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Saturn opposition day 2019 is coming! When can I see it

in the early morning of the recent day, Saturn's opposition to the sun will be staged in the night sky. If the weather is clear, it can be seen all over China and even most parts of the world.

Saturn's opposition to the sun means that there is a 180 degree difference between Saturn and the sun's right ascension. At this time, Saturn, the earth and the sun are arranged in an approximate straight line. During Saturn's opposition to the sun, Saturn can be seen all night. Saturn is closest to the earth, Saturn is the brightest, and the observation time is the best.

Saturn ranks second in diameter among the eight planets in the solar system, second only to Jupiter. Saturn's biggest feature is that its density is the smallest of the eight planets, only 0.69 (the density of water is 1 gram per cubic centimeter), which is 31% smaller than that of water. If there is an infinite ocean, Saturn can float on the water and drift with the waves.

Saturn recently retrograded from east to West in Sagittarius, with an apparent brightness of 0.1 magnitude, brighter than Altair, but slightly darker than Vega. Bright Jupiter can be found not far west of Saturn. Jupiter's apparent brightness is minus 2.5 magnitude, which is more eye-catching than Sirius, the brightest star in the night sky.

In the field of view of a large telescope, Saturn looks like a straw hat because of its rings. Saturn has 62 moons, of which Titan is larger in diameter than the earth's moon. Titan can be observed with a 200 mm telescope. " Titan's apparent brightness can reach 8.6 magnitude, slightly darker than Neptune.