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The Question & Answer (Q&A) Knowledge Managenet
The Internet has many places to ask questions about anything imaginable and find past answers on almost everything.
ecliptic
Ecliptic. The apparent path that the sun traces out against the background stars due to the Earth’s orbit around the Sun. More precisely, the ecliptic is the line formed by the intersection with the plane of the Earth’s orbit and the celestial sphere.
The apparent motion of the sun, caused by the rotation of the Earth about its axis, changes the angle at which the direct component of light will strike the Earth. From a fixed location on Earth, the sun appears to move throughout the sky.
The Sun is currently in the constellation of Gemini. The current Right Ascension of The Sun is 06h 17m 45s and the Declination is +23° 22′ 18” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current magnitude of The Sun is -26.71 (JPL).
noon
As the Sun is higher in the sky during summer, the sunlight reaching the surface is more concentrated. In winter, the Sun is lower in the sky, and sunlight is spread out over a larger area. During spring and autumn, both hemispheres receive about the same amount of sunlight.
FACT TWO: The angle of the sun is changing with the seasons So this means the sun is far higher in the sky in the summer (creating shorter shadows) than in the winter (longest shadows). Starting in the winter, the solar altitude increases through spring and peaks in summer.
93.44°
Sun path diagrams can tell you a lot about how the sun will impact your site and building throughout the year. Stereographic sun path diagrams can be used to read the solar azimuth and altitude for a given location.
In summer, it always “seems” that the intensity of sunlight is brighter. On the Winter Solstice, on the other hand, the Sun’s maximum height over the horizon is a full 46.8° lower than it is at Summer Solstice. That’s not only a difference you can see, it’s a difference you can clearly feel in terms of warmth!
Since the Sun is the closest star to Earth, it appears larger compared to more distant stars. However, the Sun is really an average star. Many of the distant pinpoints of light we see in the sky at night are actually stars larger and brighter than the Sun! They are just much, much farther away from us.
Photokeratitis is a painful, temporary eye condition caused by exposure to ultraviolet (UV) rays, most commonly from the sun. Photokeratitis can be compared to a sunburn, except that it affects the corneas of your eyes instead of your skin.
What makes the sun so bright is its power source: a process called nuclear fusion, which yields abundant energy. The fusion reaction, along with the sun’s enormous size, means it will continue to shine brightly billions of years into the future.
The Sun looks bigger than other stars because it is so much closer to the Earth. The further away an object is, the smaller it appears, even if it is very big.