Search results

1

Fireball on the 08th of January 2024 and meteorite fall near Rovanichi, Belarus

100%

Harachka Y., Mikulich A., Morozov K.

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vol. 15

47-55

EN

Three cameras of the Belarusian Meteor Network (BMN) in Minsk and Gayany recorded a bright fireball on 8th January 2024 at 01:30:24 UTC. Calculations using UFOOrbit showed that the meteoroid belonged to the Atens group of near-Earth asteroids, whose orbits cross the Earth’s orbit from the inner side (objects-like the asteroid Apophis). Camera in Gayany captured the 1st and 2nd order spectra which showed a typical picture for a meteoroid of chondritic composition. The event was also analysed in terms of meteorite fall, resulting in the calculated strewn field near Rovanichi, Minsk Oblast, Belarus.

2

Nowy chondryt z Libii

100%

Abu Anbar M., Kryza R., Przylibski T. A., El Bahariya G.

Acta Societatis Metheoriticae Polonorum

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2009

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vol. 1

9-12

EN

On Saturday, 21 of May, 2006, a fall was observed and the stony meteorite was found in a small crater on an apple farm at Werdama village, near Al Beda town in Libya. Based on preliminary examinations, the authors described the meteorite as an ordinary chondrite. Further research aiming at full characteristics, classification and registration of the meteorite is in progress.

3

Spadki meteorytów w 2022 roku. Okoliczności i obserwacje

75%

Morys J., Żmija M.

Acta Societatis Metheoriticae Polonorum

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2023

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vol. 14

141-156

EN

In 2022, there were ten meteorites found worldwide after fresh falls. These are primarily ordinary chondrites, but one achondrite fall was also recorded. Meteorite falls occurred in the United States (3) and China (2) but also in Algeria, Brazil, Slovakia, India, and the Philippines. This paper shows how these meteorites were found and provides conclusions before future searches.

4

Spadki meteorytów w 2023 roku. Okoliczności i obserwacje

75%

Żmija M.

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EN

In 2023, there were 12 meteorite falls around the world. Among them, the Saint-Pierre-le-Viger meteorite stands out, because the fall was preceded by the observation of an asteroid approaching the Earth. The article also drew attention to the presence of meteorites causing material damage and to the finds made by Polish searchers.

5

Spadki meteorytów w latach 2020–2021. Okoliczności i obserwacje

75%

Morys J., Żmija M.

Acta Societatis Metheoriticae Polonorum

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2022

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vol. 13

67-106

EN

The paper presents the circumstances and data accompanying meteorite falls in recent years. The study contains descriptions of 21 falls observed in 2020 and 15 falls in 2021. These phenomena took place on all continents, except the polar regions. In conclusion, this work is a collection of several dozen stories about freshly fallen meteorites. They show many aspects connected with the observations and the hunting for new specimens.

6

Sprawozdanie z poszukiwań meteorytów w Oslo

75%

Tymiński Z., Stolarz M., Kubalczak T., Burski M., Zaręba P., Holst M., Bilet M.

Acta Societatis Metheoriticae Polonorum

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2013

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vol. 4

108-114

EN

A piece of a meteorite that had crashed through the roof of a cottage house was find in the central Oslo quarter Rodelřkka at the beginning of March 2012. Some days later the second discovery in the melting snow of Ekebergsletta hilltop plateau triggered the hunting for meteorites in almost all sides of Oslo. The pieces of third meteorite broken by cars and spread out by snowplow was discovered on the asphalt road side by Maciek Burski, the member of Polish Meteoritical Society. Later on the missing fragments of the Maciek’s most east find was collected by Meteoritical Section members of Comet and Meteor Workshop (PKiM) with the help of local meteoritical authorities. The total mass of this unobserved fall is 6.22 kg in five pieces spread out in the eight km-long strewnfield with 200 g and 4.65 kg meteorites on the opposite ends. The Meteorite is not classified yet but unofficial information is “breccia H3-4”.

7

Kamień, który zniszczył wieżę więzienną

63%

Woźniak B., Woźniak M.

