Orbis Moderandi Pétillant Naturel is a sparkling wine produced using the méthode ancestrale, also known as pétillant naturel or "pet-nat" in short. This ancient winemaking technique involves bottling the wine before primary fermentation is complete, allowing carbon dioxide produced during fermentation to naturally carbonate the wine. As a result, pet-nat wines are often characterized by their light effervescence and lively, sometimes slightly cloudy appearance. "Orbis Moderandi" could be a specific brand or label, though without further context, it's not possible to provide specific details. These wines are typically known for their fresh fruit flavors, vibrant acidity, and approachable, easy-drinking style.