Subaru Gallery
Subaru Gallery TOPSpiral Galaxy NGC 521
September 18, 2024
Last updated: September 30, 2025
Last updated: September 30, 2025
Angular Diameter
Spiral Galaxy NGC 521Detail
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The barred spiral galaxy NGC 521 is located in the Cetus constellation. As a face-on galaxy, it shows a clear view of the bulge, dust ring, barred structure, and extended spiral arms. In the spiral structure, we can see dust lanes (dark lanes) with relatively dense obscuring clouds of interstellar dust. The color contrast is obvious; the central bulge and bar structure are reddish, and the spiral arms with young stars are bluish. Our Milky Way Galaxy is also a barred spiral galaxy; if we could observe it from the outside, would it look like NGC 521?
(Credit: NAOJ; Image provided by Masayuki Tanaka)
【Distance from Earth】About 220 million light-years
【Instrument】Hyper Suprime-Cam (HSC)
The barred spiral galaxy NGC 521 is located in the Cetus constellation. As a face-on galaxy, it shows a clear view of the bulge, dust ring, barred structure, and extended spiral arms. In the spiral structure, we can see dust lanes (dark lanes) with relatively dense obscuring clouds of interstellar dust. The color contrast is obvious; the central bulge and bar structure are reddish, and the spiral arms with young stars are bluish. Our Milky Way Galaxy is also a barred spiral galaxy; if we could observe it from the outside, would it look like NGC 521?
(Credit: NAOJ; Image provided by Masayuki Tanaka)
【Distance from Earth】About 220 million light-years
【Instrument】Hyper Suprime-Cam (HSC)
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