|
Because they orbit between the Earth & Sun, these are known as the 2 "inferior" planets |
Mercury & Venus
|
$400 |
DJ |
ASTRONOMY |
2022-06-13 |
#8661 |
|
As seen from Earth, these 2 planets show lunar-type phases |
Mercury & Venus
DD
|
$1,000 |
J |
THE SOLAR SYSTEM |
2008-03-14 |
#5420 |
|
They are the 2 planets closest to our sun |
Mercury & Venus
|
$200 |
J |
THE PLANETS |
2000-04-04 |
#3597 |
|
The 2 planets that have no moons |
Mercury & Venus
|
|
FJ |
THE SOLAR SYSTEM |
1997-02-10 |
#2871 |
|
The 2 planets in our solar system with no moons |
Mercury & Venus
DD
|
$600 |
DJ |
ASTRONOMY |
1986-10-24 |
#490 |