The glowing red rose nebula (NGC 2237) resembles a rose flower, just as its name suggests. The rose nebula can be observed with a small telescope. It can be easily found when looking toward the direction of Monoceros, especially in winter. Located about 5,000 light-years away from Earth (1 light-year is the distance light travels in one year, approximately 9.46 trillion kilometers), it appears much smaller than a rose, but in fact, the rose nebula is a vast emission nebula that extends about 100 light-years in range. Bright young stars are gathered at the center of the nebula. The strong ultraviolet radiation emitted by these young stars interacts with hydrogen, creating the beautiful red hues of the rose nebula.
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