The night sky offers many captivating sights, and among them, the supermoon stands out. This phenomenon occurs when a full moon appears slightly larger and noticeably brighter than a typical full moon. Its accessibility makes it a popular celestial event.
What Makes a Supermoon Special
A supermoon occurs due to the Moon’s elliptical orbit around Earth. This means its distance from our planet varies. The point in its orbit where the Moon is closest to Earth is known as perigee.
A supermoon occurs when a full moon coincides with the Moon being at its perigee. While “supermoon” is not a formal astronomical designation, the technical term for this alignment is a perigee syzygy. During such an event, the Moon can appear up to 14% larger and 30% brighter compared to when it is farthest from Earth. This visual difference creates a notable and often photogenic display.
Key Details for Viewing
Timing and location are key for experiencing a supermoon. The most impressive views often occur when the Moon is low on the horizon, just after moonrise or before moonset. This positioning enhances the “Moon illusion,” an optical effect making the Moon appear significantly larger. You can check local moonrise and moonset times through astronomy websites, news outlets, or sky-watching applications.
Selecting an optimal viewing spot enhances the experience. Find a location with a clear, unobstructed view of the eastern horizon for moonrise or the western horizon for moonset. Open fields, hilltops, or higher floors of buildings provide good vantage points. Minimal light pollution from city lights will further enhance the Moon’s visibility and brightness.
Tips for an Optimal Viewing Experience
For optimal supermoon viewing, consider a few strategies. Observing with the naked eye is suitable for appreciating the Moon’s impressive size and brightness. Binoculars offer a closer look at the lunar surface, revealing craters and other features. Stabilizing binoculars by resting your arms or on a sturdy surface will provide a clearer image.
For photography, even a smartphone can capture good supermoon images. Use night mode settings and keep the phone steady, ideally with a small tripod or by bracing it. More advanced photographers can use a tripod and telephoto lens for detailed shots. Regardless of equipment, remember the perceived size difference might be subtle, but its increased brightness is consistently noticeable.