Super? Moon

November Moon, Half Dome from Tunnel View, Yosemite
Sony a7R V
Sony 200-600 G
Sony 1.4x teleconverter
ISO 200
f/9
1/80 second

This week’s full moon was a “supermoon”—or, as the media frequently proclaimed, “The biggest moon of 2025!” And while that is technically true, the size difference between a super and average moon is barely perceptible.

So, as a public service, I’ve dusted off and updated a prior article explaining the supermoon phenomenon (any hyperbole)—and what better time to share it than just days after photographing the November supermoon?

What’s the big deal?

So what exactly is so “super” about a “supermoon?” Answer: Not much. Or, maybe a better way to answer the question would be: When presented with a random series of full moon images, would you in fact be able to identify the supermoon? Doubtful. So why the media frenzy? And why do we see so many huge moon images every time there’s a supermoon? So many questions….

Celestial choreography: Supermoon explained

To understand what a supermoon is, you first have to understand that all orbiting celestial bodies travel in an ellipse, not a circle. That’s because, for two (or more) objects to have the gravitational relationship an orbit requires, each must have mass. And if they have mass, each has a gravitational influence on the other. Without getting too deep into the gravitational weeds, let’s just say that the mutual influence the earth and moon have on each other causes the moon’s orbit to deviate ever so slightly from the circle it seems to be (without precise measurement): an ellipse. And because its orbit isn’t round, as the moon circles Earth, its distance varies with the position in its orbit.

An orbiting object’s closest approach to the center of its ellipse (and the object it orbits) is at perigee; its greatest distance from the ellipse’s center is apogee. And the time it takes an object to complete one revolution of its orbit is its period. For example, earth’s orbital period around the sun is one year (365.25-ish days), while the period of our moon’s orbit is slightly more than 27 days.

But if the moon reaches perigee every 27 days, why don’t we have a supermoon every month? That’s because we’ve also added “syzygy” to the supermoon definition. In addition to being a great Scrabble word, syzygy (though it would cost you 2 blank tiles) is the alignment of celestial bodies—in this case it’s the alignment of the sun, moon, and earth (not necessarily in that order). Not only does a supermoon need to be at perigee, it must also be syzygy.

Syzygy happens twice each month, once when the moon is new (moon between the sun and Earth), and again when it’s full (Earth between the sun and moon). While technically a supermoon can also be a new moon, the full moon that gets all the press because a new moon is lost in the sun’s brightness and never visible, so no one cares. Since Earth circles the sun while the moon revolves around Earth, to achieve syzygy, with each orbit the moon has to travel a couple extra days to catch up. That’s why the moon reaches perigee evey 27 days, but syzygy comes every 29.5 days—the moon’s distance from earth is different with each syzygy because it comes at different points in the orbit.

The view from earth: Supermoon observed

While lunar perigee, apogee, and period are precise terms that can be measured to the microsecond, a supermoon is a non-scientific, media-fueled phenomenon loosely defined as a moon that happens to be at or near perigee when it’s full. To you, the viewer, a full moon at perigee (the largest possible supermoon) will appear about 14% larger and 30% brighter than a full moon at the average distance. The rather arbitrary consensus definition of the distance that qualifies a moon as a supermoon is a full moon that is within 90 percent of its closest approach to earth.

I really doubt that the average viewer could look up at even the largest possible supermoon and be certain that it’s larger than an average moon. And all those mega-moon photos that confuse people into expecting a spectacular sight when there’s a supermoon? They’re either composites—a picture of a large moon inserted into a different scene—or long telephoto images. (I don’t do composites, but they’re a creative choice that I’m fine with others doing as long as they’re clearly identified as composites.)

For an image that’s not a composite, the moon’s size in the frame is almost entirely a function of the focal length used. I have no idea whether most of the moons in the full moon gallery below were super, average, or small.

Can you identify the supermoon?

Magenta Moonrise, Tunnel View (El Capitan and Half Dome), Yosemite

November Moon, Half Dome from Tunnel View, Yosemite

Well, if you said the big moon is a supermoon, you’d be right. But it’s kind of a trick question, because these are both images of Tuesday’s supermoon. The size difference is entirely a function of the focal length I used: around 100 mm for the small moon, more than 800 mm for the large one. What these images also make clear is that what I gain in moon size, I lose in field of view—you can’t have both. So when you see a wide angle scene with a huge moon, don’t think supermoon, think composite: a big moon dropped into a wide scene. Or worse still: AI. (Yuck.)

Every full moon is super

As far as I’m concerned, a rising or setting full moon is one of the most beautiful things in nature. But because a full moon rises around sunset and sets around sunrise, when most people are eating dinner or sleeping, seeing it is often an accident—maybe the moon catches your eye as you walk out of the store, or you spot it in near the horizon when your car rounds a bend. But viewing a moonrise or moonset doesn’t need to be an accident. There’s loads of information available online that will tell you which night to look for a full moon, and the general time and direction to look. And for people like me, who try to photograph moonrises and moonsets around an alignment with a terrestrial feature, there is also slightly more technical info that enables more precise planning.

