NGC 7154 is a peculiar barred spiral galaxy in the constellation of Piscis Austrinus. Its velocity with respect to the cosmic microwave background is , which corresponds to a Hubble distance of . However, eight non-redshift measurements give a closer mean distance of . It was discovered by British astronomer John Herschel on 23 September 1834.
NGC 7154 has a possible active galactic nucleus, i.e. it has a compact region at the center of a galaxy that emits a significant amount of energy across the electromagnetic spectrum, with characteristics indicating that this luminosity is not produced by the stars.
IC 5156 group NGC 7154 is a member of the IC 5156 group (also known as LGG 450). This group contains 14 galaxies, including , NGC 7172, , , , , , and six galaxies from the ESO catalogue.
Supernova One supernova has been observed in NGC 7154: SN 2026hze (TypeII, mag. 16.1) was discovered by ASAS-SN on 30 March 2026.
See also List of NGC objects (7001–7840)
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