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What is important about the Tropic of Cancer and Tropic of Capricorn?

The Tropic of Cancer and the Tropic of Capricorn are the two most important latitude lines made, apart from the equator. They match the orientation of the Earth’s rotational axis to the ecliptical plane around the sun.

Why Tropic of Capricorn is called so?

Previously, however, it appeared in the constellation Capricornus at the winter solstice—hence the name Tropic of Capricorn. Because of the gradual change in the direction of Earth’s axis of rotation, the Sun will reappear in the constellation Capricornus in approximately 24,000 years.

How much the Earth is tilted?

Today, the Earth’s axis is tilted 23.5 degrees from the plane of its orbit around the sun. But this tilt changes. During a cycle that averages about 40,000 years, the tilt of the axis varies between 22.1 and 24.5 degrees.

What if Earth was tilted at 45 degrees?

If the earth had an axis tilted at 45° degrees to its orbit of the sun the seasons would be more extreme but also mor polar centric. Some places on Earth would be in night for weeks or months and others would be in perpetual light for as long. The ice caps would likely have melted a long time ago.

What would happen if the Earth’s tilt changed?

But if Earth’s axis tilted to 90 degrees, extreme seasons would cause intense climate change on every continent. During the summer, the Northern Hemisphere would experience nearly 24 hours of sunlight for months, which could melt ice caps, raise sea levels, and flood coastal cities.

Can we live on the sun?

The Sun itself is not a good place for living things, with its hot, energetic mix of gases and plasma. But the Sun has made life on Earth possible, providing warmth as well as energy that organisms like plants use to form the basis of many food chains.

What would life be like with two suns?

All water on our planet would be frozen, and no life would have formed thanks, also, in part to Earth being farther from the sun than 16b is to its star system [source: Wolchover]. Sounds like an Earth with two suns wouldn’t be nearly as livable as Tatooine — even without the Sand People.

Does our Sun have a sister star?

The star is considered to be a stellar sibling of the Sun and is the first such sibling to be discovered. Solar siblings are those stars that formed from the same gas cloud and in the same star cluster; the term was introduced in 2009.