Periodic occurancethis event occurs in india during a particular festive season aroud dec-jan..people go to this temple called shabarimala in kerala state(india)around this particular time of the year,when at around 6:30 in the evening u can see a circular object called "makara jyothi" is seen in the sky...legend has it that a particular god of this area promised his people to visit them at this time of the year...i personally believe it to be some sort of a UFO thats periodic..people gather in lakhs to see it..it s occuring since hundreds of years...so i cant give a specific date..anybody who reaches this place around this time of the year can see it.somehow people doing UFO researches have ignored it..