Month: November 2017

Bright Leonid Fireball over Spain

The Leonids produced a brilliant fireball in the early morning of November 17. At 6:11 local time (5:11 universal time) on 17 November, a brilliant fireball flew over the centre of Spain. According to the preliminary analysis carried out by Professor José María Madiedo (University of huelva), principal researcher of the smart project, the event is a leonid that occurred as a result of the entry into the Earth’s atmosphere of a fragment of comet Tempel-Tuttle At a speed of about 260.000 miles per hour. The luminous phenomenon began at an altitude of about 139 km over the south...

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Fireball seen at Murmansk and Northern Finland

Fireball 2017 November 16 at 19h40m local time A bright fireball appeared and got registered by some dashboard cameras. Residents of the Murmansk region and Finland watched the flight of a fireball in the night of November 16-17. The video recordings show a bright colored bolide. This phenomenon was observed in Murmansk, Olenegorsk, Nikel, Zapolyarny and Loparsky. The bolide also flew over northern Finland and Norway. The flash was recorded on a video camera in Lapland. https://www.youtube.com/watch?v=-igmFwUEwVQ https://www.youtube.com/watch?v=9THzuOyRUqQ https://www.youtube.com/watch?v=3N47VB8MrzU With thanks to Galina Ryabova for reporting this...

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November issue of eMeteorNews online

The online content of July – October 2017 has been edited and archived in eMeteorNews (eMN_2017_4, November issue). Feel free to share this information on Facebook or Twitter with your group, network or society. The motto of MeteorNews is to keep it simple and easy. The website exchanges instant results, news and experience among active meteor observers accross the world. The eZine eMN serves as archive to preserve the interesting information. One advantage of online publications is that corrections can be made all the time. In case you spot some mistake, let us know and we can still correct...

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Meteor Activity Outlook for 11-17 November 2017

During this period the moon will reach its last quarter phase on Saturday November 11th. At this time the half-illuminated moon will rise near midnight local standard time (LST) and will remain above the horizon the remainder of the night. The moon will be bright but successful meteor watches can be conducted if you face away from the lunar glare. Viewing circumstances improve with each passing night as the moon’s phase wanes and it rises later in the morning. The estimated total hourly meteor rates for evening observers this week is near 4 as seen from mid-northern latitudes (45N) and 3 as seen from tropical southern locations (25S). For morning observers the estimated total hourly rates should be near 18 as seen from mid-northern latitudes and 10 from the southern tropics. The actual rates will also depend on factors such as personal light and motion perception, local weather conditions, alertness and experience in watching meteor activity. Morning rates are reduced during this period due to interfering moonlight. Note that the hourly rates listed below are estimates as viewed from dark sky sites away from urban light sources. Observers viewing from urban areas will see less activity as only the brighter meteors will be visible from such locations. The radiant (the area of the sky where meteors appear to shoot from) positions and rates listed below are exact for Saturday...

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New meteor showers – yes or not?

Jakub Koukal¹ ¹ Valašské Meziříčí Observatory, Vsetínská 78, 75701 Valašské Meziříčí, Czech Republic j.koukal@post.cz Meteor astronomy is a very young branch of astronomy, its development began only 200 years ago. Even in the 18th century, there was a presumption that the meteors are present in the Earth’s atmosphere, that their origin is not extraterrestrial. There are more than 2500 years old observations of meteor showers (Lyrids meteor shower in 687 BC or Perseids in 36 AD), but science has not been interesting until the end of the 18th century. The great boom of meteoric astronomy occurred in the mid-20th...

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