Golden Spiral Canvas — Celestial

Quarter circles in successive squares; consecutive radii are in the ratio φ ≈ 1.618. Canvas stretched on a wooden frame, dark or ivory background, format of your choice: 30 × 30 cm, 40 × 40 cm or 60 × 60 cm. Design on the front, plain edges. Celestial style: the figure surrounded by orbits, stars and the phases of the Moon, as decoration.