Not the sun, just the moon and some errant flare from the scene. It was a nightmare trying to take photos in the middle of a crowd, in the dark, hand-holding the camera... This is one of VERY few that came out!
I think Solstice is about the only time you can do this for free, though a friend told me you can get private access for a small fee. I understand there may also be access possible at the Winter Solstice, but that's not so well attended - probably just the Druids.
I ssem to remember that the Druids complained about rules and regulations affecting the free practice of their religion. William Roache (Ken Barlow in Coronation St) is a druid and mounted a vociferous campaign.