About this image

Which brings me to this week’s image (images), captured Tuesday evening from my very favorite location to view a moonrise: Tunnel View in Yosemite. Why is Tunnel View my favorite moonrise location? Because I can’t think of a better combination beautiful subjects and distant view (nearly 9 miles to Half Dome), that allows me to photography the moon large with with a long telephoto lens and include a striking foreground subject. And if I just want to use the moon to accent a broader scene, the wide angle view at Tunnel View is not too shabby either.

As with most of my moonrise images, this one had been on my radar for over a year. And like many of my moonrise opportunities, I scheduled a workshop so I could share it with other enthusiastic nature photographers. But, since I don’t care about supermoons, I had no idea this November full moon would be a supermoon—and as I grew tired of hearing in the preceding weeks, the largest full moon of 2025! (Yawn.)

The way this month’s full moon set up, I was able to get my group a couple of practice moonrises from other Yosemite locations leading up the Tuesday moonrise—one with a reflection of Half Dome, and another from Glacier Point. Not only did they lear exposure and processing techniques that allow the capture of lunar and landscape detail with a single click, they got beautiful (albeit wider, with a small moon) moon images. I also demonstrated in a training session how I plot the moonrise (without using celestial plotting apps like Photographer’s Ephemeris and Photo Pills).

There’s often drama surrounding an impending moonrise as I stress about forecasts that promise clouds, or a sky filled with more clouds than forecast. This year, despite the threat of rain the following day, the Tuesday evening forecast was clear skies. And true to expectations, the entire afternoon was cloud free.

I got my group up to Tunnel View about a half hour before the moon’s expected arrival, so we all had plenty of time to get set up and settled in. About half of the group joined me on a granite slab above the Tunnel View parking lot, with the rest of the group setting up with my brother Jay and the hoards of other photographers at the wall in front of the parking lot (the standard Tunnel View vista).

I had two tripods set up: one with my (big and sturdy) RRS TVC-24L, with my Sony a7R V and 1.4X teleconverter; one with my Sony a1 and 100-400. My plan was to switch between the two bodies, and to switch out the 200-600 for my 24-105 once the moon separated from the landscape. In other words, I’d be using the a1 with the 100-400 for the entire shoot, and the a7R V with the 200-600 (first) and 24-105 (after a few minutes).

As we waited, I reminded my group that the moon would appear just a little left of Half Dome at around 4:45 (about 15 minutes before sunset), plus/minus 5 minutes. I also told my group that, depending on their camera and metering skills, we’d be able to continue photographing up to 15 minutes after sunset before the foreground became too dark to capture both lunar and landscape detail with one click. The moon arrived right on schedule, right around 4:44 and we were in business….

So maybe the best thing to come of the recent supermoon hype is that it’s gotten people, cameras or not, to appreciate the beauty of a full moon. If you like what you see, mark your calendar for every full moon and make it a regular part of your life—you won’t be sorry.

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Tunnel View Moonrise Collection (Super and Otherwise)

Click any image to scroll through the gallery LARGE

Nightfall, Full Moon and Yosemite Valley, Yosemite

November Moon, Half Dome from Tunnel View, Yosemite

Lunar Kiss, Crescent Moon Over Half Dome and Sentinel Dome, Yosemite

Lunar Landing, El Capitan, Yosemite

Through the Clouds, Tunnel View Moonrise, Yosemite

Massive Moonrise, El Capitan, Yosemite

Moonrise, Half Dome, Yosemite

Moonrise and Clouds, El Capitan, Yosemite

Moon’s Rest, Cloud’s Rest, Yosemite

Moonrise and Clouds, Tunnel View, Yosemite

Parting the Clouds, Yosemite Valley Moonrise

Magenta Moonrise, Yosemite Valley, Yosemite

Big Moon Rising, Tunnel View, Yosemite

Winter Twilight Moonrise, El Capitan and Half Dome, Yosemite

Lunar Arrival, Half Dome, Yosemite

Twilight Moonrise, Half Dome and Bridalveil Fall, Yosemite

New Day, Half Dome and Crescent Moon, Yosemite

Lunar Arrival, El Capitan and Clouds Rest, Yosemite

December Moon, Half Dome, Yosemite

Magenta Moonrise, Tunnel View (El Capitan and Half Dome), Yosemite

Winter Moonrise, Full Moon and Half Dome, Yosemite

Moon and Morning Star, Yosemite

Twilight Moonrise, Half Dome, Yosemite

Sunset Moonrise, Tunnel View, Yosemite

Winter Supermoon, Half Dome, Yosemite

Moonrise, El Capitan and Cloud’s Rest, Yosemite

Moonrise, Horsetail Fall and Half Dome, Yosemite

Moon and Mist,Tunnel View, Yosemite

Daybreak, El Capitan and Half Dome, Yosemite

Sunset Moonrise, Yosemite Valley, Yosemite

Moon!, Half Dome, Yosemite

Magenta Moonrise, Yosemite Valley, Yosemite