Free Republic
Browse · Search
General/Chat
Topics · Post Article

Astronomy Fun Fact:

The moon may look bright in the night sky, but it actually has a low albedo (reflectivity).
Note that the surface material ("regolith") is the color of half-used charcoal briquets.
The moon's albedo is around .08, which means it reflects only 8% of the light that hits it.

Get on the APOD PING list!

1 posted on 07/27/2002 5:33:14 PM PDT by petuniasevan
[ Post Reply | Private Reply | View Replies ]


To: MozartLover; Joan912; NovemberCharlie; snowfox; Dawgsquat; viligantcitizen; theDentist; grlfrnd; ...
APOD PING!
2 posted on 07/27/2002 5:34:01 PM PDT by petuniasevan
[ Post Reply | Private Reply | To 1 | View Replies ]

To: petuniasevan
Thank You and Thanks to YaHoo Reference

Albedo - Fraction of light reflected by a body or surface, commonly used in astronomy to describe the reflective properties of planets,
natural satellites, and asteroids. "Normal" albedo (the relative
brightness of a surface when illuminated and observed from
directly above) is often used to determine the surface
compositions of satellites and asteroids. The albedo, diameter,
and distance of such objects together determine their brightness.
3 posted on 07/27/2002 5:42:27 PM PDT by NormsRevenge
[ Post Reply | Private Reply | To 1 | View Replies ]

To: petuniasevan
"...Albedo: .039 ... Albedo: .039 ... Albedo: .039...."
5 posted on 07/27/2002 6:53:19 PM PDT by BradyLS
[ Post Reply | Private Reply | To 1 | View Replies ]

To: petuniasevan
One small step for man......
one giant leap for mankind!

American Translation:

TouchDown!

6 posted on 07/27/2002 7:12:20 PM PDT by MeekOneGOP
[ Post Reply | Private Reply | To 1 | View Replies ]

To: petuniasevan
This is such an amazing picture. Thanks!
8 posted on 07/27/2002 7:21:01 PM PDT by MeekOneGOP
[ Post Reply | Private Reply | To 1 | View Replies ]

To: petuniasevan
What we need to do, mainly to get some cash-flow but also to convince those who claim to disbelieve we landed on the moon at all, is to draw a large, bright, colorful Pepsi logo across the entire visible surface. Those who think the moon is reflective and bright have seen nothing yet! It will also be the only celestial object visible to the youngsters in their light-polluted cities.
10 posted on 07/27/2002 7:51:10 PM PDT by RightWhale
[ Post Reply | Private Reply | To 1 | View Replies ]

Free Republic
Browse · Search
General/Chat
Topics · Post Article


FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson