Every place on Earth, must have its own astronomical layout. Recent earthquakes in the world however, there are still many people who do not quite understand about the location of astronomical. Therefore, in this article Learning in Geography will explain fully and clearly. Definition of astronomical layout itself is a form of point coordinates that happens for a place associated with the position of latitude and longitude.
Definition of latitude are lines on a globe parallel to the equator (the equator). Thus, the northern latitudes (LU) mean position or a place situated in the north of the equator (the equator), and southern latitude (LS) mean position or a place that is located south of the equator. Of the distance between the latitude is measured in degrees. The lowest is 0 ° latitude (the equator) and the highest latitude is 90 ° (north pole and south pole).
Meanwhile, the definition of longitude (meridians) are lines connecting the north pole and a south pole. Position perpendicular to the line of latitude. In general, all meridians large semicircular. Just like latitude, longitude distance was measured in degrees. Lots of longitude that can be drawn, but that is not too tight then, made every 15 °.
For Indonesia itself, the location of the gari astronomical latitude is 6 ° N – 11 ° S. Meanwhile, the location of the longitude is 95 ° E – 141 ° E. To understand more about the meaning and intent of astronomical layout, let us see explanation below:
Based on the location of the astronomical, Indonesia is located in the tropical climate. Tropical climate zones are in between 23.5 ° N or tropic of Cancer, and 23.5 ° S or tropic of Capricorn. This is what makes Indonesia a fairly high temperature, between 26 ° – 28 ° C. Rainfall is quite a lot, between 700-7000 mm / year. In addition, the weathering process is also quite fast. The tropical climate was also led to the presence of various types of animal and plant species in Indonesia.
Location of astronomical longitudes to affect one location in terms of time. Because of the location of the longitude of sufficient width (ie about 46 °), then Indonesia has 3 different time zone. The division of the first time zone set on January 1, 1964. However, on January 1, 1988, in Indonesia has enacted a new regional division. After the entry into force of the new regional breakdown, the shift time in some places.
Here also the division of time zones in Indonesia today:
- Western Indonesia time zone (GMT)
GMT is based on the base meridian 105 BT. Covering all provinces in Sumatra, Java, West Kalimantan and Central Kalimantan Province (difference time 7 hours ahead of Greenwich time)
- Central part of Indonesia time zone (PST)
WITA is based on the base meridian 120 BT, covering all provinces in East Kalimantan, South Kalimantan, Bali, NTT, NTB, and all provinces in Sulawesi (time difference 8 hours ahead of Greenwich time)
- Regions Eastern Indonesia time (WIT)
WIT is based on the base meridian 135 BT, covering the whole province of Irian Jaya (Papua), Maluku and North Maluku (the difference in time of 9 hours ahead of Greenwich time)
Now that’s an explanation and understanding of astronomical layout. May be useful!