Ursa Major but to avert the tragedy, Jupiter turns Arcas into a bear too and puts them both in the sky, forming Ursa Major and Ursa Minor. Callisto is Ursa Major and her son, Arcas, is Ursa Minor. In ancient times the name of the constellation was Helike, ("turning"), because it turns around the Pole. In Book Two of Lucan it is called Parrhasian Helice, since Callisto came from Parrhasia in Arcadia, where the story is set. The Odyssey notes that it is the sole constellation that never sinks below the horizon and "bathes in the Ocean's waves", so it is used
Blackmagic URSA The diopter is also user-adjustable. It screws onto the top of the URSA and URSA Mini or onto any mount compatible and connects via BNC-SDI connection and XLR, making it compatible with cameras that have these ports. The Blackmagic URSA Studio Viewfinder is a viewfinder display made by Blackmagic that is exclusively for the URSA Mini. It comprises a 7" 1080p LCD screen, a menu button and three function buttons that can display various exposure, focus and framing guides and four knobs that bring up the menu and control the brightness, contrast and peaking sensitivity. It mounts on top of