Leaning against the wall at the end of Whittington Street opposite the park. Sketchy chalk arc, barely there, tipped to the left in clear blue bowl. I saw Spica in the same spot on Saturday evening, the first star a blue-white twinkle that at first I thought was moving. Guy with tattooed neck and arm walking home on the other side says: Photo of the moon? Beaumont Park tree shadows: horse chestnut, beech, sycamore, ash. Aristotle noted that "sunlight travelling through small openings between the leaves of a tree, the holes of a sieve, the openings wickerwork, and even interlaced fingers will create circular patches of light on the ground" (Euclid's Optics c.300 BCE).