星明天文台

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张宓 XM14MZ = AT 2019olu 已知变星

天琴RR型变星:RR Lyrae stars from the PS1 3π survey (Sesar+, 2017)

美国变星观测者协会(AAVSO)VSX数据库收录确认为变星,https://www.aavso.org/vsx/index.php?view=detail.top&oid=844611

The outburst of a variable star candidate

Mi Zhang and Xing Gao, report the outburst of a variable star candidate (mag approximately 15.3) was discovered on severl 60-s survey images (limiting mag about 19.0) taken by Xing Gao in Xingming Observatory Sky Survey (XXX) around Aug. 23.64789 UT using a unfiltered CCD ( + 0.5-m f/4 reflector + CCD ). The transient approximately located at R.A.=00h57m10.19s +62d03’55”.9 (equinox 2000.0). Which is about 66.6″ west and 52.2″ north of the TYC 4021-523-1 (star). The variable star candidate on Aug. 22.64928 UT was 17.1 (limiting mag 19.0).

NET USNO-A2.0
XM14MZ C2019 08 23.64789 00 57 10.19 +62 03 55.9 15.3 V XXX

COD XXX
COM Long. 88 34 37.9 E, Lat. 43 31 20.6 N, Alt. 1795m
CON Gaoyazi Observatory, Urumqi, Xinjiang, China

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