Dynamic Earth, Moon and ISS Views

Images by: The Earth and Moon Viewer (John Walker)
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The Earth – Position: above Whitehorse
Viewed from about the distance of the Moon

At perigee — its closest approach — the moon comes as close as 225,623 miles (363,104 kilometers). At apogee — the farthest away it gets — the moon is 252,088 miles (405,696 km) from Earth. On average, the distance from Earth to the moon is about 238,855 miles (384,400 km)


 Today’s Moon
as viewed from The Earth
The whole Moon

Current Position and orbital path of the ISS


The space station’s orbit takes it all around the globe so it may pass over you at times when it’s less visible, such as either in the middle of the day when it is too bright or the middle of the night when the sun is on the other side of the earth. The best sightings occur early morning before sunrise or in the evening shortly after sunset when the sky is dark but the sun can still reflect light off the metal structures of the space station.

The NASA ISS tracking page is now located at: http://spaceflight.nasa.gov/realdata/tracking/




How do I Spot The Station?

What does all this sighting information mean?

Time is when the sighting opportunity will begin in your local time zone. All sightings will occur within a few hours before or after sunrise or sunset. This is the optimum viewing period as the sun reflects off the space station and contrasts against the darker sky.

Visible is the maximum time period the space station is visible before crossing back below the horizon.

Max Height is measured in degrees (also known as elevation). It represents the height of the space station from the horizon in the night sky. The horizon is at zero degrees, and directly overhead is ninety degrees. If you hold your fist at arm’s length and place your fist resting on the horizon, the top will be about 10 degrees.

Appears is the location in the sky where the station will be visible first. This value, like maximum height, also is measured in degrees from the horizon. The letters represent compass directions — N is north, WNW is west by northwest, and so on.

Disappears represents where in the night sky the International Space Station will leave your field of view.

Astronomical Horizon