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NASA Image of the Day: The Milky Way galaxy in the skies of the Alcoa Protected Area

تصویر روز ناسا: کهکشان راه شیری در پهنه آسمان منطقه حفاظت شده آلکوا

If you walk overnight in the Dark Sky Alqueva reserve in Portugal, you can find roads to the east and west of the sky. In today’s NASA image, the Milky Way galaxy stretches from the north horizon to the south in the sky, and in the dark skies you can easily see such a view.

Of course, it must be said that the human eye has poor performance at night and in dark areas and its capability is not comparable to photographic tools. Because our eyes are so sensitive at night and we can not easily distinguish colors, such a scene at night looks like a black-and-white image and the path of the galaxy looks like white dust in the sky.

Where did the name Milky Way come from?

It may be interesting to know that the Milky Way galaxy is named after the milky color of water in the sky, and our ancestors thought of it as a “Milky Way” in the sky. Of course, the word “galaxy” itself is derived from the Greek word meaning lion.

This image is a combination of several images taken by the photographer as a panorama of half the sky (about 180 degrees) with the center of the Milky Way galaxy on the right side of the image (south of the sky) with the galaxy disk. On the left side of the image (north of the sky) we see the continuation of the outer arm of the Milky Way galaxy, where our solar system is located and is dimmer than the center of the Milky Way.

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