Circles of latitude between the 45th parallel south and the 50th parallel south

, the 46th parallel south defines the border between Chubut Province and Santa Cruz Province. The 46th parallel south is a circle of latitude that is 46 degrees south of the Earth's equatorial plane. It crosses the Atlantic Ocean, the Indian Ocean, Australasia, the Pacific Ocean and South America. At this latitude the sun is visible for 15 hours, 45 minutes during the December solstice and 8 hours, 38 minutes during the June solstice. This holds true regardless of longitude. The largest city south of the 46th parallel is Punta Arenas. Around the world Starting at the Prime Meridian and heading eastwards, the parallel 46° south passes through: : ==47th parallel south==

The 47th parallel south is a circle of latitude that is 47 degrees south of the Earth's equatorial plane. It crosses the Atlantic Ocean, the Indian Ocean, Australasia, the Pacific Ocean and South America. At this latitude, the sun is visible for 15 hours and 54 minutes during the December solstice and 8 hours and 30 minutes during the June solstice. This holds true regardless of longitude. Around the world Starting at the Prime Meridian and heading eastwards, the parallel 47° south passes through: : ==48th parallel south==

The 48th parallel south is a circle of latitude that is 48 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, 3 minutes during the December solstice and 8 hours, 22 minutes during the June solstice. If the latitude in the southern hemisphere is 48º50' or smaller, it is possible to view both astronomical dawn and dusk every day of the month of January. At the latitude of 48°33′38.58804” South, which is about 62.3 km (38.7 mi) south of this parallel, is the parallel where twilight/nighttime boundary on the December Solstice. Around the world Starting at the Prime Meridian and heading eastwards, the parallel 48° south passes through: : ==49th parallel south==

The 49th parallel south is a circle of latitude that is 49 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, 13 minutes during the December solstice and 8 hours, 14 minutes during the June solstice. This latitude also roughly corresponds to the minimum latitude in which astronomical twilight can last all night near the summer solstice. All-night astronomical twilight lasts about from December 11 to January 1 of the following year. At midnight on the summer solstice, the altitude of the sun is about −17.56°. Around the world Starting at the Prime Meridian and heading eastwards, the parallel 49° south passes through: : ==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, 23 minutes during the December solstice and 8 hours, 4 minutes during the June solstice. On December 21, the sun is at 63.44 degrees in the sky and on June 21, the sun is at 16.56 degrees in the sky. During the summer solstice, nighttime does not get beyond astronomical twilight, a condition which lasts throughout the month of December. It is possible to view both astronomical dawn and dusk every day of the month of November. The maximum altitude of the Sun is > 25.00º in April and > 18.00º in May. The 50th parallel is the northerly boundary of the Dependencies of the Falkland Islands, the southerly boundary being the 60th parallel south. Around the world Starting at the Prime Meridian and heading eastwards, the parallel 50° south passes through: : ==See also==