A total lunar eclipse of a Supermoon, described as a rare cosmic event, is expected to happen on before September ends. This is apparently the first time it happened again in 30 years.

Since 1910, it was reported to have occurred only five times — 1928, 1946, 1964 and the last in 1982 — and the next time it will happen again will be in 2033.

The upcoming lunar eclipse is considered special by many experts because it is the biggest eclipse people will experience thus far, except of course for those who have witnessed it in 1982.

The closest lunar perigree will occur a minute short of the 10:47 p.m. EDT mid-eclipse mark. According to Sky & Telescope, this means the disk of the moon will appear to be 13 percent larger in diameter compared to eclipse back in April.

The occurrence is also referred as Blood Moon. Dr. Jackie Faherty, a scientist at the American Museum of Natural History and astronomer at Carnegie Institution for Science in Washington, D.C., said that the kind of red the moon would turn into depends on several factors, including the particles in the atmosphere, Daily News reported.

"If there is a really good volcanic eruption, then you will get a deep red color," Dr. Faherty said.

In Canada, this lunar eclipse will be the last for this year, and whether the eclipse appears partial or full is dependent upon the location, Global News learned.

NASA reportedly said that the partial eclipse would begin at 9:07 p.m. on the East Coast. Approximately an hour later at 10:11 p.m EDT, the total eclipse will begin and will end at 12:50 a.m.

In addition to the said report, the phenomenon will be visible in the United States on the night of Sept. 27. Meanwhile, in Asia and Europe, it will in the early morning of Sept. 28.

There's not going to be an event like this in 30 years so make sure to mark your calendars.