The object is a unique star that is very near the end of its evolution and is not a binary or multiple star?

the object is a unique star that is very near the end of its evolution and is not a binary or multiple star, a nova (all novae are binary systems), a supernova, or a supermassive star. Furthermore, it is a variable star that is not visible without optical aid, is located in Sagittarius, and was discovered relatively recently by an amateur astronomer.|||Are you asking for an explanation of that part of this statement about the Nova Saggitarius?





Not all novae are polynary systems. Some star systems are binary and some are trinary, but most novae, like most stars, are mononary, or stars that do not orbit around another star or each other, but are lone wolves, if you will.





Some objects that we can see with the naked eye, or with simple optics, are not actually just one star, but are stars that orbit around each other as the earth and the moon orbit around each other, or where one much smaller star orbits around a much larger star, like the planets orbit around our sun. Sometimes there are two stars in such systems, making it a binary star system, and sometimes there are three, such as in the handle of the big dipper, making it a trinary star system.





The so-called nova Sagitarius, however, isn't actually a nova at all, but a star that is in the process of its stellar cycle that precedes a nova, where most of its nuclear activity is occurring by the nuclear fission of heavy metals, which ejects its less-dense matter (gasses) into space, which stops the nuclear fusion of the gasses, but makes the star appear bigger, and therefore easier to see, like the effect we get when we use soft white incandescent light bulbs.