GO ASTRONOMY | Seyfert's Sextet & Copeland's Septet: Amazing 6-Galaxy and 7-Galaxy Interacting Galaxy Groups @goastronomy | Uploaded June 2023 | Updated October 2024, 9 hours ago.
See two famous galaxy groups: Seyfert's Sextet (6 interacting galaxies) in the Serpens constellation and Copeland's Septet (7 interacting galaxies) in the Leo constellation:

SEYFERT'S SEXTET is ~190 Mly distance. Members include:
NGC 6027 - lenticular galaxy,
NGC 6027e - tidal tail of NGC6027,
NGC 6027a - spiral galaxy,
NGC 6027b - lenticular galaxy,
NGC 6027c - spiral galaxy,
NGC 6027d - spiral galaxy.

COPELAND'S SEPTET is ~ 430 Mly distance. Members include:
NGC 3748 - lenticular galaxy,
NGC 3754 - spiral galaxy,
NGC 3750 - lenticular galaxy,
NGC 3751 - lenticular galaxy,
NGC 3745 - lenticular galaxy,
NGC 3753 - spiral galaxy,
NGC 3746 - spiral galaxy.

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