Nikon D750 with 500mm lens. Multiple exposures, each 5 seconds f4 @ ISO 10,000.
Edited in Adobe Bridge, layered together in Photoshop.
Early Saturday morning, Comet Leonard cruised past the square MMT Observatory, part of the Fred Lawrence Whipple Observatory on top of Mount Hopkins, near Amado Arizona. Comet images were approximately 30-seconds apart in this interval photo, which also includes a meteor and vehicle headlights leaving the observatory.