03/01/2023 06:08 Weather news
The number of meteor showers will be maximum at dawn on the 4th (Wednesday).
What is the weather like at dawn from tonight to 4 (Wednesday)?
It is a possibility to expect clear night skies in the area on the Pacific side. Kanto and Kansai are also likely to be able to observe meteors. Around Nagoya, clouds may flow from the Sea of Japan side.
If you are stationary outdoors, your body will cool down more quickly than you might imagine, so please wear as much cold protection as possible during your observations.
How many meteors can we expect?
of the Quadrantid meteor shower begins to rise in the sky after 10 p.m. and meteors begin to flow after the date change. After that, as the radiant point rises higher, it becomes easier for the meteors to flow.
The moon sets around 4 a.m. (in the case of Tokyo) and the radiant point rises around dawn, which is the best time to see the most meteor showers.
According to the National Astronomical Observatory of Japan, about 25 meteors can be seen in the dark sky per hour during this period.
Meteors flow from the direction of the radiant point, but appear everywhere in the sky, not just near the radiant point. It is recommended to observe as wide a view of the sky as possible.
*Radiant Point: A point on the celestial sphere from which a shooting star (meteor shower) appears to issue.
Some of you may not be familiar with the “Quarantine” constellation. Actually, this comes from a constellation called “Hekimenshibungi”, which does not exist now.
In terms of actual constellations, it was on the border between the constellations of Bootes and Draco. The meteor shower appears to have flown from the direction of the former Hekimensipangi, hence the name “Sepianid Meteor Shower”.
The dust belt that forms the origin of the Quadrantids meteor shower crosses the Earth’s orbital plane at nearly right angles, so the Earth passes through the dust belt in a short period of time.
For this reason, the Quadrantids meteor shower is characterized by a shorter active period (during which many shooting stars can be observed) than other meteor showers such as the Geminids meteor shower and the Perseid meteor shower.
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Reference materials, etc.
National Astronomical Observatory of Japan “Hoshizora Information” https://www.nao.ac.jp/astro/sky/
Astroarts “Guide to the starry sky” https://www.astroarts.co.jp/
