Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

Thanks for supporting LPF!

Avery's Instagram

This Is What a Laser From the Moon Looks Like (Photo)




Blord

New member
Joined
Dec 24, 2007
Messages
5,357
Points
0
Thanks for the information. I find the photo not very impressive. It is just a blob of light with no details.
Btw the laserlight travels 1.3sec from the moonorbiter to the camera.
 

Fritz The Cat

New member
Joined
Sep 29, 2013
Messages
27
Points
0
I wonder what wavelenght laser is being used. ? I've heard of mirrors left on the moon for lunar ranging measurements ,are these the mirrors?

Can an amatuer astronomer point a telescope and do experiments with these mirrors ?
 

MessiTom

New member
Joined
Jul 19, 2013
Messages
207
Points
0
You would need VERY sensitive equipment to detect the light bouncing back. ^
 

Blaster

New member
Joined
Jul 1, 2013
Messages
1,172
Points
0
During the Apollo lunar missions mirrors where left on the moon at the various landing sites to do just that .They are used to check the exact distance of the moon from the earth using the speed of light x the time ,that's just one of the things they are used for but the main one .









I wonder what wavelenght laser is being used. ? I've heard of mirrors left on the moon for lunar ranging measurements ,are these the mirrors?

Can an amatuer astronomer point a telescope and do experiments with these mirrors ?
 
Last edited:

Pi R Squared

New member
Joined
May 14, 2013
Messages
3,793
Points
0
I wonder what wavelenght laser is being used. ? I've heard of mirrors left on the moon for lunar ranging measurements ,are these the mirrors?

Can an amatuer astronomer point a telescope and do experiments with these mirrors ?

I would think you could. I remember watching an episode of The Big Bang Theory where they did it from the roof of the apartment building, someone brought this up in another thread not too long ago. I don't know what equipment you would need to detect the return signal though. I suspect you would need a powerful laser, the more powerful the better I would think.

That makes me wonder, how powerful would a laser have to be to be able to shine it at the moon and visibly see the dot from Earth. Probably impossible but a cool idea, if it is possible don't anyone do it! Everyone will get really freaked out by it.:crackup:
 

The Lightning Stalker

Well-known member
Joined
Aug 14, 2013
Messages
2,655
Points
63

steve001

Well-known member
Joined
Jun 3, 2007
Messages
2,531
Points
113
I wonder what wavelenght laser is being used. ? I've heard of mirrors left on the moon for lunar ranging measurements ,are these the mirrors?

Can an amatuer astronomer point a telescope and do experiments with these mirrors ?

You would need VERY sensitive equipment to detect the light bouncing back. ^

During the Apollo lunar missions mirrors where left on the moon at the various landing sites to do just that .They are used to check the exact distance of the moon from the earth using the speed of light x the time ,that's just one of the things they are used for but the main one .

https://directory.eoportal.org/web/eoportal/satellite-missions/l/ladee

Looks like it's in the 1550nm range

Here is more than you ever wanted to know about one of the moon laser ranging projects.

APOLLO

This image isn't of a laser bouncing off a mirror. This graphic explains it all.
nasa-lunar-laser-communications-demonstration-infographic.jpg
 
Last edited:

Phsycodelic

New member
Joined
Nov 3, 2012
Messages
35
Points
0
This is a somewhat old thread, but I noticed no one brought this up:
Laser Pointer to the moon
I thought it might interest you! :)

Cristian

That is very interesting. Imagine the entire atmosphere turning to plasma and killing everyone instantly.:cryyy: What interests me most is how useful lasers could be used for long journey space travel.
 

Hemlock_Mike

Well-known member
Joined
Jan 7, 2007
Messages
6,285
Points
83
I think I read long ago about an astronomer putting
a 1 W green on his telescope and seeing a reflection
from one of those mirrors. Under good conditions,
it might be possible.
HMike
 

Hemlock_Mike

Well-known member
Joined
Jan 7, 2007
Messages
6,285
Points
83
Phsyco -- Know where the mirrors are at.
The beam is wide there but the moon is still BIG.
HMike
 

Phsycodelic

New member
Joined
Nov 3, 2012
Messages
35
Points
0
Yeah I imagine it would take a bit of luck to be able to hit the mirrors, ill have to see if I can find some information of where the mirrors are located on the moon. That would be a awesome sight tho to see a blue reflection glaring back at me.
 

Hemlock_Mike

Well-known member
Joined
Jan 7, 2007
Messages
6,285
Points
83
It's public record where they landed and set the reflectors.
Still you have to go slowly!!
HMike
 




Top