Observation of the meteor shower in 1401 in the presence of the moonlight

Meteor shower on Saavashi or Abarmoon? This year, two spectacular astronomical phenomena are happening at the same time, but to see the meteors better, you should look towards the opposite side of the moon in the morning sky. until August 22) reaches its peak. But this year, the light of the full moon will interfere with the peak of this meteor shower.

BingMag.com Observation of the meteor shower in 1401 in the presence of the moonlight

Meteor shower on Saavashi or Abarmoon? This year, two spectacular astronomical phenomena are happening at the same time, but to see the meteors better, you should look towards the opposite side of the moon in the morning sky. until August 22) reaches its peak. But this year, the light of the full moon will interfere with the peak of this meteor shower.

The predicted peak time for this year's shower is August 13, 2022 at 03:00 AM UTC (August 22 at 07:30 AM). Is. In most years, it is recommended to watch the peak of the meteor shower in August 20, 21 and 22, but this year, unfortunately, the moon will be in the sky during the peak of the meteor shower all night.

So There won't be as many visible meteors as in previous years in a dark, moonless sky. However, if you decide to watch the rainy night sky, you should choose a place away from light pollution. With the arrival of the center of the shower and the descent of the moon, on the opposite side, you should gradually expect to observe more meteors. Therefore, during the peak of the meteor shower, there will be a bright moon in the sky, which is also a supermoon. This last supermoon of 2022 will occur precisely on Friday, August 12 (21 August) at 01:36 UTC (06:06 Friday morning Tehran time). It is a good opportunity to watch the supermoon and photograph it with terrestrial phenomena. The August full moon, which is also called the "Sturgeon Moon", occurs when the moon is at its closest point to the Earth, i.e. the perigee.

The supermoon phenomenon can be larger in the sky. and appear up to 16% brighter than a normal full moon. With the presence of this supermoon, the observational situation of the meteor shower will be different. Under ideal conditions in a dark, moonless sky, sky watchers often report 90 or more meteors per hour. This year, however, due to the omnipresence of the moon, it seems impossible to achieve such a number. However, there was a similar situation in 2014 and a small number of ZHR observers reported about 70.

In general, the meteor shower in Savooshi, which continues to some extent in the days before the peak and shortly after it, It is a rich and stable rainfall. Its meteors are colorful and often leave a permanent trail. All these factors make the Barsaushi meteor shower one of the most popular meteor showers in the Northern Hemisphere. It is called "109P/Swift-Tuttle". This comet orbits the sun approximately once every 133 years.

This celestial body was observed on July 16, 1862 (July 27, 1241) by Lewis Swift from Marathon, New York, using a 11 cm telescope was discovered. But he did not report it immediately because he thought he had seen Schmidt's comet, which had been found two weeks earlier.

Three days later, Horace Tuttle from The Harvard Observatory saw it, and then scientists calculated that the comet would return in 120 years, that is, in 1982.

But 1982 came and went, and the comet did not appear in the sky. This time, the appearance of a star observed in 1737 was considered as the possible initial appearance of Comet Swift-Tuttle. Now the orbital period is more than 130 years. "Brian Marsden" (Brian Marsden) published the new orbital elements and the assumptions for finding them in 1992.

In the 1980s, many comet hunters occasionally saw a part of the sky that was supposed to be They would check if the comet appeared. After that, a burst of Barsaushi meteors in 1991 indicated that the comet might be on its way back, and a resurgence of meteors in 1992 confirmed this.

The trajectory of Comet Swift-Tuttle and the Barsaushi shower at the intersection of its debris with Earth's orbit
Credit: Guy Ottewell

Finally, on September 26, 1992, amateur astronomer and comet hunter Tsuruhiko Kiuchi identified it in the evening sky just north of the bowl of the Ursa Major constellation.

Knowing where to look, he spotted the comet after 16 hours and estimated it to be five times brighter than originally reported. Then others confirmed this observation. Later, "Gary Kronk" suggested that the comets observed in 69 and 188 BC were apparently the same comet; A theory that was later confirmed. Now this comet is located 35 degrees south of the sun and 42 times farther from the sun, and thus it cannot be seen in any telescope. It is not observed, but in 2126 it will be observable in all telescopes, binoculars and even with the naked eye. trace back, they appear to come from the constellation Perseus near the famous Double Cluster. For this reason, this meteor shower is named Bersavoshi.

BingMag.com Observation of the meteor shower in 1401 in the presence of the moonlight

Focus of the Bursaush Meteor Shower
Credit: EarthSky

Of course, there is no real connection between the meteor shower and the constellation of Bursaush. The stars of Barsawashi are several light-years away, while these meteors burn about 100 km from the Earth's surface.

Finally, it should be emphasized that in the Barsawashi 1401 meteor shower, most meteors are likely to occur in the pre-dawn hours. We will witness from August 20 to 22, but many faint meteors will be hidden despite an almost full moon, which is also the last supermoon of 2022. : Lorenzo Di Cola/NurPhoto via Getty Images

Source: EarthSky

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