Selecting outdoor furniture for a rooftop observatory requires careful consideration of durability, comfort, and aesthetics. Start by choosing weather-resistant materials like teak, aluminum, or synthetic wicker, which can withstand sun, rain, and wind. Opt for lightweight yet sturdy pieces that won’t damage the rooftop surface. Comfort is key for stargazing sessions, so include plush cushions or reclining chairs. Modular or foldable designs offer flexibility for different gatherings. Finally, enhance the ambiance with soft lighting and cozy throws to create an inviting space for relaxation and celestial observation. Prioritize low-maintenance options to ensure long-lasting enjoyment of your rooftop retreat.