HD 194783
HD 194783 is a solitary star located in the southern constellation of Microscopium near the border with Sagittarius. It is barely visible to the naked eye as a bluish-white-hued point of light with an apparent magnitude of 6.08. The object is located relatively far at a distance of 740 light-years based on Gaia DR3 parallax measurements, but it is drifting closer with a heliocentric radial velocity of. At its current distance, HD 194783's brightness is diminished by an interstellar extinction of 0.31 magnitudes and it has an absolute magnitude of either −0.59 or −1.10, depending on the source.
HD 194783 has a stellar classification of B8 II/III, indicating that it is an evolved B-type star with the blended luminosity class of a bright giant and a lower luminosity giant star. It has also been given a class of B9pHgMn, indicating that it is a chemically peculiar mercury-manganese star. It has 4.03 times the mass of the Sun and a slightly enlarged radius 4.19 times that of the Sun's. It radiates 390 times the luminosity of the Sun from its photosphere at an effective temperature of. The heavy metal to hydrogen ratio–what astronomers dub as the star's metallicity–is 63% that of the Sun's. HD 194783 is estimated to be approximately 70 million years old.
In 1989, HD 194783 was reported to be a spectrum variable with a period of 6 days. The projected rotational velocity of the star is not known, but it is said to be no higher than. HD 194783 was also observed to have a relatively weak magnetic field of about −43 gauss.