According to Karina Voggel and Colleagues investigation of 2022 focused about NGC7727 galaxy in Aquarius, as merging of two distinct galaxies, it was evinced that both host a SMBH – super-massive black hole; cfr. Karina T. Voggel, Anil C. Seth, Holger Baumgardt, Bernd Husemann, Nadine Neumayer, Michael Hilker, Renuka Pechetti, Steffen Mieske, Antoine Dumont and Iskren Georgiev, 2022 “First direct dynamical detection of a dual supermassive black hole system at sub-kiloparsec separation” in Astronomy & Astrophysics, Vol.658: A152 [doi]

    Crabtree and Smecker-Hane 1994 researches gave datation of galaxies merging at about 1 billion years ago: cfr. Crabtree Dennis R. and Smecker-Hane Tammy, 1994 “Young Star Clusters and CO Gas in the Galaxy Merger, NGC 7727 (Arp 222)” in American Astronomical Society, 185th AAS Meeting, id.107.14; Bulletin of the American Astronomical Society, Vol. 26, p.1499 […18510714C/abstract]


    LRGB 300sec subframes recorded between 11/08/2023 and 22/08/2023 by Planewave CDK24 and QHY 600M Pro CMOS camera from Telescoplive network El Sauce Observatory in Rio Hurtado Valley, Chile.

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