Various alignments with the sun have been noted at the main temple Hagar Qim. At dawn on the summer solstice, the sunlight passes through a hole, known as the 'oracle hole', and enters into an apse of the temple. At sunset on the same day, the sun sets in line with the entrance of the apse with the raised floor, and lights up a small niche through a stone porthole.

Another alignment that has been observed here is the alignment of the main axis of the temple with the Northern and Southern maximum declination of the full moon. Since the cycle of the moon is very long, 18.6 years, this alignment may be coincidental. Yet it is curious that Hagar Qim is the only temple on the Maltese islands that has two entrances along its main axis, and that this alignment happens to be here!

There is a link with an explanation of each alignment. Click on the description (the text), to continue: