| Added | Fri, 08/03/2019 |
| Источники | |
| Дата публикации | Thu, 07/03/2019
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| Версии |
Thursday, March 7, the solar dynamics Observatory of NASA (SDO) recorded a solar Eclipse visible only from Earth's orbit.
During the blackout, which lasted just over four hours, was covered by 82% of the Sun. Such Eclipse, when the Moon completely covers the Sun and it is surrounded by a fiery ring, called the ring.
As you can see, the dark disk of the moon phase new moon passes before the Sun, then stops again and goes back and forth. This unusual effect is the result of orbital mechanics. And SDO, and the Moon revolve around the Earth, but at different speeds. Speed SDO — about 3 km/s and the speed of the moon — 1 km/s. Thus, SDO overtakes the moon first in one direction and then in another.
The high resolution images shows that the Moon is not perfectly smooth. Its scalloped edge is mountains of the moon, illuminated by the solar plasma. Such clear images have practical value to the SDO science team, helping to set the telescope to improve image quality.
Translated by «Yandex.Translator»
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