Spectroscopic binary orbits from photoelectric radial velocities - Paper I45: HR 6797

HR 6797 is a fifth-magnitude F-dwarf system that was not recognized as a sp ectroscopic binary until 1966, when for the first time its spectrum was obs erved with sufficient dispersion to be seen, on occasion, as closely double -lined. It is now shown to consist of slightly unequal components in a some what eccentric orbit with a period of very nearly 200 days. The orbital inc lination is 33 degrees; the maximum angular separation is expected to be 0" .019. There is a faint visual companion 7" away, so the system is at least triple.