This study reports that the carbon star CGCS 673 is a semi-regular (SR) variable star with a period of 135 d and an amplitude of 0.18 mag in the V-band. The light curve obtained by this study correlates well with the SR classification as the photometric data obtained show noticeable periodicity in the light changes of CGCS 673 that is occasionally interrupted by a period of irregular variability. The derived period and colour index obtained from our data and those from professional databases indicate that the attributes of this star fall within the parameters of the SR class of variable stars. Following our notification of the discovery that this star is a variable source, CGCS 673 has received the AAVSO Unique Identifier of (AAVSO UID) 000-BMZ-492.

该研究报告称，碳星CGCS 673是一颗周期为135 d、V波段振幅为0.18 mag的半规则（SR）变星。这项研究获得的光曲线与 SR 分类有很好的相关性，因为获得的光度数据显示 CGCS 673 的光变化具有明显的周期性，偶尔会被一段不规则的变化中断。从我们的数据和专业数据库中获得的派生周期和颜色指数表明，这颗星的属性在变星SR类的参数范围内。在我们发现这颗星是可变源的通知后，CGCS 673 收到了 (AAVSO UID) 000-BMZ-492 的 AAVSO 唯一标识符。