In honor of Valentines Day, this post is about the Heart and Soul nebulae, two stunningly beautiful red emission nebulae. The Soul Nebula is found to the lower left, while the Heart nebula dominates the right side of the image. Both of these can be found in the constellation Cassiopeia, and lie about 6000 light-years away from earth. Each one spans an estimated 300 light-years across. These nebulae are useful in studying the formation of stars, especially ones of remarkable size.
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