AT 2026 pme in M51 : not seen at mag 14 on 2026-06-19 20:55 UT

Hello there,

Here is an image of M51 (ZWO2600, clear, T300, 120sec).

No trace of this transient at mag 14.

Christophe

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Follow up of this most probably “false alert” object, on 2026-06-20 21:05 UT, same scope and cam, 180sec exposure,clear.

Oppressive temperature in the observatory by day, very hot by night, because of the heat accumulated by the walls. The image definition is not at its best.