Acta Societatis Metheoriticae Polonorum

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2013

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vol. 4

120-128

EN

In his catalogue (Klein 1904) Klein described many events concerning meteorites, for example information about a fallen meteorite which destroyed a prison tower in Warsaw in 1600. He managed to find an original source of the information, specify the date and determine which tower had been hit by falling meteorite. The report of that event could be found in one source only and was copied by many searchers. The issue thus remains open whether we deal with a real description of the event.

8

Skytinel – prototyp nowej kamery bolidowej all-sky

63%

Żmija M.

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vol. 15

195-201

EN

The paper describes the successes of Polish meteorite searchers following the fall of asteroid 2024 BX1 near Ribbeck, Germany. They found a first specimen weighing 171 grams, a main mass of 225 grams and more than 30 smaller fragments with masses in the range of 1–60 grams. The summary is supplemented by personal observations and reports of finders.

9

Meteoryt Ribbeck – relacje polskich poszukiwaczy

63%

Żmija M.

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EN

The paper describes the successes of Polish meteorite searchers following the fall of asteroid 2024 BX1 near Ribbeck, Germany. They found a first specimen weighing 171 grams, a main mass of 225 grams and more than 30 smaller fragments with masses in the range of 1–60 grams. The summary is supplemented by personal observations and reports of finders.

10

Spadki meteorytów w 2017 roku. Okoliczności i obserwacje

63%

Żmija M.

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vol. 9

187-205

EN

This scientific paper is a summary of the meteorite falls in 2017: Broek in Waterland (Holland), Tres Irmaos (Brazil), Serra Pelada (Brazil) and Kheneg Ljouâd (Morocco). The study also includes a section about unconfirmed falls, such as Puya Medio (Colombia), Mukundpura (India), Crawford Bay (Canada) and Sadiya (India). The vast majority of these specimens is ordinary chondrites of the L and LL groups. Only Serra Pelada meteorite turned out to be eucrite and Mukundpura is suspected to be carbonaceous chondrite. The author collects and organizes basic information about these findings and compares the latest data with statistics from previous years. The description of the circumstances of finding meteorites are brief and maintained in the popular-scientific tone. The text also includes a set of fireballs and bolides that could end with a meteorite fall. Among them is also a bolide that was visible from Poland. The thesis resembles the criteria for dividing meteors and notes the differences in their naming. It is extended by analogies and comparisons that make possible to look at the issues from different perspectives: from the statistical, through the media, to the historical one.

11

Spadki meteorytów w 2019 roku. Okoliczności i obserwacje

63%

Żmija M.

Acta Societatis Metheoriticae Polonorum

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2020

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vol. 11

141-157

EN

In 2019 two meteorite showers occurred on Earth, which ended with the fall of hundreds of fragments in Cuba and Costa Rica. Apart from them, meteorites with a total weight of probably less than 10 kg landed in Algeria, Morocco, Iran, India, and Germany. This work is another summary of the year in terms of meteorite falls. It includes information on the circumstances of these phenomena and their scientific consequences. The author collected information from many sources, especially the media and meteorite hunters, to describe in a brief form how the meteorites fell last year. The purpose of his work is to gather basic and proven knowledge, which can serve as an inspiration to further explore the history of meteorites, own meteorite hunting, and draw the attention of researchers to interesting falls in distant regions of the world.

12

Spadki meteorytów w 2018 roku. Okoliczności i obserwacje

63%

Żmija M.

Acta Societatis Metheoriticae Polonorum

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2019

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vol. 10

199-221

EN

This scientific paper aims to systematize knowledge about the circumstances of meteorite falls in 2018. Eight of them were officially confirmed by The Meteoritical Society: Hamburg (USA), Ablaketka (Kazakhstan), Aba Pan (Nigeria), Mangui (China), Ozerki (Russia), Renchen (Germany), Gueltat Zemmour (Morocco), Komaki (Japan). Seven more have not yet been classified: Central Kalahari (Botswana), Glendale (USA), Benenitra (Madagascar), Bhakkar (Pakistan), Ghadamis (Libya), Elkouran (Morocco) and meteorite fall from the Sahara Desert. It turns out that the most numerous group of meteorite falls in 2018 were L6 chondrites. There were no iron or stony-iron falls. The author collected information from many different sources. He analyzed entries in the MetBull catalog, publications in social media and press reports in order to compare them with official data from previous years. In this way, he tries to prove that although the circumstances of each meteorite fall are different, coherent conclusions can be drawn from them, and these can help meteorite researchers, for example, in verifying eyewitness accounts.

