What to See & When

Here you can find information on;
  • Today's weather forecast for Guernsey
  • Monthly highlights with Sky Charts to help you visualise what celestial bodies are visible
  • Yearly information on the sun, moon, planets and meteors
  • A glossary of astronomical terms used in the various pages
Sky Charts generated by Sky Safari, Simulation Curriculum Corp.

ISS Sighting Opportunites

Below is the latest information from NASA on possible sightings along with more detailed information about seeing ISS and other satellites from Guernsey jump to section.

Retrieved from: NASA Spot the Station on Tuesday 29th November 2022

The following ISS sightings are possible from Monday 28th November 2022 through to Friday 9th December 2022

Monday Nov 28, 2022 5:37 PM 5 min 56° 10° above W 24° above ENE
Monday Nov 28, 2022 7:14 PM 1 min 18° 10° above WNW 18° above WNW
Tuesday Nov 29, 2022 6:25 PM 3 min 65° 10° above WNW 65° above NW
Wednesday Nov 30, 2022 5:37 PM 5 min 63° 10° above WNW 25° above E
Wednesday Nov 30, 2022 7:13 PM 1 min 20° 10° above WNW 20° above W
Thursday Dec 1, 2022 6:25 PM 3 min 69° 10° above WNW 69° above SW
Friday Dec 2, 2022 5:37 PM 6 min 89° 10° above WNW 19° above ESE
Friday Dec 2, 2022 7:14 PM 1 min 17° 10° above W 17° above WSW
Saturday Dec 3, 2022 6:26 PM 4 min 35° 10° above W 30° above S
Sunday Dec 4, 2022 5:38 PM 7 min 51° 10° above WNW 10° above SE
Sunday Dec 4, 2022 7:16 PM 1 min 11° 10° above WSW 11° above SW
Monday Dec 5, 2022 4:50 PM 7 min 72° 10° above WNW 10° above ESE
Monday Dec 5, 2022 6:27 PM 4 min 17° 10° above W 10° above S
Tuesday Dec 6, 2022 5:38 PM 6 min 25° 10° above W 10° above SSE
Wednesday Dec 7, 2022 4:50 PM 6 min 36° 10° above W 10° above SE
Thursday Dec 8, 2022 5:40 PM 2 min 11° 10° above WSW 10° above SSW
Friday Dec 9, 2022 4:51 PM 5 min 17° 10° above W 10° above S
* Flyovers that will reach a Max Height of at least 40°, provide the best chance for a sighting opportunity because they are visible above most landscapes and buildings.

Visible passes of the International Space Station and other satellites

The International Space Station (ISS) regularly passes through our skies. It appears like a very bright star moving from west to east, at an angular velocity similar to a plane, and taking a few minutes to cross the sky. During morning passes, especially the very early morning ones, the satellite may be in the Earth’s shadow, and therefore invisible, for the first part of a pass. Similarly, the satellite may enter the Earth’s shadow during the late evening passes, and disappear from view. Note that many other, fainter, satellites are also visible. The ISS is by far the brightest, being as large as a football pitch. The much-hyped Humanity Star satellite is likely to be extremely faint – almost never visible to the naked eye.

Heavens Above

The link, left, will take you directly to a page, configured for the latitude and longitude of St Peter Port, Guernsey, on the excellent Heavens Above web site which provides up-to-date predictions of the ISS and many other satellites.

Then click on “ISS” for Space Station predictions. The table then shows the local time, altitude (in degrees above the horizon) and compass direction to look when it first becomes visible; the time, altitude and direction when it reaches maximum altitude; and the time, altitude and direction when it disappears. In the evening the “end” time may be when it disappears into the Earth’s shadow; in the morning the “start” time may be when it emerges from the Earth’s shadow.

Of special interest are flares from the ‘Iridium’ satellites. You can get more accurate predictions for these flares by changing the location on the Heavens Above web site to your Guernsey parish, or Alderney, Sark or Herm by clicking on the map below.

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Also see: NASA ISS sighting information for Guernsey.

Iridium 95 Satellite ISS & Endeavour ISS & Endeavour ISS & ATV Space Shuttle Atlantis Space Shuttle Atlantis ISS ISS Crossing Moon ISS Crossing Moon ISS Crossing Sun