Here's why:
* Solstice refers to the longest day of the year (summer solstice) or the shortest day of the year (winter solstice). The full moon's occurrence close to the solstice is a coincidence and doesn't have any astronomical significance.
* Full moons happen roughly once a month due to the moon's orbit around Earth. There's nothing unique about a full moon occurring near a solstice.
What might have been interesting about the June 2016 full moon:
* Visibility: The full moon's visibility might have been enhanced due to its proximity to the solstice, offering a longer period for skywatching.
* Lunar Eclipses: If a lunar eclipse coincided with the full moon, it would have been a significant event for astronomers and skywatchers. However, there was no lunar eclipse on June 20, 2016.
In summary: The solstice moon of 2016 was a regular full moon, and its occurrence near the solstice had no special significance for astronomers or skywatchers beyond the potential for better visibility due to the longer daylight hours.