Meteor Trajectory: Can it Fall Straight Down?

In summary, a meteor can travel straight down or appear to fall at an angle depending on the distance and illumination of the object.
  • #1
Evo
Staff Emeritus
Science Advisor
24,017
3,337
I have always thought that a meteor enters the Earth's atmosphere and impacts the ground (if it doesn't disintegrate first) at an angle.

I saw something a few months ago which has bothered me ever since. I live in an area of farms, cow pastures and wilderness preserves. I was driving one night and noticed a very bright tiny red glowing object falling at a tremendous speed toward the earth, but "straight" down. It was moving so quickly that if I had blinked, I would have missed it. It appeared to have either disintegrated before hitting (as it vanished), or perhaps fell behind trees or a rise that I could not see because of the total darkness.

I estimate that the object, if it had impacted, would have been less than 1 mile from where I was.

There were no airplanes in the sky, because I was wondering if something had fallen from one.

My question - if you were to view a meteor falling from that short of a distance, would it be possible that it would appear to be falling straight down? Or would it still appear to strike at an angle?

I did a search on meteor trajectory, but all I could find was where high altitude trajectory was used to try to determine the possible impact site of a meteor, or seeing the meteor's trajectory from a significant distance, but nothing about seeing one fall very close.
 
Astronomy news on Phys.org
  • #2
Yes, Evo, a meteor certainly can travel straight down. Must've been an interesting sight, whatever it was!

- Warren
 
  • #3
Thanks chroot! I don't know what it was, but I've never seen anything like it, I was very startled, to say the least.
 
  • #4
In fact, it is not uncommon for objects to fall nearly strait down in the final part of decent. This may even be the reason why your search only showed studies of high altitude trajectory; because once an object has made impact with the upper atmosphere, it can be slowed down so much that it falls almost strait downafter the first few seconds.

But its also entirely possible for an object falling at an angle to look like it's falling strait, depending on where one is when observing. In fact, this may be the more likely explanation, since the object you saw was glowing as it fell, right? So, if it was glowing, it was probably in the early part of its decent.

As Warren already stated, a meteor can fall strait down, but I think that's a fairly rare event (just looking at the odds). Possibly someone else could give better data as to the probabilities involved.
 
  • #5
Originally posted by LURCH
But its also entirely possible for an object falling at an angle to look like it's falling strait, depending on where one is when observing. In fact, this may be the more likely explanation, since the object you saw was glowing as it fell, right? So, if it was glowing, it was probably in the early part of its decent.
Yes, it was quite bright. It's hard to describe as I remember it appeared to leave a trail, very short duration, so it appeared to be a red streak with the brighter point at the bottom, but not sure if that was just my eyes causing the trailing effect. I'm terrible at describing things.
 
  • #6
I have a new question on the same subject. I saw a meteor fall, coming at me maybe 8000 feet up or so, it exploded and continued to fall directly over my head at an angle. My question is, how do I estimate where to start looking? I know there is a way to do this with limited info(saw it on meteorite men)but not sure how. Thanks to anyone that can help!
 

1. How do meteor trajectories differ from other types of falling objects?

Meteor trajectories are unique in that they are affected by the Earth's atmosphere as they fall. Unlike objects that are dropped from a stationary position, meteors are traveling at high speeds and are subject to air resistance, which can alter their trajectory.

2. Can a meteor fall straight down?

While it is possible for a meteor to fall straight down, it is not very common. The Earth's atmosphere typically causes meteors to travel at an angle as they fall, resulting in a curved trajectory.

3. What factors influence the trajectory of a meteor?

The trajectory of a meteor can be influenced by a variety of factors, including its size, mass, and shape, as well as the speed at which it is traveling and the density of the Earth's atmosphere at the location where it enters.

4. Is it possible for a meteor to change its trajectory while falling?

Yes, it is possible for a meteor to change its trajectory while falling. This can happen due to factors such as wind currents, air pressure, and collisions with other particles in the atmosphere.

5. How do scientists track the trajectory of a falling meteor?

Scientists use a variety of methods to track the trajectory of a falling meteor, including radar systems, telescopes, and cameras. They also analyze data such as the meteor's speed, direction, and location to determine its trajectory and potential impact location.

Similar threads

  • Astronomy and Astrophysics
Replies
11
Views
5K
  • Astronomy and Astrophysics
Replies
12
Views
5K
  • Astronomy and Astrophysics
Replies
1
Views
2K
Replies
8
Views
1K
  • Astronomy and Astrophysics
Replies
10
Views
4K
  • Mechanics
Replies
6
Views
909
Replies
25
Views
3K
  • Astronomy and Astrophysics
Replies
7
Views
1K
  • Astronomy and Astrophysics
Replies
1
Views
2K
  • Astronomy and Astrophysics
Replies
4
Views
3K
Back
Top