
Topic
galaxy
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NGC 7456 is a spiral galaxy in the constellation of Grus. Its velocity with respect to the cosmic microwave background is 944±18 km/s, which corresponds to a Hubble distance of 45.4 ± 3.3 Mly (13.92 ± 1.01 Mpc). Additionally, 23 non-redshift measurements give a farther mean distance of 50.33 ± 2.11 Mly (15.430 ± 0.648 Mpc). It was discovered by British astronomer John Herschel on 4 September 1834.