassegrain telescope. The observatory is used by members of the society for observing stars and eclipses, research, astro imaging as well as hosting public education courses and monthly open nights. The observatory was first constructed on the site, completed in 1969 following the founding of the Sutherland Astronomical Society, then known as the James Cook Astronomers Club. At that time, the observatory consisted of a dome housing a Newtonian telescope and small library. The telescope was made by members of the Society, and it is named in honour of Keith Selby, wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Green Point Observatory From East
Green is the color between cyan and yellow on the visible spectrum. It is evoked by light which has a dominant wavelength of roughly 495570 nm. In subtractive color systems, used in painting and color printing, it is created by a combination of yellow and cyan; in the RGB color model, used on television and computer screens, it is one of the additive primary colors, along with red and blue, which are mixed in different combinations to create all other colors. By far the largest contributor to green in nature is chlorophyll, the chemical by which plants photosynthesize and convert sunlight into chemical energy. Many creatures have adapted to their green environments by taking on a green hue themselves as camouflage. Several minerals have a green color, including the emerald, which is colored green by its chromium content. During post-classical and early modern Europe, green was the color commonly associated with wealth, merchants, bankers, and the gentry, while red was r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
