... Tonight's Sky . ... Observing . ... Product Reviews . ... Opportunityт??s devilish view from on high . ... Sky Events . ... Cassini flies high to view Saturn's rings again . ... These three Cassini images show a propeller-shaped structure created by an unseen moon in Saturn's A ring. ... It's been nearly two years since NASA's Cassini spacecraft has had views like those it is now enjoying of Saturn's glorious rings. ... Only registered members of Astronomy.com are allowed to comment on this article....

... Astronomy . ... Requires various plug-ins to your browser to work right. [m,h] (A simpler version of this activity, to be done with printed paper versions of the image, can be found at: www.jpl.nasa.gov/galileo/sepo/educaton/europa/puzzle.html ) . ... Interesting activity, in which students use an inexpensive "stream tray" to simulate the flow of water on sandy terrain, compare their results to features seen in martian images, and then try to replicate some of the features seen on Mars. ...

... Physical conditions in the observable atmosphere of the brown dwarf Gl 229B are intermediate between those found in a giant planet atmosphere, such as Jupiter's, and a stellar atmosphere. In one important respect, however, Gl 229B shares kinship with giant planet atmospheres: temperatures in the observable atmosphere are cool enough that the gas is essentially completely molecular. ... The carbon monoxide (CO) 1-0 fundamental also falls in this spectrum interval. ...

... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... Meade Series 4000 Color Filter Set #2 . ... Meade Series 4000 Color Filter Set #2 #07529. Meade Series 4000 Color Filters permit observation and photography of planetary surface detail that is often virtually invisible without filtration. ... The Series 4000 Color Filter Set #2 includes the following filters: . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Planets . ... Of the worlds in our Solar System (gas giants excluded) only Venus has a completely ice-free surface. ... The continued melting of polar ice and consequent freshening of the waters of the Arctic Ocean might stop some ocean currents €аaffecting the lives of hundreds of millions of people.€а Studying the ice worlds of space helps us understand the part that ice has played in the history of our own planet and our present day existence on it. ...

ATNF Home . ... About ATNF overview . News | ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Information & tools for observers . ... ATCA | ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Using a special technique, a network of 17 radio telescopes in Australia, the USA, China and Japan will attempt to determine its entry point to within a kilometre. ...

... The Stellar Oscillations Network Group (SONG) seeks to study p-mode (acoustic) oscillations in solar type stars. ... The observation of many solar-like stars will also help us to understand how solar p-modes are excited and damped. ... Naively, the two or three orders of magnitude improvement over this provided by the normal 1 second time resolution of the KPNO CCD cameras should be quite sufficient for such a detection. ... Figure: Non-cadenced data-a free-running observing sequence. ...

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. Введение . Камеры . R . 2000 . 20000 . 200000 . Орбитальные . Проекты . История . Фотометры . Любительские . Обработка . Картинки . Телескопы . Адреса . Автор . Практикум . Астрономические спектрографы . Сотни астрономических спектрографов оптического, ИК и УФ -диапазонов. Камеры прямых изображений и фотометры. Работа поддержана РФФИ (проект 05-07-90087).