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PSP项目 PSP21aa = AT 2021abua ? 变星

Qingfeng Zhu, Wenjie Zhou, Mi Zhang, Xing Gao (Xingming Obs), report the discovery of a variable star candidate (17.91 G). The source appears to correspond to object Gaia DR2 496347247026471424 (18.76 G) in the Gaia DR2. Discovery was made on one 40-s survey image (limiting mag  about 18.5) taken by Xing Gao around 2021 Oct 10.76292 UT at Xingming Observatory #3 (N88) using a unfiltered CCD (+Celestron C14  SchmidtCassegrain telescope D=356mm @f/6.9). Images can be found at: http://xjltp.china-vo.org/psp21aa.html

NET Gaia DR2
PSP21aa C2021 10 10.76292 04 49 27.77 +69 30 28.7 17.91G N88

Discovery image taken around 2021 Oct. 10.76292 UT at N88 PS Image

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