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 Cosmology
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Selected image -
Cassiopeia A (Cas A) is a supernova remnant in the constellation Cassiopeia and the brightest extrasolar radio source in the sky at frequencies above 1 GHz. The supernova occurred approximately 11,000 light-years (3.4 kpc) away in the Milky Way.
Astronomy News
2024 in space | ||
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Space probe launches  |
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| Impact events | ||
| Selected NEOs | ||
| Discoveries |
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| 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)
June anniversaries
- 2 June 1966 – Surveyor 1 lands on the moon, first US spacecraft to do so
- 3 June 1966 – Gemini 9(Gemini Titan 9A) launch from Cape Canaveral, Florida
- 19 June 1976 – The Viking 1 orbiter arrives in Mars orbit
- 24 June 2004 – First private spaceflight, SpaceShipOne piloted by Mike Melvill
- 27 June 1996 – Galileo probe, flyby of Ganymede (Jupiter's largest moon)
- 30 June 2001 – The Microwave Anisotropy Probe), is launched to measure the temperature of cosmic background radiation (remnant heat from the Big Bang)
Astronomical events
All times UT unless otherwise specified.
| 1 June, 02:54 | Moon occults Neptune |
| 2 June, 07:23 | perigee
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| 4 June, 15:12 | Venus at superior conjunction; occultation |
| 6 June, 12:38 | New moon |
| 14 June, 13:36 | apogee
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| 14 June, 16:15 | Mercury at superior conjunction |
| 20 June, 20:51 | Earth northern solstice |
| 22 June, 01:08 | Full moon |
| 27 June, 11:45 | perigee
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| 27 June, 15:00 | Moon occults Saturn |
| 28 June, 08:58 | Moon occults Neptune |
Topics
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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
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