Photo credit: phys.org
October’s supermoon is set to be the closest of the year, coinciding with the appearance of a comet, providing a unique opportunity for stargazers this week.
As the third supermoon of four this year, it will reach a distance of 222,055 miles (357,364 kilometers) from Earth on Wednesday night, appearing larger and brighter than in the previous months of August and September. The full lunar phase will take place on Thursday.
Adding excitement to the night sky, comet Tsuchinshan-Atlas, discovered last year, has now become prominent in the Northern Hemisphere, captivating audiences who previously enjoyed its display in the Southern Hemisphere.
While the moonlight may obscure some details of the comet’s tail, NASA’s Bill Cooke encourages enthusiasts to venture outside after sunset to catch a glimpse. He noted, “Most astronomers dislike the full moon because its brightness disrupts the observation of other celestial objects. It’s challenging for us to praise it, even though it represents the biggest supermoon of 2024.”
If you can’t observe the comet this week, there’s no need to worry; the fourth and final supermoon of the year is expected to appear on November 15.
Understanding Supermoons
The term “supermoon” is more of a popular designation than a scientific one. It occurs when a full moon aligns closely with Earth’s orbit, happening about three to four times a year due to the moon’s elliptical path.
While a supermoon may not physically increase in size, it can give the illusion of being larger, though this difference is often very subtle to the naked eye.
Comparing the Supermoons of 2024
This year has featured a series of supermoons. The August supermoon was recorded at a distance of 224,917 miles (361,970 kilometers), while September’s was slightly closer at approximately 221,098 miles (356,045 kilometers) the night of September 17. That same night, a partial lunar eclipse was visible in various locations, casting a shadow on the moon.
The current supermoon is the closest of the year at 222,055 miles (357,364 kilometers), with the upcoming November supermoon at a distance of 224,853 miles (361,867 kilometers).
The Benefits of Stargazing
Experts note that only the most observant individuals can detect the minor differences between supermoons. However, the luminosity of a supermoon is more apparent; it can shine 30% brighter than an average full moon.
As nations, including the U.S., gear up for increased lunar exploration with both land missions and manned trips on the horizon, the call of the moon has never felt more enticing.
Source
phys.org