"This Hubble image features a trio of galaxies that appear to be very close together, but appearances can be deceiving. The large spiral galaxy at the bottom right is NGC 1356. The two apparently smaller spiral galaxies flanking it are LEDA 467699 ( top) and LEDA 95415 ( left)."
"Although the two galaxies at the bottom of the image appear to be near each other, NGC 1356 is a mere 550 million light-years away from Earth, and its companion in the sky, LEDA 95415, lies 840 million light-years away-another nearly 300 million light-years farther from us."
A Hubble image features a trio of galaxies that appear close together in the sky but are separated by large cosmological distances. The large spiral at the bottom right is NGC 1356. The two smaller-looking spirals flanking it are LEDA 467699 (top) and LEDA 95415 (left). Although the two galaxies at the bottom appear near each other, NGC 1356 lies 550 million light-years from Earth while LEDA 95415 lies 840 million light-years away, roughly 300 million light-years farther. The visual proximity results from line-of-sight alignment rather than physical proximity. A new image will be revealed each day until December 25 as part of the 2025 Space Telescope Advent Calendar.
Read at The Atlantic
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