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Frank:

I'm not with you yet. At totality, only the corona is visible, and so the
light received is significantly reduced. It's easy to look at that with
the naked eye or with binoculars. The difference between the last
millisecond of partiality and totality is gigantic. Just a sliver of the
sun is too bright, but when only the corona is visible, it's quite easy
to look at.

Our next eclipse will be next month near Iwo Jima, and will be over six
minutes in duration--the longest of the century. What that means is that
the moon is much closer, and so it will blank out more of the sun. I
think that means that we will see less corona.

And I have to correct myself about seeing sunspots during totality. Only
the corona is visible, along with solar flares.

As far as seeing Baily's beads and the "diamond ring," they are such
fleeting images that you have to be totally attentive to see them. And
the brightness increase immediately afterwards is blinding enough that
you naturally look away. The diamond ring is the first thing seen at
totality, the sun finding a gap in the lunar surface to shine through.
Again, it is of very short duration, so I don't think there is any danger
there.

Aren't our reflexes adequate safeguards? When the sun is too bright, it
seems like I automatically look away.

Jim Wilson
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