Star Finder and Identifier No 2102-D (Pre-owned)

Star Finder and Identifier No. 2102-D – Pre-Owned (Good Condition)

This pre-owned Star Finder and Identifier No. 2102-D is in good condition, with all key components intact and legible. Slight discoloration, see photos. Widely used in celestial navigation and astronomy education, this tool helps locate and identify stars, constellations, and navigational reference points using a rotating overlay calibrated for latitude and time. An essential piece of gear for navigators, amateur astronomers, or collectors of vintage scientific tools.

Key Features:

• Model: No. 2102-D
• Purpose: Celestial navigation and star identification
• Components: Star base with clear overlay disc calibrated for time and position
• Material: Durable printed cardstock/plastic composite
• Use Range: Designed for latitudes between 0° and 60° N
• Compact and portable: Folds flat for easy storage and field use
• Publisher: U.S. Navy Hydrographic Office (historically used for training and shipboard navigation)

Use Cases:

• Manual star identification and celestial navigation
• Educational use in astronomy and maritime science
• Backup navigation aid for sailors and adventurers
• Great addition to a vintage instrument collection

Whether you're plotting stars at sea, teaching celestial mechanics, or simply exploring the skies the old-school way, the 2102-D remains a reliable and historically significant tool.