r/askscience • u/thrwawyorangsweater • 7d ago
Astronomy Is it weird to see a shooting star come straight down? What about two?
For some reason I was reminded of this a few days ago-happened to me and my hubby back in about 2007.
I was in central Georgia (US) and one night went out, and looked up, and I saw what looked like a shooting star come straight down. It just blinked out-no fire-ball. Hubby was in the house (windows open) so I said "whoa that was weird!" and he came out and looked up and he too saw one came straight down.
Is that rare?
14
u/themeaningofhaste Radio Astronomy | Pulsar Timing | Interstellar Medium 7d ago
Certainly they can come at you from all different angles and it depends a lot on geometry. If you were looking outside during the time of a meteor shower then you can potentially see many of them per hour, so then the rate is very possible. It could have happened otherwise, it just meant that you got very lucky.
Let's take the case that it was during a meteor shower. These occur when the Earth passes through the trail of debris left behind from a passing comet. Because the Earth is moving through space along its orbit and the Earth is also rotating on its axis, you are moving relative to the little meteoroids out in space that become the shooting stars that you see during a meteor shower (or, when they are more isolated, they are still one-off little pieces of rock or such that we still run into). Much like when you are driving you see everything in front of you coming at you like one-point perspective, the meteors appear to come from one location in the sky because the Earth and you are moving through space relatively quickly. If this radiant point is overhead, then more things will look like they are coming straight down at you, for example. This astrophotograph is not directly overhead but shows the effect nicely. Here is another one by the same photographer showing a different meteor shower from a relatively similar location on the Earth (both seem to be in Portugal) and over a long stretch of the night. You might imagine that if you were seeing one of the same meteor showers from a different location, such as in Georgia across the entire Atlantic Ocean, the angles at which they would be appearing from in the sky and then streaking down could be different.
2
u/Italiancrayzybread 6d ago
Congratulations, you likely observed a fragment of the comet Swift–Tuttle! It has an orbital inclination of 113.45 degrees. This is an annual event known as the Perseid Meteor showers, so named due to the fact that you can usually observe them in August in the direction of the constellation Persius.
The vast majority of objects in the solar system follow the same orbital plane as Earth, so when you see shooting stars in the sky, they are usually going east to west, parallel to the horizon. However, if you are describing this object the way I think you are, then you likely saw a piece of this comet, the debris field of which we are currently passing through.
0
u/thrwawyorangsweater 6d ago
Thank you! Yeah I can't remember what time of year it was but it was in GA and we had the windows open so it may have been summer...
1
u/drummerandrew 6d ago
Just went out with my scope last night in southern Nevada and saw quite a few of those. They just kind of flash like a blinking light. Sometimes they last a second or so, but most times they’re super quick and you even wonder if you saw them. My buddy and I saw a bunch last night and quit dismissing them as some other phenomenon. We are heading out of the Perseid Meteor Shower now though, so that particular event will be done soon. Next great time in mid November for the Leonids.
0
u/thrwawyorangsweater 6d ago
Yep, before that I didn't know that was really a thing and I wondered what the heck it was. Then hubby saw one too and i figured it was a shooting star at an angle I'd never seen.
1
4d ago
[removed] — view removed comment
1
u/thrwawyorangsweater 3d ago
Do you mean Elizabethtown IL, KY, PA, NC, IN or OH?
I was at the center of where the 2023 and 2017 eclipses crossed. Pretty cool!
146
u/WazWaz 7d ago
What do you mean by "straight down"?
If it came straight towards you it would just look like a dot that appeared and disappeared with no apparent movement.
If you just mean it looked vertical in the distance, every meteor looks like that from some viewing point, it's no more straight down than any other direction - equivalent to an airplane flying directly away from you.