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Arp 288
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- 1Gran Telescopio Canarias captures striking image of galaxy Arp 288●Gran Telescopio Canarias image of Arp 288, also known as NGC 5221. In 2016, a supernova appeared in the galaxy's long ti
A new image from the Gran Telescopio Canarias shows Arp 288, also known as NGC 5221, a galaxy with a long tidal tail stretching roughly 260 thousand light years from its center. A supernova that appeared in that tail in 2016 acted as a backlight, revealing that the tail contains surprisingly little dust, a detail astronomers find notable.