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51st Parallel South
The 51st parallel south is a circle of latitude that is 51 degrees south of the Earth's equatorial plane. It crosses the Atlantic Ocean, the Indian Ocean, the Pacific Ocean and South America. At this latitude the sun is visible for 16 hours, 33 minutes during the December solstice and 7 hours, 55 minutes during the June solstice. Around the world Starting at the Prime Meridian and heading eastwards, the parallel 51° south passes through: : See also * 50th parallel south *52nd parallel south The 52nd parallel south is a circle of latitude that is 52 degrees south of the Earth's equatorial plane. It crosses the Atlantic Ocean, the Indian Ocean, the Pacific Ocean and South America. The parallel defines part of the border between Arg ... References {{Reflist s51 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Circle Of Latitude
A circle of latitude or line of latitude on Earth is an abstract east–west small circle connecting all locations around Earth (ignoring elevation) at a given latitude coordinate line. Circles of latitude are often called parallels because they are Parallel (geometry), parallel to each other; that is, planes that contain any of these circles never Intersection, intersect each other. A location's position along a circle of latitude is given by its longitude. Circles of latitude are unlike circles of longitude, which are all great circles with the centre of Earth in the middle, as the circles of latitude get smaller as the distance from the Equator increases. Their length can be calculated by a common sine or cosine function. The 60th parallel north or 60th parallel south, south is half as long as the Equator (disregarding Earth's minor flattening by 0.335%). On the Mercator projection or on the Gall-Peters projection, a circle of latitude is perpendicular to all meridian (geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prime Meridian
A prime meridian is an arbitrary meridian (a line of longitude) in a geographic coordinate system at which longitude is defined to be 0°. Together, a prime meridian and its anti-meridian (the 180th meridian in a 360°-system) form a great circle. This great circle divides a spheroid, like the Earth, into two hemispheres: the Eastern Hemisphere and the Western Hemisphere (for an east-west notational system). For Earth's prime meridian, various conventions have been used or advocated in different regions throughout history. The Earth's current international standard prime meridian is the IERS Reference Meridian. It is derived, but differs slightly, from the Greenwich Meridian, the previous standard. A prime meridian for a planetary body not tidally locked (or at least not in synchronous rotation) is entirely arbitrary, unlike an equator, which is determined by the axis of rotation. However, for celestial objects that are tidally locked (more specifically, synchronous), th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
50th Parallel South
The 50th parallel south is a circle of latitude that is 50 degrees south of the Earth's equatorial plane. It crosses the Atlantic Ocean, the Indian Ocean, the Pacific Ocean and South America. At this latitude the sun is visible for 16 hours, 22 minutes during the December solstice and 8 hours, 4 minutes during the June solstice. On December 21, the sun is at 63.83 degrees in the sky and on June 21, the sun is at 16.17 degrees in the sky. During the summer solstice, nighttime does not get beyond astronomical twilight, a condition which lasts throughout the month of December. Everyday of the month of November can view both astronomical dawn and dusk. The maximum altitude of the Sun is > 25.00º in April and > 18.00º in May. Around the world Starting at the Prime Meridian and heading eastwards, the parallel 50° south passes through: : See also *49th parallel south The 49th parallel south is a circle of latitude that is 49 degree (angle), degrees south of the Earth, Earth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jason Islands
The Jason Islands (Spanish: ''Islas Sebaldes'') are an archipelago in the Falkland Islands, lying to the far north-west of West Falkland. Three of the islands, Steeple Jason, Grand Jason and Clarke's Islet, are private nature reserves owned by the Wildlife Conservation Society of New York City. Other islands in the group are National Nature Reserves owned by the Falkland Islands Government. Geography The islands include Steeple Island, Grand Island, Elephant Island, Flat Island and South Island. *Steeple Jason Island runs south-east to north-west. A narrow neck of land breaks the island into two sections, both with steep slopes on both sides. The northern point has a wide low plateau which is an important area for breeding seabirds. *Grand Island, the largest of the group, has a varied terrain with steep cliffs and high plateaux with gullies. There are tussac-covered slopes facing west and south, with severely eroded areas, especially at the northern, south-eastern and we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Santa Cruz Province, Argentina
Santa Cruz Province ( es, Provincia de Santa Cruz, , 'Holy Cross') is a province of Argentina, located in the southern part of the country, in Patagonia. It borders Chubut Province to the north, and Chile to the west and south, with an Atlantic coast on its east. Santa Cruz is the second-largest province of the country (after Buenos Aires Province), and the least densely populated in mainland Argentina. The indigenous people of the province are the Tehuelches, who despite European exploration from the 16th century onwards, retained independence until the late 19th century. Soon after the Conquest of the Desert in the 1870s, the area was organised as the Territory of Santa Cruz, named after its original capital in Puerto Santa Cruz. The capital moved to Rio Gallegos in 1888 and has remained there ever since. Immigrants from various European countries came to the territory in the late 19th and early 20th century during a gold rush. Santa Cruz became a province of Argentina in 1957. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magallanes Region
The Magallanes Region (), officially the Magallanes y la Antártica Chilena Region ( es, Región de Magallanes y de la Antártica Chilena), is one of Chile's 16 first order administrative divisions. It is the southernmost, largest, and second least populated region of Chile. It comprises four provinces: Última Esperanza, Magallanes, Tierra del Fuego, and Antártica Chilena. Magallanes's geographical features include Torres del Paine, Cape Horn, Tierra del Fuego island, and the Strait of Magellan. It also includes the Antarctic territory claimed by Chile. Despite its large area, much of the land in the region is rugged or closed off for sheep farming, and is unsuitable for settlement. 80% of the population lives in the capital Punta Arenas, a major market city and one of the main hubs for Antarctic exploration. The main economic activities are sheep farming, oil extraction, and tourism. It is also the region with the lowest poverty level in Chile (5.8%); households in Magalla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archipelagoes Of Patagonia
