I do not think so.
Opacity is the transparency of the atmosphere. The lower the value the more transparent is the atmosphere.
Read the manual. Making addons.
Screenshot (138) by osukent302, on Flickr[/img]
Screenshot (138) by osukent302, on FlickrFor a counter-earth, or the L4 and L5 points you can take these orbital data. As you can see, they differ only in the 'MeanLongitude'.
// Counter-Earth
Orbit
{
Epoch 2451545
Period 1.0
SemiMajorAxis 1.0000010178
Eccentricity 0.0167086342
Inclination 0.0
AscendingNode 348.739
LongOfPericen 102.93734808
MeanLongitude 280.46645683 // Earth-Moon + 180°
RefPlane "Ecliptic"
}// L4 point
Orbit
{
Epoch 2451545
Period 1.0
SemiMajorAxis 1.0000010178
Eccentricity 0.0167086342
Inclination 0.0
AscendingNode 348.739
LongOfPericen 102.93734808
MeanLongitude 160.46645683 // Earth-Moon + 60°
RefPlane "Ecliptic"
}// L5 point
Orbit
{
Epoch 2451545
Period 1.0
SemiMajorAxis 1.0000010178
Eccentricity 0.0167086342
Inclination 0.0
AscendingNode 348.739
LongOfPericen 102.93734808
MeanLongitude 40.46645683 // Earth-Moon - 60°
RefPlane "Ecliptic"
}AlbedoGeom seems to do the trick....but there is an abrupt transition once you get to a certain distance.AlbedoBond, AlbedoGeom and Brightness may affect the apparent magnitude of the moon.

The only method I can think of is:
