Last month I did a "between the trees" sequence to get a number of lower declination objects from my backyard, starting with M74 (
https://www.astrobin.com/i3acyf), which was on my wish list for some time. So set up a NINA sequence of several lower declination objects roughly 1.5h in RA apart, and slewing the telescope to next galaxy in line whenever one object is about to move out of the gap between the trees thus getting about 1-1.5h of "airtime" per object and night (or less, depending on clouds). The almost full moon allowed to complement the sequence with Halpha.
NGC672 and its gravitationally bound neighbour IC 1727 form the galaxy pair Holmberg 46 located in the constellation Triangulum. They are both barred spiral galaxies, the bar arguably triggered by the tidal forces of the close encounter. NGC 672 appears to be the more massive of the two, which would also explain why IC1727 is the more distorted one. Both objects are actively star forming, which made the Halpha subs to be a pleasant addition to the image.
There is an interesting naming curiosity: The lablel NGC672 originally designated a different object (which nowadays runs under the name NGC614). That object was discovered by William Herschel in 1786 while the object NGC672 in the current designation was discovered 41 years later by William's son, John Herschel.
Data were taken on 2023 September 11, 12, 15, 16, 17, 20, 25, 26, and October 2nd.
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