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An irregular galaxy filled with many bright, blue stars and pink clouds of energized gas resembles the shape of a blunt arrowhead pointing upward. The portion of the arrowhead at lower right contains many more stars than the portion at lower left. A smaller, yellowish, face-on spiral galaxy is located to the left of the main galaxy at 10 o’clock. Dozens of foreground stars are scattered across the image.

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An irregular galaxy filled with many bright, blue stars and pink clouds of energized gas resembles the shape of a blunt arrowhead pointing upward. The portion of the arrowhead at lower right contains many more stars than the portion at lower left. A smaller, yellowish, face-on spiral galaxy is located to the left of the main galaxy at 10 o’clock. Dozens of foreground stars are scattered across the image.
https://cdn.masto.host/astrodonsocial/media_attachments/files/112/162/683/625/314/022/original/7f13ca900521754f.jpg

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Space Telescope Science Inst. (spacetelescope@astrodon.social)'s status on Wednesday, 27-Mar-2024 23:03:31 JST Space Telescope Science Inst.

It’s easy to see why NGC 1427A is classified as an irregular galaxy. Its odd arrowhead shape is a result of gas pressure and gravitational forces as it plunges into a group of galaxies at about 1.5 million miles per hour (700 km/s): https://bit.ly/3SYbOom

In conversation about 8 months ago from astrodon.social permalink