وصف
Astronomy is the scientific study of celestial objects and phenomena. It applies mathematics, physics, and chemistry, in an effort to explain the origin of those objects
and phenomena and their evolution. The objects of interest include planets, moons, stars, galaxies, and comets; while the phenomena include supernovae explosions, gamma
ray bursts, and cosmic microwave background radiation. More generally all astronomical phenomena that originate outside Earth's atmosphere is within the perview of
astronomy. A related but distinct subject, physical cosmology, is concerned with the study of the Universe as a whole.
Astronomy is the oldest of the natural sciences. The early civilizations in recorded history, such as the Babylonians, Greeks, Indians,Egyptians, Nubians, Iranians,
Chinese, and Maya performed methodical observations of the night sky. Historically, astronomy has included disciplines as diverse as astrometry, celestial navigation,
observational astronomy and the making of calendars, but professional astronomy is now often considered to be synonymous with astrophysics.
During the 20th century, the field of professional astronomy split into observational and theoretical branches. Observational astronomy is focused on acquiring data from
observations of astronomical objects, which is then analyzed using basic principles of physics. Theoretical astronomy is oriented toward the development of computer or
analytical models to describe astronomical objects and phenomena. The two fields complement each other, with theoretical astronomy seeking to explain the observational
results and observations being used to confirm theoretical results.
Astronomy is one of the few sciences where amateurs can still play an active role, especially in the discovery and observation of transient phenomena. Amateur astronomers
have made and contributed to many important astronomical discoveries, such as finding new comets.
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إصدارات قديمة
- 09/27/2022: Astronomy Wallpaper 1.1
- Report a new version
Free Download
تحميل بواسطة رمز الاستجابة السريعة
- اسم التطبيق: Astronomy Wallpaper
- لينة الفئة: تسلية
- كود التطبيق: com.wallpaper.picture.astronomywallpaper.beautiful.space.astronomyimages
- أحدث إصدار: 1.1
- الشرط المطلوب: 4.0 أو أعلى
- حجم الملف : 4.37 MB
- تحديث الوقت: 2022-09-27