Portal:Astronomy
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The Astronomy Portal
Introduction
Astronomy is one of the oldest natural sciences. The early civilizations in Greeks, Indians, Chinese, Maya, and many ancient indigenous peoples of the Americas. In the past, astronomy included disciplines as diverse as astrometry, celestial navigation, observational astronomy, and the making of calendars .
Professional astronomy is split into observational and theoretical branches. Observational astronomy is focused on acquiring data from observations of astronomical objects. This data 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. These two fields complement each other. Theoretical astronomy seeks to explain observational results and observations are used to confirm theoretical results. Astronomy is one of the few sciences in which amateurs play an transient events. Amateur astronomers have helped with many important discoveries, such as finding new comets. (Full article... )
General images -The following are images from various astronomy-related articles on Wikipedia.
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| WikiProject Astronomy | WikiProject Solar System
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WikiProject Cosmology
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WikiProject Spaceflight |
Selected image -
The Eskimo Nebula (NGC 2392), also known as the Clown-faced Nebula, Lion Nebula or Caldwell 39, is a bipolar planetary nebula (PN) discovered by astronomer William Herschel in 1787. Image of NGC 2392, the Eskimo Nebula is by HST in 1999.
Astronomy News
2024 in space | ||
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Space probe launches  |
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| Impact events | ||
| Selected NEOs | ||
| Discoveries | ||
| Comets | ||
- 20 February 2024 –
- Astronomers identify the most luminous object ever observed, QSO J0529-4351, a quasar that accretes around one solar mass per day. (The Guardian) (Nature.com)
- 24 November 2023 –
- EeV. (Cosmos Magazine)
April anniversaries
- 2 April 1968 – The epic science fiction film, 2001: A Space Odyssey is released
- 3 April 2014 – NASA announces that the Cassini orbiter has found evidence of an underground body of water on Enceladus, a moon of Saturn
- 7 April 2001 – Mars Odyssey orbiter is launched to map and search for water on Mars
- 12 April 1961 – Cosmonaut Yuri Gagarin becomes the first human to enter outer space when he is launched into orbital flight in Vostok 1
- 19 April 1971 – The first space station, Salyut 1, is launched into orbit
- 24 April 1990 – The Hubble Space Telescope, a powerful research tool and public relations boon for astronomy, is launched into orbit
Astronomical events
All times UT unless otherwise specified.
| 6 April, 09:25 | Moon occults Saturn |
| 7 April, 08:11 | Moon occults Neptune |
| 7 April, 16:47 | Moon occults Venus |
| 7 April, 17:53 | perigee
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| 8 April, 18:18 | New moon and Total Solar Eclipse |
| 11 April, 22:53 | Mercury at inferior conjunction |
| 20 April, 02:09 | apogee
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| 22 April, 06:44 | Lyrids peak |
| 23 April, 23:49 | Full moon |
Topics
| Astronomy by |
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Subcategories
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Things you can do
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Here are some Open Tasks :
Astronomy featured article candidates :
Astronomy articles for which peer review has been requested:
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Wikibooks
These books may be in various stages of development. See also the related Science and Mathematics bookshelves.
- Astronomy
- GAT: A Glossary of Astronomical Terms
- Introduction to Astrophysics
- General relativity
- Observing the Sky from 30°S
- Observing the Sky from 40°N
Wikijunior
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Wiktionary
Dictionary and thesaurus
