Historical clue formulations

• Constellation shaped like a harp — 2026-03-01
• Constellation resembling a musical instrument — 2025-07-15
• Constellation named for an instrument — 2024-08-02
• Vega's constellation — 2024-06-23
• Harp-shaped constellation — 2024-06-05
• Vega's constellation — 2023-08-22
• Harp-shaped constellation — 2022-03-27
• Harp-shaped constellation — 2021-09-05
• Harp-shaped constellation — 2021-02-08
• Vega's constellation — 2019-03-19
• Harp-shaped constellation — 2019-03-03
• Constellation named for a stringed instrument — 2018-04-10
• Neighbor of Hercules — 2013-06-07
• Neighbor of Draco and Hercules — 2012-07-29
• Vega's constellation — 2011-11-01
• Constellation between Cygnus and Hercules — 2008-11-20
• Neighbor of Cygnus — 2006-06-30
• Neighbor of Draco — 2006-01-22
• Vega's constellation — 2001-12-12
• Constellation next to Hercules — 2001-12-05
• Neighbor of Hercules in the night sky — 1998-09-18
• Vega's constellation — 1996-07-18
• Vega's constellation — 1995-10-03
• Neighbor of Cygnus — 1995-06-02
• Vega's constellation — 1995-02-09
• Vega's constellation — 1994-06-26