As you say, the first opportunity to get this object from the UK is as it gets dark on June 29, around 8 hrs after close approach. It is then moving rapidly north through Pegasus. It is then visible throughout the short night moving rapidly but quite bright (fading from 11.3 to 11.7). By the following night it is well-placed in Andromeda and moving much more slowly but it will have faded to below 14. It then stays in Andromeda as it moves away from us and fades to around mag 18 by the night of July 5/6.
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