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5 Must-See Celestial Events This Autumn

From meteor showers to planetary alignments - don't miss these night sky spectacles

BBC News3 min

1Pleiades Star Cluster Kicks Off Autumn

As nights lengthen, the Pleiades (Seven Sisters) becomes prominent in Taurus constellation. This young star cluster lies 440 light-years away. While named for seven stars, most people see six with naked eyes - more become visible through binoculars. Look east during autumn evenings to spot this celestial wonder. The Pleiades serves as autumn's first major astronomical event before meteor showers arrive.

2Orionid Meteor Shower Peaks October 21

Active through October into November, the Orionids peak around October 21. These meteors originate from Halley's comet debris entering Earth's atmosphere at high speed. Best viewed from dark locations after allowing eyes to adjust, they appear to radiate from Orion constellation. The shower occurs as Earth passes through comet dust trails twice yearly. Orionids create bright streaks when particles heat up during atmospheric entry.

3Four-Planet Morning Alignment November 14

Early risers can spot Mercury, Venus, Mars and Jupiter aligned before sunrise on November 14. Venus and Jupiter will be brightest and easiest to see, while Mars appears fainter. Mercury presents the biggest challenge, staying low near sunrise glare. This planetary parade offers a rare chance to see four worlds simultaneously. Optimal viewing requires clear eastern horizon and minimal light pollution.

4Fast Leonid Meteors Arrive November 17

The Leonid meteor shower peaks around November 17, with meteors traveling 70km/second - among fastest visible from Earth. Under ideal conditions, observers might see 10-15 meteors/hour. Visibility depends on weather, moonlight, and light pollution. Leonids appear to radiate from Leo constellation, best viewed after midnight when Leo rises higher. These swift meteors originate from comet Tempel-Tuttle debris.

5November Supermoon Brightens Night Skies

November's full Beaver Moon (named for beavers' winter preparations) becomes a supermoon on November 24. Supermoons occur when full moon is nearest Earth, appearing 14% larger and 30% brighter than average. This begins a series of four consecutive supermoons lasting through February 2027. The phenomenon makes lunar features more visible to naked eye observers without special equipment.

6Optimal Viewing Conditions and Tips

Successful stargazing requires dark locations away from artificial lights, allowing 20-30 minutes for eye adjustment. Check weather forecasts for clear skies using apps like BBC Weather. While telescopes enhance views, most events are visible naked-eye. Dress warmly for extended observation. Light pollution maps can help find nearby dark sites. Autumn's longer nights provide more viewing opportunities than summer.

7Celestial Event Calendar Overview

Autumn 2025's night sky highlights: Pleiades visible throughout October; Orionids peak October 21; planetary alignment November 14; Leonids peak November 17; Supermoon November 24. This sequence offers diverse astronomical phenomena - from stationary star clusters to dynamic meteors and planetary movements. Each event has specific optimal viewing times, from evening Pleiades to pre-dawn planets.

8Why Autumn Offers Prime Stargazing

Longer nights and typically clearer weather make autumn ideal for astronomy in Northern Hemisphere. These events provide accessible cosmic wonders requiring minimal equipment. Observing celestial phenomena connects us to astronomical cycles and our place in the universe. From ancient star clusters to comet debris, each event tells part of Earth's cosmic story. Such observations blend science, history and personal wonder under autumn skies.

Original article: BBC News — 5 Must-See Celestial Events This Autumn