Privacy Policy

Last updated: March 26, 2026

Overview

This policy explains what data Stellara handles, why it is handled, and how it is used. Stellara is a small independent astronomy platform with tools, community features, notifications, and an AI assistant.

Data We Collect

Account Data

  • Account identifiers (for example email, username, display name)
  • Authentication/session data required to keep you signed in
  • Profile fields you provide

Community Data

  • Posts, comments, reactions, and profile content
  • Uploaded media associated with your content

Tool and Usage Data

  • Location input and coordinates used for weather/astronomy tools
  • Basic request logs and error diagnostics used for reliability and abuse prevention

AI Assistant Data

  • Messages you send to the assistant
  • Conversation history needed for continuity
  • Usage counters for free/pro limits
  • Observing profile fields used to personalize answers (for example telescope and experience level)

Notifications

  • In-app notification records and read state
  • Email notification preferences and delivery metadata when email notifications are enabled

Why We Use This Data

  • To provide core platform features (login, tools, profiles, community)
  • To deliver and moderate community features
  • To power AI assistant responses and usage limits
  • To send notifications you requested
  • To detect abuse, debug issues, and keep the service stable

Third-Party Services

Stellara relies on external services. Relevant request data may be sent to these providers only as needed for feature operation.

  • Supabase: authentication, database, and storage
  • Groq: AI assistant inference
  • Open-Meteo and 7Timer: weather and seeing/transparency data
  • QWeather: astronomy times (sun/moon values through server proxy)
  • NASA APOD: astronomy picture metadata
  • CelesTrak: ISS orbital element data
  • Vercel: hosting and deployment runtime

Billing infrastructure exists in the codebase (Stripe integration), but user billing is currently not active for general users.

AI Processing Transparency

AI assistant messages are processed to generate astronomy responses and can be stored to preserve chat continuity and enforce limits. AI output can be wrong. You should verify important details independently.

Data Sharing and Sales

Stellara does not sell your personal data.

Retention

Data is kept for as long as needed to run the service, maintain account functionality, handle moderation/security events, and meet legal obligations. Retention varies by data type.

Your Rights

  • Request access to your account-related data
  • Request correction of inaccurate profile/account data
  • Request account/data deletion, subject to legal and operational constraints

Security Note

Reasonable security controls are used, but no web service can promise perfect security or uninterrupted availability.