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Birthday · February 10, 2017

Melotte 15 in the Heart

February 10, 2017

Light takes eight minutes to travel from the Sun to the Earth. It took the universe 13.8 billion years to make you.

Melotte 15 in the Heart

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APOD published February 10, 2017. Credit: Steve Cooper. A publication-date match, not a photo taken on your date. Independent of NASA.

Behind the image

Melotte 15 in the Heart

Original APOD · February 10, 2017

Cosmic clouds form fantastic shapes in the central regions of emission nebula IC 1805. The clouds are sculpted by stellar winds and radiation from massive hot stars in the nebula's newborn star cluster, Melotte 15. About 1.5 million years young, the cluster stars are scattered in this colorful skyscape, along with dark dust clouds in silhouette against glowing atomic gas. A composite of narrowband and broadband telescopic images, the view spans about 15 light-years and includes emission from ionized hydrogen, sulfur, and oxygen atoms mapped to green, red, and blue hues in the popular Hubble Palette. Wider field images reveal that IC 1805's simpler, overall outline suggests its popular name - The Heart Nebula. IC 1805 is located about 7,500 light years away toward the boastful constellation Cassiopeia.

Image credit: Steve Cooper

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