What kind of equipment and techniques are used by amateur astronomers? What are some notable amateur astronomical discoveries?

Uranus · See this term in other languages. Term and definition status: This term and its definition have been approved by a research astronomer and a teacher. A solar eclipse happens when the Moon passes between the Sun and Earth, casting a shadow on Earth that either fully or partially blocks the Sun's light in some ... ... informational recommendations to administrators and directors. By fulfilling the program requirements, students are prepared for entry level positions. Some ... Oct 29, 2020 ... In a landmark series of calculations, physicists have proved that black holes can shed information, which seems impossible by definition. Dec 18, 2020 ... It contains the full UAT organized into a hierarchy, but now it contains a lot more information about each concept, including definitions, other ... Cite. Support your answer with evidence or examples. This could involve referencing specific facts, data, quotations, or other sources of information that ... Definitions. For more information on the terms used, see the Astronomical Almanac Glossary , or the Rise, Set, Transit, and Twilight Definitions, and the ... Subjects. Conservation, Earth Science, Astronomy. Image. Hong Kong Light ... For information on user permissions, please read our Terms of Service. If you ... It means that cognitive interest provides search, creative character of educational activity in any form. Homework should help to increase cognitive activity, ... Astronomers define this distance as one astronomical unit (AU), a measure that serves as a handy cosmic yardstick. Earth rotates on its axis every 23.9 ...