In the core of the larger spiral structure of NGC 1300, the nucleus shows a "grand-design" spiral structure that is about 3,300light-years long. Only galaxies with large-scale bars appear to have these grand-design inner disks — a spiral within a spiral. Models suggest that the gas in a bar can be funneled inwards, and then spiral into the center through the grand-design disk, where it can potentially fuel a centralsupermassive black hole (SMBH). NGC 1300 is not known to have an active nucleus, indicating that its central black hole is not accreting matter. The SMBH has a mass of7.3+6.9 −3.5×107M☉.[10][11]
Onesupernova has been observed in NGC 1300: SN 2022acko (typeIIP, mag. 15.8).[12][13]
Infrared observation of spiral galaxy NGC1300 in the constellation Eridanus.
^Graham, Alister W. (November 2008). "Populating the Galaxy Velocity Dispersion - Supermassive Black Hole Mass Diagram: A Catalogue of (Mbh, σ) Values".Publications of the Astronomical Society of Australia.25 (4):167–175.arXiv:0807.2549.Bibcode:2008PASA...25..167G.doi:10.1071/AS08013.S2CID89905.
