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Amateur astronomers watch the night sky during the Perseid meteor shower.. Amateur astronomy is a hobby where participants enjoy observing or imaging celestial objects in the sky using the unaided eye, binoculars, or telescopes.
An optical module from a neutrino telescope. Neutrino telescopes consist of hundreds to thousands of optical modules distributed over a large volume.
Astronomical Observatory, New South Wales, Australia 1873. Astronomy (from the Greek ἀστρονομία from ἄστρον astron, "star" and -νομία -nomia from νόμος nomos, "law" or "culture") means "law of the stars" (or "culture of the stars" depending on the translation).
Long before experiments could detect gamma rays emitted by cosmic sources, scientists had known that the universe should be producing them. Work by Eugene Feenberg and Henry Primakoff in 1948, Sachio Hayakawa and I.B. Hutchinson in 1952, and, especially, Philip Morrison in 1958 [6] had led scientists to believe that a number of different processes which were occurring in the universe would ...
A voting session is conducted in 2006 International Astronomical Union's general assembly for determining a new definition of a planet. An astronomer is a scientist in the field of astronomy who focuses on a specific question or field outside the scope of Earth.
Solar physics is the branch of astrophysics that specializes in the study of the Sun.It intersects with many disciplines of pure physics and astrophysics.. Because the Sun is uniquely situated for close-range observing (other stars cannot be resolved with anything like the spatial or temporal resolution that the Sun can), there is a split between the related discipline of observational ...
The most important applications are: Establishment of geodetic datum systems (e.g. ED50) or at expeditions; apparent places of stars, and their proper motions; precise astronomical navigation
Astronomy & Astrophysics (A&A) [1] is a monthly peer-reviewed scientific journal covering theoretical, observational, and instrumental astronomy and astrophysics.It is operated by an editorial team under the supervision of a board of directors representing 27 sponsoring countries plus a representative of the European Southern Observatory.