In tune with Neptune

With a 21.3-inch diameter and placed 31.7 miles from the sun in Presque Isle and having many moons too small to be presented at this scale, this stormy mystery orb also hints at the vast span of our solar system.

By this point in the drive, I’m really struck by the emptiness of the solar system and the space beyond. It’s essentially a vast, overwhelming nothingness. These are like pins in the proverbial haystack. And then, take heed of the incredible balance of forward motion and the sun’s gravity holding each one in place.

Science can attempt to answer the “How” in our ponderings, but as for the “Why,” if one even exists? That would mean facing questions of religion or theology. I’m not even touching on the mythological dimensions of these specks in the night sky.

Is it all an accident or some intentional mathematical outcome? Hmm, is there a neo-Calvinist turn in this thinking? We have miles to go yet.

In my previous visit to Aroostook County, I remember my amazement at passing this puzzling presentation only to encounter Saturn about 20 minutes later. Now I know it wasn’t one person’s quirky obsession.

Uranus, if you’re interested

Supposedly my Zodiac identity, and likely not yours, the model sits 20.7 miles from the sun model at the bigging of the display. Here its diameter is 22 inches.

The reason for the angled arm that lifts the planet is to present the axis with its extreme tilt, pointing its North Pole permanently toward the sun.

And we think a midnight sun at the height of summer’s a big deal? How about the endless darkness at the South Pole?

When you stop to think about it, the labor and care supporting this solar system presentation is astonishing. Just whose flash of inspiration came up with the calculations of our central star and its orbiting bodies, starting by placing Earth a mile from the sun?

And then came all the craftsmanship not just with the heavenly bodies but also the concrete bases and metal arms plus landscaping and the willingness of landowners to make room for the displays on their properties and tourists poking around. In all, 700 volunteers were involved one way or another.

For a large county with a small population, it was a truly astronomical undertaking. And there’s more …

Unmistakably Saturn

Getting further out on our solar system journey, we come to the dramatically ringed planet. Sitting 9.7 miles from Aroostook County’s model sun in Presque Isle, its diameter here is 51.9 inches but the outer ring extends the diameter to 117 inches – nearly 12 feet.

Of its many moons, only Titan is large enough to be displayed on this scale.

 

Jupiter, by Jove

The largest planet in our solar system represents a gap between the cluster of planets closest to the sun and those beyond. At 5.2 miles from our model sun on our astro-scavenger hunt, we’re finally getting some size. This one’s a bit wider than a five-foot arm span – it’s 61.4 inches – like a really big beach ball. And its four largest moons are Io, 1.6 inches; Europa, 1.3; Ganymede, 2.3; and Callisto, 2.1.

Remember, this is a scale of one to 93 million. As inconceivable as that seems.

Ceres, as a surprise

At 3/8 of an inch in the scaled solar system – that is, a steel ball bearing – this is the largest object in an asteroid belt between Mars and Jupiter.

The model was erected after the rest of the Aroostook system was in place.

Did you even know about this body? Hate to admit, but I didn’t.

 

Mars without Martians

At 1.4 miles from the sun in our scale, Mars is about half the size of Earth and has two moons that are too small to be presented in this display.

The angled post in the crescent, as we were learning, represents the planet’s tilt in its orbit, the major factor that gives us our seasons.

By this point in our drive, we were beginning to catch on to what we were looking before rather than passing by and having to circle about. The game now became who would spot the next stop first.

And our moon

In our eyes, in the perspective of gazing from Earth, the sun and full moon appear roughly the same size.

Not so in an actual size comparison.

The model, 1½ inches in diameter, is a fiberglass covered golf ball. Remember how big the sun was, back in the science building?

My, what the miles can do.