The ‘super’ part of the phrase refers to a super moon, which occurs when the moon is closer to the earth than usual. Because the moon doesn’t orbit earth in a perfect circle, its distance from earth varies. A super moon occurs when a full moon is closest to earth on its orbit, making it about 14 percent bigger and 30 percent brighter than a normal full moon.
The ‘blue’ part of the description has nothing to do with the moon’s colour. A moon is considered a ‘blue moon’ when it’s the second full moon in a month, which is rare since full moons happen roughly every 29.5 days, hence the saying “once in a blue moon.”
The term ‘blood moon’ is used to describe a lunar eclipse, which is when the earth passes directly between the sun and moon, and the moon falls in earth’s shadow. The moon doesn’t go completely dark, as the the sun’s light still shines onto the moon’s surface, but it appears a reddish-orange colour.
Greg Stevens captured this incredible photo of the blood moon last week. He says he had set up his gear and was waiting for the cloud cover to clear before he snapped this picture around 2.15am on Thursday morning. “I was hoping to get a time lapse, but that didn’t happen. However, I’m pretty happy I got this shot.”Since you’re here… we have a small favour to ask. More and more people want the Post than ever but advertising revenues across the media are falling fast. And unlike many news organisations, we haven’t put up a paywall – we want to keep our journalism as open as we can. So you can see why we need to ask for your help. The Post’s independent, investigative journalism takes a lot of time, money and hard work to produce. With investigative reporting, we often don't know at the beginning how a story will unfold and how long it might take to uncover. This can mean it is costly – particularly as we often face legal threats that attempt to stop our reporting. But we remain committed to raising important questions and exposing wrongdoing. And we do it because we believe our perspective matters – because it might well be your perspective, too. If everyone who reads our reporting, who likes it, helps to support it, our future would be much more secure. For as little as NZ$5, you can support the Post – and it only takes a minute. Thank you. Support The Post