| Night Time: | All day |
|---|---|
| Sunset: | None |
| End of Twilight*: | Dec 18 at 12:54 pm |
| Start of Twilight*: | Dec 19 at 10:55 am |
| Sunrise: | None |
⚠ Longyearbyen has polar night
Comet Watch: Latest News as 3I/ATLAS Nears Earth
Interstellar comet 3I/ATLAS reaches its closest point to Earth on December 19. We caught up with the team at the Institute of Astrophysics in Santiago, Chile.
Our Interactive Night Sky Map simulates the sky above Longyearbyen. The Moon and planets have been enlarged slightly for clarity. On mobile devices, tap to steer the map by pointing your device at the sky. Need some help?
Tonight's Sky in Longyearbyen, Dec 18 – Dec 19, 2025
Jupiter rise and set in Longyearbyen
Up all night.
Jupiter is up all of the polar night.
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Saturn rise and set in Longyearbyen
Up some of the night.
Saturn is visible more than 9 hours during the polar night. It is quite close to the horizon, making it fainter because the light has to cover a larger distance when traveling through the Earth's atmosphere. Make sure to get an unobstructed view.
Thu, Dec 18 ↑12:59 pm
Thu, Dec 18 ↓10:49 pm
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Uranus rise and set in Longyearbyen
Up all night. Bring binoculars.
Uranus is up all of the polar night. You may need binoculars.
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Neptune rise and set in Longyearbyen
Up some of the night. Use binoculars.
Neptune is visible more than 11 hours during the polar night. Very faint, use binoculars.
Thu, Dec 18 ↑12:25 pm
Thu, Dec 18 ↓11:49 pm
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Planets Visible in Longyearbyen
| Planetrise/Planetset, Fri, Dec 19, 2025 | ||||
|---|---|---|---|---|
| Planet | Rise | Set | Meridian | Comment |
| Mercury | Down all day | Thu 10:35 am | Down all night, not visible | |
| Venus | Down all day | Thu 11:34 am | Down all night, not visible | |
| Mars | Down all day | Thu 12:18 pm | Down all night, not visible | |
| Jupiter | Up all day | Thu 1:49 am | Perfect visibility | |
| Saturn | Thu 12:59 pm | Thu 10:49 pm | Thu 5:54 pm | Average visibility |
| Uranus | Up all day | Thu 9:51 pm | Fairly good visibility | |
| Neptune | Thu 12:25 pm | Thu 11:49 pm | Thu 6:07 pm | Difficult to see |
