Young Moon and Venus Conjunction Lights Up Western Sky
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- The moon will be just over three days old with only 11% of its visible surface illuminated when it joins Venus in the western twilight on 17 June 2026.
- Venus will burn brightly less than a moon's width away from the lunar sliver, with the pair situated in the constellation Cancer, the crab.
- The chart shows the view looking west from London at 21:45 BST on 17 June 2026, where the pairing will sit low on the horizon, rewarding observers with the clearest western skyline.
- Earthshine — sunlight reflected from Earth onto the moon's dark portion and back — should become visible in the unilluminated disc as the sky darkens after sunset.
- Binoculars can enhance the view, but observers must wait until the sun has fully set below the horizon, since even a brief glimpse through optics can permanently damage eyesight.
- Southern hemisphere viewers get a better showing, with the conjunction occurring earlier in the evening and positioned higher in the sky than from the UK.
Why it matters: For UK stargazers, the pairing sits so low on the western horizon that unobstructed sightlines will be essential, while southern hemisphere viewers get a more comfortable, higher-in-the-sky show — a rare, naked-eye-friendly twilight event that rewards planning around the 21:45 BST peak on 17 June 2026.
