2020f3 20200721 2221 NigelEvans

The biggest challenge is that the skies in Suffolk are not dark, making seeing a faint fuzzy thing a bit of a challenge. In normal camera lenses the field of view is so large that the sky background varies in strength and colour with time across a frame. Exposures were only 10 or 15 seconds. The site I used north of Ipswich was chosen for a low northern horizon and, as the weather forecast was rather indecisive, I was not tempted to go further afield.
Here one can imagine that the tail might extend as far as Phecda (gamma UMa) or Megrez (delta UMa), some 19 and 22 degrees away respectively. In a still 200721 NEOWISE 50 still NSE the same degree of imagination is needed. 200721 NEOWISE 50 blue NSE is the same photo but only showing the blue layer, both inverted and stretched a bit.