Observation of the position of the Moon in real time
Visualize in real time the position of the Moon in the sky.
Moon
Our interactive sky map allows you to observe the position of the Moon, its illuminated surface and its movement in real time.
Observe its movement in the sky in real time depending on your location.
The Moon, the only natural satellite of planet Earth.
The Moon is at an average distance of about 380,000 km and circles the Earth in 27.3 days.
Due to its synchronous rotation with the Earth the Moon always shows us the same face.
On its visible side there are 'lunar seas' which are large dark plains formed by ancient volcanic flows. There are also impact craters observed.
Its gravitational influence is responsible for the tides on Earth.
When the Moon passes in front of the Sun by masking it, it causes a phenomenon called solar eclipse which partially darkens the sky for a few minutes.
It takes on a reddish color during lunar eclipses: when it passes behind and finds itself in the shadow of the Earth and certain conditions are met.
Sky map
See the starsWe reproduce the sky with the 8 planets of the solar system, the Moon, the Sun and the milky way.
We accurately calculate and display their apparent positions in the sky in real time, taking into account:
- local sidereal time of the selected observation location,
- celestial coordinates of the stars, proper motion, precession, nutation, and aberration of light,
- date and hour.
The celestial vault is delimited to reveal which celestial objects are currently visible in the sky.
The compass tells you which direction you are looking, you can select another city to observe the sky from its position.
Use the buttons to travel through time and observe how celestial objects move in the sky as the earth rotates.
Moon data
| Moon | Rotation period | Revolution period | Current Equatorial Position | Current Horizontal Position at Marseille |
|---|---|---|---|---|
| Moon The Moon is the only natural satellite of Earth. Visible in the night sky, it influences the tides | 27.32 days | 27.321582 days | Right ascension : 13ʰ49ᵐ24.5812440658ˢ Declination : -16°11′8.3866743363″ | Azimut : -67.80031441579439° Altitude : -0.3143620949183926° |
Deep sky
The deep sky is a set of celestial objects located outside the solar system.
It includes galaxies, nebulae, star clusters and quasars.
Observation equipment
Observing the night sky is a fascinating experience that allows discovering planets, stars, galaxies and nebulae visible from Earth.
To take full advantage of these observations, it is important to have the right astronomy equipment.
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