As part of the Transient UV Objects project, we have discovered a new outburst (at the beginning of 2020 October) of the candidate cataclysmic variable (CV) ASASSN-18eh using the UV/Optical Telescope aboard the Neil Gehrels Swift Observatory. During the outburst its brightness increased by about 6 mag in UV compared to its brightness in the quiescent state. The properties of this outburst are consistent with it being a dwarf nova, strongly supporting the CV nature of ASASSN-18eh.

中文翻译：

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从ASASSN-18eh中检测到的第一个紫外线爆发增强了其作为催化变量的解释。

作为“瞬态紫外线对象”项目的一部分，我们使用尼尔·盖勒斯·斯威夫特天文台上的紫外线/光学望远镜发现了一个新的候选大地震变量（CV）ASASSN-18eh（在2020年10月开始）。与在静止状态下的亮度相比，在爆发期间，其亮度在紫外线下增加了约6 mag。这次爆发的性质与它是矮新星一致，强烈支持ASASSN-18eh的CV性质。