October 8, 2011 at
the ACA Observatory
View the Sun in H-α*
star, the Sun, with detail shown
only when the view is limited to the light of
Hydrogen-alpha (H-α) at 656.28 nm (6562.8 Ångstroms)
provided by specially equipped solar telescopes.
for a current movie of the Sun in H-α
for a current image of the active sunspots
Here's what we have on tap for this event:
At least two H-α (Hydrogen-alpha) telescopes,
at least one white light filtered telescope,
at least one radio telescope
and grilled hotdogs while they last.
And the best free coffee in Akron, too!
* What is
Hydrogen-alpha light? See:
H-alpha (Hα) is a specific red visible spectral line created by
hydrogen with a wavelength of 656.28 nm, which occurs when a
hydrogen electron falls from its third to second lowest energy