Planetarium

Explore stars, constellations, and deep-sky objects.

Observing location Reading selected location…

Observing date & time Loading…

Date

Time

Drag to look around · Scroll to zoom

Object Explorer

Object Information

No object selected

Select a star, planet, constellation, or deep-sky object in the planetarium to explore its details.

Initializing Ephemeris Planetarium…

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Observing Location

Choose a saved location or find a new observing location.

City

ZIP Code

Latitude

Longitude

Latitude —

Longitude —

Ephemeris will use your browser’s location to estimate your position.

Ephemeris Location Intelligence

Resolving coordinates…

Getting started…

1 Coordinates

2 Timezone

3 Elevation

4 Light Pollution

5 Bortle / SQM

6 Sky Directions

7 Save Profile

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