View Full Version : Tuesday Trivia: Moon

Star lover
January 30th, 2018, 07:56 AM
Tomorrow morning is the second full moon in January, this full “supermoon” is also a “Blue Moon,” although much of the western United States will enjoy watching it turn a shade of red as it becomes obscured in a total lunar eclipse. Which is called Super Blue Blood Moon.

Blue Moon: This part of the description actually has nothing to do with the Moon’s color. A Moon is considered a “Blue Moon” when it’s the second full Moon in a calendar month. This doesn’t happen very often since full Moons roughly happen every 29.5 days. January began with a full Moon on the 1st, so the month will close out with one, too.

Blood Moon: The term “Blood Moon” is used to describe a total lunar eclipse, because it causes the Moon to turn a dark reddish color. This happens whenever the Earth passes directly between the Sun and the Moon, and the Moon falls into our planet’s shadow, or umbra. The Moon doesn’t go completely dark, though: the Sun’s light still manages to shine onto the lunar surface, but it will appear mostly reddish-orange, thanks to a phenomenon known as “scattering.”


Super Moon: Not only is this a full Moon, but it’s technically a supermoon as well, meaning it will be closer to the Earth than usual. The Moon doesn’t orbit our planet in a perfect circle, but follows more of an elliptical path, so its distance from Earth varies. Supermoons occur whenever a full Moon is closest to Earth on its orbit, making it about 14 percent bigger and 30 percent brighter than full Moons that are the farthest away from Earth.


When can you see it? The Super Blue Blood Moon can be seen on the morning of January 31st in North America and Hawaii, however the view will be better for those on the West Coast of the US. The early stages of the eclipse will just be getting underway when the Moon sets on the East Coast.


Skygazers in Australia and eastern Asia will be able to watch the event on Wednesday night as the moon rises.

However, only some parts of Australia will experience the lunar triple threat. Australia’s eastern states will not experience a blue moon because those areas observe Daylight Saving Time, which pushes the full moon and the lunar eclipse to Thursday morning on Feb. 1 and thus the next month and out of blue moon territory. Still, they will have a front-row seat as the moon goes red.

Unfortunately, the eclipse will not be visible from the European or African continents as they will already be in daylight during these hours.

The next occurrence of this combination of circumstances will happen in 2027. The last occurrence was 150 years ago! So enjoy it now!

If you're not able to view it in person, NASA is going to live stream it, staring at 5:30 a.m. ET January 31:


January 30th, 2018, 09:34 AM
Hence the expression, "Once in a blue moon" when speaking of something that seldom happens.

January 30th, 2018, 11:10 AM
Thanks , for once in the blue moon , info! :)

January 30th, 2018, 03:39 PM
thank your for the great information!