G-type star in the constellation Delphinus
! style="text-align: center; background-color: #FFFFC0;" colspan="2" | Observation dataEpoch J2000.0      Equinox J2000.0 (ICRS)
! style="text-align:left" | Constellation
! style="text-align:left" | Right ascension
! style="text-align:left" | Declination
! style="text-align:left" | Apparent magnitude (V)
! style="background-color: #FFFFC0; text-align: center;" colspan="2"| Characteristics
! style="text-align:left" | Spectral type
! style="text-align:left" | U−B 
! style="text-align:left" | B−V 
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HD 193556 (HR 7778) is a solitary star in the equatorial constellation Delphinus. It has an apparent magnitude of 6.17, making it visible to the naked eye under ideal conditions. Parallax measurements place the object at a distance of 467 light years and it is currently receding with a heliocentric radial velocity of .
HD 193556 has a stellar classification of G8 III, indicating that it is a red giant. It has 2.65 times the mass of the Sun and is currently 490 million years old, having expanded to 11.33 times the radius of the Sun. It shines with a luminosity of from its enlarged photosphere at an effective temperature of , giving it a yellow glow. HD 193556 has an iron abundance around solar level and spins leisurely with a poorly constrained projected rotational velocity of .
References.
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