The landmass known as Patagonia hosts a series of archipelagoes, all of them located on its western and southern coast. These archipelagoes, with the exception of Tierra del Fuego (which is shared with Argentina), lie in Chile and in the Pacific Ocean, covering about one third of Chile's coast. The United States Hydrographic Office, stated in its South America Pilot (1916): ''The Patagonian Archipelago, the range of islands lying west of Tierra del Fuego and stretching along the western coast of Patagonia for 11° of latitude north of the western entrance to Magellan Strait, is about as inhospitable a land as is to be found in the globe, especially in its more southern parts. The land is mountainous, presenting an alternation of matted forest, bare rock, and deep bogs, and is cut up by deep channels into peninsulas and islands whose forms are yet very imperfectly known. Drenching rains, varied by snow and sleet, prevail throughout the year, while furious westerly gales succeed each ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auckland Islands
The Auckland Islands (Māori: ''Motu Maha'' "Many islands" or ''Maungahuka'' "Snowy mountains") are an archipelago of New Zealand, lying south of the South Island. The main Auckland Island, occupying , is surrounded by smaller Adams Island, Enderby Island, Disappointment Island, Ewing Island, Rose Island, Dundas Island, and Green Island, with a combined area of . The islands have no permanent human inhabitants. The islands are listed with the New Zealand Outlying Islands. The islands are an immediate part of New Zealand, but not part of any region or district, but instead ''Area Outside Territorial Authority'', like all the other outlying islands except the Solander Islands. Ecologically, the Auckland Islands form part of the Antipodes Subantarctic Islands tundra ecoregion. Along with other New Zealand Sub-Antarctic Islands, they were designated a UNESCO World Heritage Site in 1998. Geography The Auckland Islands lie south of Stewart Island, and from the South Islan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adams Island, New Zealand
Adams Island is the second largest island of New Zealand's Auckland Islands archipelago. Geography The southern end of Auckland Island broadens to a width of where a narrow channel, known as Carnley Harbour or the Adams Straits, separates it from the roughly triangular Adams Island (area approximately ), which is even more mountainous, reaching a height of at Mount Dick. The channel is the remnant of the crater of an extinct volcano, with Adams Island, and the southern part of Auckland Island forming the crater rim. Two large indentations, Bolton's Bay and Fly Harbour, are the most prominent features of the island's south coast, both in the south east. Important Bird Area The island is part of the Auckland Island group Important Bird Area (IBA), identified as such by BirdLife International because of the significance of the group as a breeding site for several species of seabirds as well as the endemic Auckland shag, Auckland teal, Auckland rail and Auckland snipe.BirdLife ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Winter Solstice
The winter solstice, also called the hibernal solstice, occurs when either of Earth's poles reaches its maximum tilt away from the Sun. This happens twice yearly, once in each hemisphere ( Northern and Southern). For that hemisphere, the winter solstice is the day with the shortest period of daylight and longest night of the year, when the Sun is at its lowest daily maximum elevation in the sky. Either pole experiences continuous darkness or twilight around its winter solstice. The opposite event is the summer solstice. The winter solstice occurs during the hemisphere's winter. In the Northern Hemisphere, this is the December solstice (usually 21st or 22nd December) and in the Southern Hemisphere, this is the June solstice (usually 20th or 21st of June). Although the winter solstice itself lasts only a moment, the term also refers to the day on which it occurs. The term midwinter is also used synonymously with the winter solstice, although it carries other meanings as we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Degree (angle)
A degree (in full, a degree of arc, arc degree, or arcdegree), usually denoted by ° (the degree symbol), is a measurement of a plane (mathematics), plane angle in which one Turn (geometry), full rotation is 360 degrees. It is not an SI unit—the SI unit of angular measure is the radian—but it is mentioned in the SI Brochure, SI brochure as an Non-SI units mentioned in the SI, accepted unit. Because a full rotation equals 2 radians, one degree is equivalent to radians. History The original motivation for choosing the degree as a unit of rotations and angles is unknown. One theory states that it is related to the fact that 360 is approximately the number of days in a year. Ancient astronomers noticed that the sun, which follows through the ecliptic path over the course of the year, seems to advance in its path by approximately one degree each day. Some ancient calendars, such as the Iranian calendar, Persian calendar and the Babylonian calendar, used 360 days for a year. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Summer Solstice
The summer solstice, also called the estival solstice or midsummer, occurs when one of Earth's poles has its maximum tilt toward the Sun. It happens twice yearly, once in each hemisphere ( Northern and Southern). For that hemisphere, the summer solstice is the day with the longest period of daylight and shortest night of the year, when the Sun is at its highest position in the sky. Within the Arctic circle (for the Northern hemisphere) or Antarctic circle (for the Southern), there is continuous daylight around the summer solstice. The opposite event is the winter solstice. The summer solstice occurs during summer. This is the June solstice (usually 20 or 21 June) in the Northern hemisphere and the December solstice (usually 21 or 22 December) in the Southern. On the summer solstice, Earth's maximum axial tilt toward the Sun is 23.44°. Likewise, the Sun's declination from the celestial equator is 23.44°. Since prehistory, the summer solstice has been seen as a significant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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