In September 2018, skywatchers across the Northern Hemisphere had the chance to see the annual Epsilon Perseid meteor shower at a favorable moderate peak. With a waxing crescent Moon that set before midnight in many locations, conditions favored darker skies and clearer observation windows for patient viewers.
This guide outlines the timing, radiant point, and practical observing tips for the Epsilon Perseids during the 2018 season, focusing on how enthusiasts could best track and photograph this reliably active shower under September night conditions.
| Shower Name | Peak Date | Zenithal Hourly Rate (ZHR) | Best Viewing Hours (Local) | Moon Phase During Peak |
|---|---|---|---|---|
| Epsilon Perseids | 10 September 2018 | 5–10 | 22:00–05:00 | Waxing crescent, Moon set before midnight at mid-northern latitudes |
Identifying the Radiant and Constellation Context
Locating the Epsilon Perseids Radiant
The radiant of the Epsilon Perseids lies near the star Epsilon Persei in the constellation Perseus, positioned at a declination around +40 degrees. In September, Perseus climbs into the northeastern sky after dusk, offering an ascending radiant that favors observers at mid-northern latitudes.
Observing Conditions and Timing in September 2018
Night-to-Night Sky Clarity
During mid-latitude northern regions, September evenings brought long, dark intervals once evening astronomical twilight ended, with perseid-active radiant arcs stretching across the northern sky. Away from urban light pollution, viewers gained darker zenith backgrounds that enhanced meteor visibility despite a modest ZHR.
Photography Setup Considerations
Photographers using wide-angle lenses benefited from the early evening rise of Perseus, allowing compositions that included foreground landmarks under still-dark skies. With the Moon setting near or before midnight, the early morning hours offered the cleanest sensor time for longer exposures without lunar glow.
Meteor Science and Associated Debris Stream
Dust Trail History and Parent Body
The Epsilon Perseids originate from dust shed by periodic comet 17P/Holmes, with the stream encountering Earth around early to mid-September each year. Models of the debris trail suggest 2018 produced a modest surge in activity compared to recent years, yet visual rates remained within the typical ZHR range of 5–10.
Practical Tips and Takeaways
- Plan sessions from late evening through pre-dawn to capture the rising radiant.
- Prioritize locations with low light pollution and clear northern horizons.
- Use a red-filtered torch and dark-adapted eyes to preserve night vision.
- For photography, bracket exposures between 15 and 30 seconds to avoid star trailing at wide angles.
- Monitor local sky transparency and temperature to adjust focus and interval timing.
FAQ
Reader questions
When is the best time to watch the Epsilon Perseids in September 2018?
For most observers at mid-northern latitudes, the optimal window ran from late evening until early morning, with the highest rates appearing after the radiant climbed above the northeastern horizon past local midnight.
Does the Moon spoil the show during the 2018 peak?
The waxing crescent Moon set before midnight at many locations, leaving the post-midnight hours darker and more suitable for spotting fainter meteors without lunar interference.
Can I see fireballs from this shower in 2018?
While the Epsilon Perseids are not renowned for intense fireballs, the shower is capable of producing bright members; any such event depends on random entry angles and is not guaranteed during the 2018 peak.
What equipment do I need to photograph the September 2018 Epsilon Perseids?
Wide-angle lenses with fast apertures, a sturdy tripod, and basic interval shooting were sufficient for most enthusiasts, as the radiant’s elevation and modest Moon interference kept technical demands relatively low.