Rosario blinked; she'd spoken without thinking, and she hadn't expected Estella to shine the spotlight (or starlight) back on her. "I... no? Maybe? I just... like to understand things. Cepheids help us do that. And they're reliable. Polaris is key in celestial navigation, too." She felt like she wasn't really talking sense, and she took a sip of champagne to slow herself down. "What would you be? If you were a celestial body?"