The aurora of March 23, 2023, caught early in the evening when there was a green arc to the south as the sky darkened that exhibited a "dunes" type of structure, with horizontal banding rather than vertical rays or curtains. Above is a purple arct that has some characteristics of a STEVE arc but is likely a standard vertical curtain. At right are Venus and the crescent Moon below, above the glow of twilight. Orion is left of centre, with Sirius embedded in the dunes arc. This is looking southwest to west. The time was about 9 pm MDT.