Happy SUMMER SOLSTICE!
Today, June 20th, marks the 2008 Summer solstice (or Winter solstice for those of you South of Earth’s equator). This is the first time since 1896 - 112 years - that the summer solstice in the Northern Hemisphere has occurred before June 21. To kick off the official summer season, we at TrekMovie have provided a list of 10 facts surrounding the Summer Solstice.
- Summers are hot not because Earth is closer to the sun, but because the tilt of the Earth’s axis lets rays of sunlight hit one hemisphere more directly.
- During the Northern Hemisphere’s summer, we’re actually farthest from the sun, receiving 7 percent less sunlight than the Southern Hemisphere does during its summer.
- The summer solstice—June 20 this year—is the Northern Hemisphere’s longest day, with 24 hours of unbroken sunlight north of the Arctic Circle.
- For obsessive-compulsives: The site www.archaeoastronomy.com maintains a second-by-second countdown to each solstice.
- The Tropic of Cancer—the latitude on Earth where the sun is directly overhead at noon on the summer solstice—got its name because when the ancients established it, the sun appeared in the constellation Cancer. But, due to subsequent shifting of Earth’s axis, the Tropic of Cancer is now misnamed. On the current June solstice, the sun actually appears in the constellation Taurus.
- Other planets have solstices too. By cosmic coincidence, this year Mars and Earth have solstices that fall within a few days of each other, with the Martian solstice occurring on June 25.
- Uranus’s axis of rotation is nearly aligned with the plane of its orbit, meaning that each pole on Uranus experiences a 42-year-long summer of steady sunshine—followed by a depressing 42 years of winter darkness.
- At the other extreme, Venus’s and Jupiter’s poles are almost exactly perpendicular to their orbits. Because of that, their solstices—hence their seasons—are barely noticeable. Then again, you would have difficulty noticing any kind of season on Venus because you would be simultaneously suffocated, crushed, and cooked at 870 degrees Fahrenheit. On Jupiter it would be worse: You would be killed by radiation long before you got close.
- Even without seasons, changes in the sun affect the planets. Sunspots wax and wane on an 11-year cycle; at times of peak sunspot activity, such as the year 2000, the sun is 0.07 percent brighter than during periods of low activity.
- And the sun keeps getting brighter. Models of stellar evolution estimate that the sun is about 40 percent more luminous today than it was when the Earth formed 4.5 billion years ago.
Today is the perfect day to listen to DJ elluminati's SUNSHINE MIX!
This is jazzy/vocal/reggae drum and bass, take a listen or download!
-Let me know what you think!
This is jazzy/vocal/reggae drum and bass, take a listen or download!
-Let me know what you think!
Comments
amazing, I hope you were there too
Nice one!