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TCP J02041514+4053325: new transient (14.5 mag) in Andromeda

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SPK
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TCP J02041514+4053325: new transient (14.5 mag) in Andromeda

TCP J02041514+4053325 (UGWZ:)
https://www.aavso.org/vsx/index.php?view=detail.top&oid=1545679

RA 02h04m15.14s DE +40°53'32.5" (J2000.0)
2020 June 16.7052 UT, mag. 14.5 (CCD, unfiltered)
Discoverer: Hideo Nishimura (Kakegawa, Shizuoka-ken, Japan)
http://www.cbat.eps.harvard.edu/unconf/followups/J02041514+4053325.html

2020 06 16.705 UT
Discovered by Hideo Nishimura, Kakegawa, Shizuoka-ken, Japan, who found this star on three frames (limit mag. = 16) taken with Canon EOS 6D digital camera + 200-mm f/3.2 lens, who writes there is no past image and a faint blue star on PanSTARRS/DR1 color.

2020 06 17.30 UT
The faint blue Pan-STARRS1 source mentioned above by Nishimura-san is PSO J020414.836+405333.405 (gmag. 22.2, rmag. 21.9) at 02 04 14.853 +40 53 33.88 (J2000.0). No brightenings were recorded by the ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S and Kochanek et al. 2017PASP..129j4502K); complete light curve and data at https://asas-sn.osu.edu/light_curves/6e61f5e1-37ad-47e5-b7ae-a0703a3ef44a

WZ Sagittae-type dwarf nova outburst? Multiband and time-resolved photometry as well as spectroscopy are required.

Patrick Schmeer (Saarbrücken-Bischmisheim, Germany)

SPK
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Now in VSX

TCP J02041514+4053325 has been added to the International Variable Star Index:
https://www.aavso.org/vsx/index.php?view=detail.top&oid=1545679

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