← THE ARCADE / STEVEN GREER / DARK SKY RUN
The Steven Greer Experience • Cabinet No. 2
The retreat costs thousands of dollars and it drives you into the desert. We are not disputing the desert. The review board has exactly one question, and it is a logistics question: could you have done this yourself, for free, tonight? You have a car, most of a tank, a map of your own county, and until moonrise.
ONE COUNTY • ONE TANK • UNTIL MOONRISETap a site to add it to tonight’s route · tap it again to drop it · the cards below have the numbers
It is a nine-step description of how much artificial light is in your sky, and it maps onto what you can actually see. The numbers below are the naked-eye limiting magnitude — the faintest star visible — which is the honest way to compare two sites.
| 1 — Excellent dark sky | mag 7.8. Zodiacal light, airglow, your own hand invisible against the sky. |
| 2 — Truly dark | mag 7.4. Milky Way casts a shadow. Rare, and usually far. |
| 3 — Rural | mag 7.0. Light domes on the horizon only. |
| 4 — Rural / suburban transition | mag 6.5. Milky Way still obvious overhead. This is the class most people can reach in under half an hour. |
| 5 — Suburban | mag 6.0. Milky Way weak or gone near the horizon. |
| 6 — Bright suburban | mag 5.5. No Milky Way. Clouds glow. |
| 7 — Suburban / urban | mag 5.0. The sky is grey-white to the horizon. |
| 8–9 — City | mag 4.5 and worse. You can read a newspaper by it. |
The step that buys you the most per mile driven is 5 to 4. That is where the Milky Way comes back. Going 4 to 2 is a real improvement and it usually costs you three hours of your life in each direction.
Your usable window runs from astronomical dusk (sun 18° below the horizon, the sky as dark as it will get) to moonrise. Every minute you spend driving after dusk is a minute subtracted from the only resource in this game. A Bortle 2 site three hours out can hand you less total darkness than a Bortle 4 site twenty-five minutes away, and the Bortle 4 site lets you leave after dinner instead of after a nap.
Not for the Moon, the planets, or double stars — those are fine in moonlight. For deep sky — galaxies, nebulae, the Milky Way itself — the moon is a catastrophe. A half-lit moon can brighten the whole sky by more than a magnitude, which is roughly the difference between a Bortle 4 site and a Bortle 6 site. It effectively drives you two classes back into town without your consent. Real observers plan deep-sky work around the new moon, or into the gap before moonrise, or after moonset. The board scores dark minutes because dark minutes are the scarce thing.
Altitude buys you transparency — less air, less haze — and it is a real but modest effect: a couple of thousand feet is worth a few percent, not a Bortle class. Horizon obstruction is worth much more. Most of what you want to look at spends most of its time below 40° of altitude, and the galactic centre sits low in the south. A ridge, a treeline, or a canyon wall on your southern horizon deletes more sky than the elevation gains back. A flat, open, mediocre field routinely outperforms a spectacular blocked overlook.
Your eyes need roughly 20–30 minutes in the dark before you are seeing anything like your best, and a single set of headlights, a phone screen, or a white flashlight resets a good part of it. Red light only, and site-hopping costs you the adaptation as well as the drive. Pick one place and stay in it.
Gates lock. Permits are sold from an office that shut at dinnertime. “Members only” means members only, at 11pm, to you, in the cold. A five-minute check of a park’s hours is worth more than any piece of equipment you own.
The sky is free. The parking is usually free. The dark is free. What you are actually buying, if you buy anything, is somebody telling you when to go — and that is a calculation, not a retreat.
Pick at least one site. Your own driveway counts as a plan.
The doctrine says the sky belongs to everybody and costs nothing. We accept the doctrine entirely. The board’s file concerns the four-figure invoice that has been stapled to it, and the specific claim that the dark you need is somewhere far away and expensive.
So: here is your county. Ten places you could stand tonight. Real light-pollution classes, real drive times, real horizons, real gates. You have most of a tank, the cash in your console, and the hours between astronomical dusk and moonrise.
Plot a route. Watch what the driving does to your window. Commit when you are ready, and the night will play itself out. Then the board will tell you what the best available answer was.