Sunset 4:39 PM, astronomical dark 6:14 PM, waning crescent moon at 7%.
From Arlington Heights, IL (42.0884°, -87.9806°), the sun sets at 4:39 PM. Astronomical darkness — the point where the sky is as dark as it will get — begins at 6:14 PM and lasts until 4:56 AM.
The moon is a waning crescent at 7% illumination, currently 32° above the southwest horizon. That is dim enough to leave the sky usefully dark.
In the middle of the night, Uranus, Saturn, Neptune, Mars are above the horizon.
| Planet | Position | Magnitude | Sets |
|---|---|---|---|
| Uranus | 63° southeast | 5.6 | 8:18 AM |
| Saturn | 39° southwest | 0.4 | 3:29 AM |
| Neptune | 34° southwest | 7.8 | 2:56 AM |
| Mars | 2° east | 0.8 | 1:28 PM |
The times above are computed for Arlington Heights, IL and update hourly. For the sky as it is right now — with constellations, satellites tracked in real time and any active meteor showers — open the live map.
Satellite passes over Arlington Heights, IL: next visible passes →