Spectroscopy and photometry of HP Aur

New photometric, spectroscopic, and eclipse timing observations of the eclipsing binary star HP Aur allow for very accurate orbital determinations, even in the presence of a...针对食双星（eclipsing binary star）HP Aur开展的全新测光、光谱及食时计时观测，即便在存在……的情况下，仍可实现极高精度的轨道参数测定。