Explanation:
Medieval
Albrechtsberg
castle is nestled in trees
near the northern bank of the river Pielach
and the town
of Melk, Austria.
In clearing night skies on August 12 it stood under
constellations of the northern summer,
including Aquarius, Aquila, and faint, compact
Delphinus
(above and right of center) in this west-looking skyview.
The scene also captures a bright meteor above the castle walls.
Part of the annual
perseid meteor shower, its trail points back
toward the heroic constellation Perseus high above the horizon in the
early morning hours.
Entering the atmosphere at about
60 kilometers per second, perseid meteors are swept up dust grains
from the tail of
comet Swift-Tuttle.