11. View the 360° sunset
During totality, take just a few seconds to tear your eyes away from the sky and scan the horizon. You’ll see sunset colors all around you because, in effect, those locations are where sunset (or sunrise) are happening.
12. Get a filter in advance
Cardboard “eclipse” glasses with lenses of optical Mylar cost about $2. Such a device — it’s not a toy — will let you safely look directly at the Sun. It filters out most of the light, all of the dangerous infrared (heat) and ultraviolet radiation, which tans our skin. Buy one well in advance, and you can look at the Sun anytime. Sometimes you can see a sunspot or two. That’s cool because to be visible to our eyes, such a spot has to be larger than Earth. Another safe solar filter is a #14 welder’s glass, which also will cost you $2. Wanna look cool at the eclipse? Buy goggles that will hold the welder’s glass. I’ve even seen people wearing whole helmets. Either those or goggles serves one purpose — you won’t need to hold the filter, so you can’t drop it.
13. No filter? You can still watch
Except during totality, we never look at the Sun. But what if you’ve forgotten a filter? You can still watch by making a pinhole camera. It can be as simple as two pieces of paper with a tiny hole in one of them. (Try to make the hole as round as you can, perhaps with a pin or a sharp pencil.) Line up the two pieces with the Sun so the one with the hole is closest to it. The pinhole will produce a tiny image, which you’ll want to have land on the other piece of paper. Moving the two pieces farther apart will enlarge the Sun’s image but will also lessen its brightness. Work out a good compromise.
14. Bring a chair
In all likelihood, you’ll be at your viewing site several hours before the eclipse starts. You don’t really want to stand that whole time, do you?
15. Don’t forget the sunscreen
Even though the eclipse happens in early April, you’ll be standing around or sitting outside for hours. You may want to bring an umbrella for some welcome shade, especially if you’re viewing the event from the Southwest. And if you see someone who has forgotten sunscreen, please be a peach and share.
16. Take lots of pictures
Before and after totality, be sure to record your viewing site and the people who you shared this great event with. Social media has become the preferred way to do this.
17. The time will zoom by
In the August 1980 issue of Astronomy magazine, author Norm Sperling contributed a “Forum” titled “Sperling’s 8-second Law” in which he tries to convey how quickly totality seems to pass. I’ll just quote the beginning here.
“Everyone who sees a total solar eclipse remembers it forever. It overwhelms the senses, and the soul as well — the curdling doom of the onrushing umbra, the otherworldly pink prominences, and the ethereal pearly corona. And incredibly soon, totality terminates.
“Then it hits you: ‘It was supposed to last a few minutes — but that couldn’t have been true. It only seemed to last eight seconds!’”
18. Bring snacks and drinks
You’re probably going to get hungry waiting for the eclipse to start. Unless you set up next to a convenience store, consider bringing something to eat and drink.
19. Not many people you meet will have seen totality
If you’re planning an event or even a family gathering related to the eclipse, consider this: Statistically, only a few percent of the people you encounter will have experienced darkness at noon. You will be the expert. A telescope equipped with an approved solar filter will help Sun-watchers get the most from the eclipse.
20. Invite someone with a solar telescope
In the event you’re thinking of hosting a private get-together, make sure someone in attendance brings a telescope with a solar filter. While it’s true that you don’t need a scope to view the eclipse, having one there will generate quite a bit of buzz. And you (or the telescope’s owner) can point out and describe sunspots, irregularities along the Moon’s edge, and more.