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Halton Arp

Astronomer from the United States (1927-2013) · United States · On the map · Scientists · Died at 86

Halton Christian "Chip" Arp was an American astronomer. He is remembered for his 1966 book Atlas of Peculiar Galaxies, which catalogued unusual-looking galaxies and presented their images.

Halton Arp is read about 28 times a day, in 29 languages.

A typical day, 30 days to 18 June 2026

The middle day of the days counted, so one week of news cannot move it. The line under it is the last 60 days, one point a day.

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