How large does the Helix Nebula appear in the sky?

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Planetary nebula Southern Ring Nebula as captured by the James Webb Space Telescope in the near-infrared (left) and the mid-infrared (right). The dimmer star at the center of this scene has been sending out rings of gas and dust for thousands of years in all directions. The Southern Ring Nebula is approximately 2,500 light-years away.

The Helix Nebula (NGC 7293), located in the constellation Aquarius, is one of the largest-known planetary nebulae. In the night sky, it subtends an angle of approximately 20 minutes of arc, which is equivalent to two-thirds the angular size of the Moon.1