- #LockdownAstronomy, Southern Hemisphere Sky Events

Look up! International Space Station visible in evening sky.

(Posted 15 April 2020) Mid-April 2020 presents a wonderful opportunity to see the International Space Station pass silently overhead. There are great viewing opportunities if you live in Brisbane, Cairns, the Gold Coast or Canberra, Australia.

Caption: Image credit: STS-119 Shuttle Crew, NASA

While the International Space Station does regularly pass over Australia, these passes usually occur during the day or in the middle of the night. This means that the station is not visible.

Caption: A short time exposure image taken in evening twilight showing the Space Station moving. The International Space Station looks like a slowly moving star to the unaided eye. Image credit: (c) Josie Floyd March 2018.

For the International Space Station to be visible for an Earth bound observer, it has to be a pass that occurs during the morning or evening twilight period. That way, the station is lit up by sunlight, but the observer on the ground is in darkness or semi-darkness.

LocationDates visible
Brisbane16 – 22 April 2020
Cairns15 – 19 April 2020
Canberra17 – 24 April 2020
Gold Coast16 – 22 April 2020

The above links take you to the highly recommended Heavens-Above website which generates customised viewing information for different locations. This includes a sky chart which provides a visual guide of when and where to look. Keep in mind that the charts are designed to be held over your head. If your location is not listed above, go here for tips on how to customise the information for where you live. Depending on your location, the International Space Station will be visible in the morning and/or evening sky.

If you haven’t seen the station pass overhead before, you are in for a treat. On a good pass, the International Space Station rivals the planet Venus for brightness. If you are really lucky, you will see a dazzling flare of light if the sunlight happens to reflect off the station’s giant solar panels at the right angle.

About Josie Floyd

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