Comets and Meteor Streams
نویسندگان
چکیده
منابع مشابه
Meteor Streams and Parent Bodies
Problem of meteor orbit determination for a given parent body is discussed. Some of the published methods for obtaining meteoroid’s orbital elements at the moment of intersecting Earth’s orbit on the basis of geometrical variation of parent body’s orbital elements are discussed. The main result concerns the following two facts: i) in real situations physical quantities for the change of orbital...
متن کاملComets 14P/Wolf and D/1892 T1 as parent bodies of a common, α-Capricornids related, meteor stream
Studying the dynamics of meteor streams associated with comets 14P/Wolf (in the orbit known before a large disturbance by Jupiter in 1922) and D/1892 T1 on the basis of gravitational action exclusively, it is possible to demonstrate that the detectable part of the stream of 14P/Wolf has been split into two rather different strands by planetary disturbances. The first of these strands is overlap...
متن کاملRetinal meteor
We describe a case of a 65-year old man diagnosed with retinal vasoproliferative tumour secondary to posterior uveitis. The fluorescein angiography shows an interesting meteor-like leak emanating from the tumour and rising towards the superior retina in the later frames of the angiogram. Pictorially, we call it the "Retinal Meteor" and also describe the possible mechanism for this pattern of le...
متن کاملChemical Abundances of Rock-forming Elements of Cometary Streams Obtained from Meteor Spectroscopy
Introduction: Up to now, only cometary dust from comet 1P/Halley has been analyzed in situ by mass spectrometry techniques. In contrast, numerous studies have been performed in the laboratory over interplanetary dust particles (IDPs) thought to be related to comets. Another discipline that addresses the study of the chemical composition of small meteoroids is meteor spectroscopy, which focuses ...
متن کاملMeteor velocities
Introduction Conclusions References Tables Figures Back Close Abstract Introduction Conclusions References Tables Figures Back Close Abstract Determining the velocity of meteoroids as they enter the Earth's atmosphere is very important since the value is fundamental in calculating the orbit of the meteoroid and hence eventually its origin. We describe early attempts at this determination and hi...
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ژورنال
عنوان ژورنال: American Journal of Physics
سال: 1953
ISSN: 0002-9505,1943-2909
DOI: 10.1119/1.1933442