MCP For Claude Marketplace
Constellation Locator

Constellation Locator MCP Connector for Claude

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Calculate real-time constellation visibility, transit times, and celestial profiles.

3 tools Official Updated Oct 1, 2026 Official Vinkius Partner
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Connect your AI agent to the celestial sphere. This MCP server provides precise astronomical calculations for observers on Earth. Use get_visible_constellations to see what is currently above your horizon, get_constellation_transit_details to find when a star pattern reaches its highest point, or get_constellation_profile to learn about specific IAU constellations. It calculates local sidereal time, altitude, and azimuth to provide accurate stargazing data.

starsskycelestialastronomystargazing

3 tools expose this connector's capabilities to your AI agent.

get_visible_constellations

Ensure all coordinates and dates are provided. Identifies which constellations are currently above the horizon for a specific observer at a specific time

get_constellation_profile

Provide the IAU name of the target constellation. Retrieves the fundamental characteristics and visibility classifications of a specific constellation

get_constellation_transit_details

Provide the target constellation name and observation date. Finds the specific time when a requested constellation will reach its highest point (transit) in the sky

See how to talk to your AI agent using Constellation Locator.

What constellations are visible from London right now?

Currently, Orion, Taurus, and Ursa Major are visible above the horizon in London.

When will Cassiopeia reach its highest point tonight in New York?

Cassiopeia will reach its transit point at 02:15 AM local time with a maximum altitude of 72°.

Tell me about the constellation Lyra.

Lyra is a small constellation in the northern sky, known for the bright star Vega. It is a seasonal constellation best viewed during summer months.

Calculations are based on the observer's precise latitude and longitude, using local sidereal time to determine the exact position of constellations relative to the horizon.

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