Nundina › Discover calendars › Planet Oppositions, Conjunctions & Supermoons calendar › ☿ Mercury Greatest Western Elongation☿ Mercury Greatest Western Elongation15 July 2027Mercury reaches its widest angle from the Sun, about 21 degrees west, in the morning sky before sunrise. This is the best time to spot it. Date is the UTC day.Planet Oppositions, Conjunctions & Supermoons calendarMore from this calendar