Spectroscopic Confirmation of the Active Dwarf Nature of 2MASS J07363415+6538548

The star 2MASS J07363415+6538548 (hereafter 2M0736) was previously classified as a possible symbiotic binary, a cataclysmic variable, an H II region, a massive star cluster, a supernova remnant, or a high-mass X-ray binary. In the previous research, while analyzing disputable symbiotic candidates in our New Online Database of Symbiotic Variables, we employed multi-frequency photometric observations, and reclassified the object as an active K-type dwarf. Here, we analyze the low-resolution spectroscopy of 2M0736 to confirm its photometric classification and validate that our methods are able to provide comparable results with the optical spectroscopy. The obtained spectrum confirmed that 2M0736 is a K6 dwarf. The presence and strength of the Hα emission line have verified that the object is very active.