标题： 喀维奇诺夫1变星的研究 显示英文标题

标题： Study of the peculiar variable star Khavchenko 1

摘要： 这项工作致力于研究鹿豹座中的特殊变星Khavchenko 1。 它由7年级学生谢尔盖·哈夫琴科于2020年发现。 这颗恒星的亮度变化幅度约为0.4星等，周期为4.213天。 最初，这颗恒星无法归入任何已知的变光类型。 它的光变曲线看起来像食双星的倒置光变曲线，类似于几年后爆发的明亮红新星V1309 Scorpii的光变曲线。 对从2020年到2024年收集的ZTF项目的新数据进行分析显示，光变曲线振幅存在周期性变化。 我们提出了几种可能的系统模型，可以解释这颗恒星的这种不寻常行为。 继续观测这颗恒星对于揭示周期变化和估计可能的爆发日期是必要的。 显示英文摘要

摘要： The work is devoted to the study of the peculiar variable star Khavchenko 1 in Auriga. It was discovered by the 7th grade student Sergey Khavchenko in 2020. The brightness of the star varies with an amplitude of about 0.4 magnitude and the period of 4.213 days. Initially the star could not have been attributed to any known type of variability. Its light curve looks like the upside-down light curve of the eclipsing binary similar to that of luminous red nova V1309 Scorpii a few years before the eruption. The analysis of the new data from the ZTF project gathered from 2020 till 2024 has shown the cyclic variations of the light curve amplitude. We have proposed several possible models of this system which can explain such an unusual behavior of this star. The continued observations of this star are necessary to reveal the period changes and to estimate the possible eruption date.