HD 197037 is a binary star system. Its primary or visible star, HD 197037 A, is a F-type main-sequence star. Its surface temperature is 6150 K. HD 197037 A is depleted in heavy elements compared to the Sun, with a metallicity Fe/H index of −0.16, but is younger at an age of 3.408 billion years.
A multiplicity survey detected a red dwarf stellar companion HD 197037 B in 2016, at a projected separation of 121 AU. The existence of other stellar companions at projected separations from 1.62 to 45.26 AU was excluded.
Planetary system
In 2012 one planet, named HD 197037 Ab, was discovered on a wide, eccentric orbit by the radial velocity method.
Another planet in the system was initially suspected, but the radial velocity signal was later attributed to the stellar companion HD 197037 B.
References
Cygnus (constellation) Planetary transit variables F-type main-sequence stars Planetary systems with one confirmed planet J20393296+4214549 BD+41 3845 101948 197037 Binary stars M-type main-sequence stars