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Hubble captures one-armed spiral galaxy NGC 4618

Original: Hubble Space Telescope image of Arp 23, also known as NGC 4618. NGC 4618 is a single-armed barred spiral galaxy. It has

The Hubble Space Telescope has released an image of Arp 23, also known as NGC 4618, a barred spiral galaxy notable for having only a single arm. The galaxy is about one third the diameter of the Milky Way, and astronomers suggest its unusual shape may result from gravitational interactions with its neighbouring galaxy NGC 4625. Space enthusiasts are sharing and discussing the striking image.

Why now: A striking new Hubble image of an unusually shaped galaxy is circulating among space fans.

Hubble Space TelescopeNGC 4618NGC 4625Arp 23

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Evidence

• Hubble Space Telescope image of Arp 23, also known as NGC 4618. NGC 4618 is a single-armed barred spiral galaxy. It has a diameter of about a third that of the Milky Way. Its unusual shape may come from gravitational interactions with a neighboring galaxy NGC 4625, which is… · ArpBot · 12

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