Questions tagged [meteor]
Questions on objects passing through the atmosphere which leave visible wakes of incandescent material.
8
questions with no upvoted or accepted answers
3
votes
0
answers
35
views
Can a meteor streak exhibit different colors denoting presence of more than1 element?
A meteoroid's elemental composition can be determined by the color it exhibits while burning in the earth's atmosphere which we also call a "meteor". However, is it possible that a meteor ...
2
votes
0
answers
53
views
Have any meteoroids been detected before they reached the Earth's atmosphere?
Once a meteoroid starts burning up in the atmosphere, it becomes a visible meteor. Have any meteoroids been detected before they started to burn in the atmosphere? If yes, what is the ballpark ...
2
votes
0
answers
61
views
Was NASA's 2007 attempt to see helions during a solar eclipse successful? What instruments were used?
This answer about Sun-grazing comets led me eventually to Wikipedia's Helion (meteoroid), which has a one-sentence long article:
A Helion meteoroid is a meteoroid that arrives from the approximate ...
2
votes
0
answers
141
views
What is the average Ni-Fe crystal length in iron meteorites?
Iron-core meteorites display an awesome criss-cross pattern known as the Widmanstätten pattern, shown below:
(photo by Dr. Patrick M. Len, taken from Wikipedia)
I TA for an intro-level astronomy/...
1
vote
0
answers
35
views
Meteor Triangulation
I´m looking for literature and examples on the subject of meteor triangulation. For example, graphical representation and calculation of a meteor orbit observed from two different geographical ...
1
vote
0
answers
40
views
What is a "rare earthgrazer" and why might I see one during the Perseids "earlier in the night" moving slow, across the horizon?
I clicked on a Yahoo News link How to watch the Perseids — the best meteor shower of the year and saw the following sentence:
The meteors are very fast and bright, regularly leaving long tails of ...
1
vote
0
answers
58
views
Observed meteors on Venus?
In an article on Venus by JPL from 1996 I read
Due to the dense Venusian atmosphere, primary impact craters of less than a 3 kilometer (2 mile) diameter are nonexistent.
I am now wondering whether ...
1
vote
0
answers
129
views
Meteor size and frequency distribution for Earth vs. moon or other planets?
I struggle to find an answer to the at-first-sight simple question if or how the size distribution and frequency distribution of incoming rocks hitting the ground or the atmosphere vary from Earth, to ...