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About NGC 7691
NGC 7691 is an intermediate spiral galaxy in the constellation of Pegasus. Its velocity with respect to the cosmic microwave background is 3,676±26 km/s, which corresponds to a Hubble distance of 176.8 ± 12.4 Mly (54.21 ± 3.81 Mpc). However, four non-redshift measurements give a farther mean distance of 199.44 ± 9.12 Mly (61.150 ± 2.796 Mpc). It was discovered by German-British astronomer William Herschel on 16 October 1784.
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