The Northern Hemisphere is currently in the midst of the Ursid meteor shower, which has a relatively short active period of just over a week. Last night’s winter solstice marks the peak of the Ursa Minor meteor shower, which is expected to produce approximately 5 to 10 meteors per hour. However, visibility may be affected by the almost full moon.
If you’re interested in exploring other celestial sights while waiting for the Ursid, consider checking out our beginner’s guide to astronomy for easy constellations to start with.
When will the Uruid meteor shower occur in 2023?
This year, the Uruid meteor shower will peak in the early hours of tonight, December 22-23, 2023, and will be active from December 17 to 26. The meteor shower may be less visible outside of the peak dates, and it’s expected to produce up to 10 meteors per hour, partly due to the influence of the almost full moon. This is in contrast to the Geminid meteor shower at the beginning of the month, which saw up to 150 meteors per hour.
According to astrophysicist Dr. Darren Baskill from the University of Sussex, “Just as the Geminid meteor shower, the best shooting star shower of the year, fades away on December 17th, the Ursa Minorids will take over. The crisp, cool nights this time of year are perfect for observing the night sky, as long as you stay warm.”
When is the best time to observe the constellation Urus?
The prime time to see shooting stars in the Ursid meteor shower is from midnight to 5 a.m. on December 23, 2023. This is when the radiant point is positioned highest in the sky, resulting in longer and more visible meteor trajectories.
At this time of year, the sky gets darker, and the moon sets as it nears 5am, increasing the chances of seeing meteors. Additionally, the Earth’s rotation shifts us in the direction of Earth’s orbital motion, facilitating the entry of meteors into the atmosphere and improving visibility.
Where should you look to see the Urshids?
The constellation Ursa Minor appears to radiate from a single point directly overhead, known as the “radiant,” located in the Ursa Minor constellation. Ursa Minor, also known as the Little Dipper, is a fixed feature of the northern sky and revolves around its poles once every 24 hours.
To locate the radiant of the Ursa Minorids meteor shower, follow these 5 steps:
- Find the Big Dipper and Ursa Major. Look for the prominent star map of the Big Dipper, also known as the Plow, part of the Ursa Major constellation. Note the distinctive shape of the ladle or pot.
- Identify the pointer star. Locate the two stars at the outer edge of the dipper’s bowl, known as the pointer stars, named Dube and Melek.
- Extend a line from the pointer star. Imagine a line extending from the two pointer stars away from the ladle.
- Find Polaris (North Star): Follow the imaginary line to reach the North Star, the North Star. It is located in the Ursa Minor constellation and is near the celestial north pole.
- Follow the handles: From the North Star, follow the handle of the Big Dipper to arrive at another ladle resembling the Big Dipper, just above which the radiant point is located.
Knowing the radiant’s location can help differentiate between the Ursids and Geminids, although Ursids are visible across the sky. If possible, aim to observe from a location that provides a broad view of the night sky.
How to maximize your chances of finding Ursids
You don’t need special or expensive equipment to observe meteor showers; your eyes are your best tools. Here are some tips for maximizing your chances of spotting the elusive Ursids:
- Maximize darkness: Choose a location away from light pollution for the best visibility.
- Adjust your eyes. Allow your eyes to adapt to the dark for 10 to 20 minutes to improve night vision.
- Protect from the elements: Prepare for low temperatures with blankets and warm drinks.
- Stay comfortable: Find an unobstructed view of the sky using a recliner or hammock.
- Use a red light. If necessary, use a red filter for your phone or a red flashlight to avoid disrupting your night vision. The red part of the light spectrum does not interfere with night vision.
Where do Urid meteors come from?
The Ursid meteor shower is associated with Comet 8P/Tuttle, a contact binary comet consisting of two separate objects that are in physical contact with each other. This comet leaves behind debris that intersects Earth’s orbit to produce the meteor shower.
Comet 8P/Tuttle has a 13.6-year orbital period and follows a predictable orbit around the Sun. It is influenced by Jupiter’s gravitational pull similar to the comet 46P/Wiltanen.
How many Urid meteors can we see?
Under ideal conditions, expect to see 5 to 10 meteors per hour. However, the nearly full moon may limit visibility at the end of 2023.
How can you tell the difference between Ursa Minor and Geminid meteors?
The Ursa Minor and Geminid meteor showers originate from different parts of the sky, with Ursids appearing overhead and Geminids appearing in the constellation Gemini. Additionally, they move at different speeds, with the Ursa Minor meteor shower producing slow-moving meteors with short tails.
About our expert Dr. Darren Baskill:
Dr. Darren Baskill is an outreach officer and lecturer at the University of Sussex, with a background in Physics and Astronomy. He previously lectured at the Royal Observatory Greenwich and organized the Astronomical Photographer of the Year competition.
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Source: www.sciencefocus.com
