Don’t be too hard on yourself, Dominic. I did in fact do a bit of web searching to see where the Mirror journalist may have got this information. And I had a look at in the sky.org . Your site had nothing about 21:15 being the best time to spot the comet, nor did your site say it was super bright (it wasn’t even in the top three brightest comets) / even in the naked eye range.
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