Gegenschein and
Airglow
Doug Zubenel captured this gegenschein in a sky ribbed by banded red
airglow generated by hydroxyl
radicals ~85 km high. The trails are geosynchronous
satellites. The satellites show as trails because the camera was guided on the stars for the exposure.
Imaged at the 24th
annual Okie-Tex Star Party located in Cimarron County, Oklahoma on
the morning of October 10, '07. Canon Digital Rebel XTi (Hutech modified
for astrophotography) with a Nikkor fisheye.
Image ©Doug Zubenel, shown with permission.
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