Exoplanetary systems closest to the Sun , with the brightest host stars , provide the most favorable opportunities for characterization studies of the host star and their planet ( s ) .
The Transit Ephemeris Refinement and Monitoring Survey uses both new radial velocity measurements and photometry in order to greatly improve planetary orbit uncertainties and the fundamental properties of the star , in this case HD 130322 .
The only companion , HD 130322b , orbits in a relatively circular orbit , e = 0.029 every \sim 10.7 days .
Radial velocity measurements from multiple sources , including 12 unpublished from the Keck I telescope , over the course of \sim 14 years have reduced the uncertainty in the transit midpoint to \sim 2 hours .
The transit probability for the b -companion is 4.7 % , where M _ { p } \sin i = 1.15 M _ { J } and a = 0.0925 AU .
In this paper , we compile photometric data from the T11 0.8m Automated Photoelectric Telescope at Fairborn Observatory taken over \sim 14 years , including the constrained transit window , which results in a dispositive null result for both full transit exclusion of HD 130322b to a depth of 0.017 mag and grazing transit exclusion to a depth of \sim 0.001 mag .
Our analysis of the starspot activity via the photometric data reveals a highly accurate stellar rotation period : 26.53 \pm 0.70 days .
In addition , the brightness of the host with respect to the comparison stars is anti-correlated with the Ca II H and K indices , typical for a young solar-type star .