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Inside IC 1805, the glowing Heart Nebula

NASA’s image archive describes a vast star-forming cloud powered by young stars about 7,500 light-years away.

1 Source, 17h ago, first seen 17h ago

TLDR

Complex shared photos credited to NASA and described a heart-shaped nebula without naming it. NASA’s archive separately documents IC 1805, the Heart Nebula, a nearly 200-light-year-wide cloud about 7,500 light-years away. Its red glow comes from hydrogen gas energized by hot young stars near the center, including the cluster Melotte 15.

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1 Source, first seen 17h ago

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A post from Complex shared four photos credited to NASA and described them as a heart-shaped nebula, but did not name the object. NASA's image archive separately documents IC 1805, better known as the Heart Nebula.

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The nebula sits about 7,500 light-years away toward the constellation Cassiopeia. Its nickname comes from its heart-like shape, outlined by glowing gas and dark dust.

Why the nebula glows red

NASA describes IC 1805 as an emission nebula. Energetic radiation from hot stars near its center excites surrounding hydrogen gas, producing the deep red light seen in many images. The young star cluster at its core is called Melotte 15.

A nursery on a massive scale

An earlier NASA archive entry says the nebula stretches across nearly 200 light-years and contains regions where stars were born. That entry dates Melotte 15 to roughly 1.5 million years old, making the cluster very young by astronomical standards.

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Inside IC 1805, the glowing Heart Nebula

TLDR

Combined views

Combined views

Inside IC 1805, the glowing Heart Nebula

TLDR

Combined views

Why the nebula glows red

A nursery on a massive scale

Sentiment

Summary

3 Sources

Combined views

Sentiment

Summary

Why the nebula glows red

A nursery on a massive scale

Sentiment

Summary

Sentiment

Summary

3 Sources

3 Sources

3 Sources