The correct answer is A

The correct answer is A.  The moon is full when it is opposite the earth from the sun.  The full moon rises just after sunset.  On rare occasions, the moon enters the earth's shadow and is eclipsed by the earth's shadow.  However, the moon's orbit is inclined to the earth's orbit by about 5 degrees, that the moon usually misses the earth's shadow.  For the last successful photo from WWC of an eclipsed moon, please see the Phys Photo of the Week for Oct. 29, 2004.

Animated time-lapse of the anti-sunset

Loading a 280 kb animated photo.

In the animated sequence you can see the shadow creeping up from the lowe elevations off into the sky and eventually the rising moon.  The last frame of the sequence is a little brighter merely from re-setting the exposure settings on the camera.  The sequence consists of a new image approximately every 30 seconds, but played back at one image every half second to produce a playback 60 times real time.  Donald F. Collins

Physics Photo of the Week is published weekly during the academic year on Fridays by the Warren Wilson College Physics Department.  These photos feature an interesting phenomena in the world around us.  Students, faculty, and others are invited to submit digital (or film) photographs for publication and explanation.  Atmospheric phenomena are especially welcome.  Please send any photos to

Click here to see all Physics Photo of the Week for 2005

Click here to see all Physics Photo of the Week for 2004.