A silhouette of a small bare-branched tree standing on a hillside in a park, with bright red streamers of aurora borealis in the clear nighttime sky dotted with stars behind the tree, plus city lights beyond the park in the lower portion of the photo.
Streamers of bright red aurora borealis in the clear nighttime sky with diffuse green aurora beneath the red streamers, plus trees and city lights illuminated below the aurora sky in the lower portion of the photo.
The silhouette of a small, bare tree standing on a hillside in a park with streamers of bright red and diffuse green aurora borealis in the background sky dotted with stars behind the tree, with city buildings and street lights in the lower background under the aurora sky.
Bright pink aurora borealis in the clear nighttime sky dotted with stars behind the mostly bare limbs of a tall, multi-trunked cottonwood tree standing in a park, with other trees and some street lights in the background.