13

Chondryt Sołtmany

39%

Przylibski T. A.

Acta Societatis Metheoriticae Polonorum

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2016

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vol. 7

93-122

EN

The Sołtmany hammer meteorite is classified as an ordinary chondrite type L6, W0, S2. At present it is the most thoroughly and comprehensively examined Polish meteorite. A comprehensive petrological, mineralogical and geochemical analysis alongside the investigation of its physical and particularly thermophysical properties, and, most of all, analyses of cosmogenic radionuclides and noble gases isotopes content, as well as the use of a troilite thermometer has made it possible to draw interesting conclusions concerning the genesis and evolution of the parent body and the history of the parent meteoroid and, finally, the Sołtmany meteorite. The present report attempts at summing up the results of studies conducted at several European research centres in the last four years. The age of the the Sołtmany chondrite parent rock has been defined at 4.137 billion years. It was formed at a temperature of up to 440–450 K (about 170°C), probably at a depth of up to 3 to 7 km under the surface of the parent body, i.e. at a pressure of the order of 1–2.4 kbar. Such a low temperature during the accretion, diagenesis and metamorphism of the parent body may point to its complicated development, which may be in part due to collisions of partially melted planetesimals. Like with other type L ordinary chondrites, one can infer that the parent body could have been destroyed about 467 million years ago, at the time of a catastrophic collision which led to the formation of Gefion family of planetoids. Perhaps one of the bodies in this family was involved in another collision about 29.2 million years ago, which resulted in ejecting the parent meteoroid of the Sołtmany chondrite onto the Earth collision trajectory. Before entering the Earth’s atmosphere, this meteoroid had the mass of about 36 kg and the diameter of ca 13.5 cm. During its flight through the atmosphere, it rotated and somersaulted, which resulted in the formation of an uniform thin (0.5–0.7 mm) fusion crust, whose temperature reached 1000°C. In the last phase, the Sołtmany meteorite fell almost vertically and its mass was a mere 3% of the mass of the parent meteoroid – 1.066 kg. It hit the roof and then the concrete stairs of a farm building, which caused it to break into two bigger and many small pieces. It was found a few minutes after the fall, which occurred at 6:03 a.m. (CEST, UTC+2:00) on 30 April 2011, by Wydmińskie Lake in northern Poland (54°00,53’N, 22°00,30’E). The Sołtmany chondrite is one of just 14 meteorites in which the activity concentration of the cosmogenic 52Mn has been determined, and one of the few ordinary chondrites where the concentration of organic matter has been defined. As a result, it was found out that unlike in carbonaceous CI chondrites, the composition of organic particles is dominated by less complex compounds (CHO and CHOS) than CHNO and CHNOS compounds. This may indicate the decomposition of more complex organic compounds into particles with simple structures during magmatic and metamorphic processes related to formation of type L ordinary chondrites.

Refine search results

Fireball on the 08th of January 2024 and meteorite fall near Rovanichi, Belarus

Nowy chondryt z Libii

Spadki meteorytów w 2022 roku. Okoliczności i obserwacje

Spadki meteorytów w 2023 roku. Okoliczności i obserwacje

Spadki meteorytów w latach 2020–2021. Okoliczności i obserwacje

Sprawozdanie z poszukiwań meteorytów w Oslo

Kamień, który zniszczył wieżę więzienną

Skytinel – prototyp nowej kamery bolidowej all-sky

Meteoryt Ribbeck – relacje polskich poszukiwaczy

Spadki meteorytów w 2017 roku. Okoliczności i obserwacje

Spadki meteorytów w 2019 roku. Okoliczności i obserwacje

Spadki meteorytów w 2018 roku. Okoliczności i obserwacje

Chondryt Sołtmany