Blue-Hour at the Observatory

Lights from ... the 1.5-meter SMARTS Telescope

As the night falls, astronomers still have a long day ahead! The blue-hour triggers their preparation steps for the full night of observations.
This picture was taken during a pretty cold winter night at the Cerro Tololo Inter-American Observatory in Chile. The bright dot in the sky is Venus.

Technical Details....

Canon Rebel T5i + Sigma Art 18-35mm f/1.8 lens + tripod
→ 5 different exposures (HDR)
→ ISO 100
→ 18 mm
→ f/7.1
Lightroom editing
Location : CTIO, Coquimbo Region, Chile