Explanation: What color is the universe? More precisely, if the entire sky were smeared out, what color would the final mix be? This whimsical question came up when trying to determine what stars are commonplace in nearby galaxies. The answer, depicted above, is a conditionally perceived shade of beige. In computer parlance: #FFF8E7. To determine this, astronomers computationally averaged the light emitted by one of the larger samples of galaxies analyzed: the 200,000 galaxies of the 2dF survey. The resulting cosmic spectrum has some emission in all parts of the electromagnetic spectrum, but a single perceived composite color. This color has become much less blue over the past 10 billion years, indicating that redder stars are becoming more prevalent. In a contest to better name the color, notable entries included skyvory, univeige, and the winner: cosmic latte.

Gallery: Notable images of the Great Conjunction submitted to APOD

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Публикации с ключевыми словами: universe - цвет - Вселенная Публикации со словами: universe - цвет - Вселенная
См. также: "Иллюстрис" моделирует Вселенную Эдвин Хаббл открывает Вселенную Карта наблюдаемой Вселенной Послание от гравитационной Вселенной Раскрасьте Вселенную Степени десяти Эарендел: звезда в ранней Вселенной Все публикации на ту же тему >>