Author/Authors :
Roe، نويسنده , , Henry G. and de Pater، نويسنده , , Imke and Macintosh، نويسنده , , Bruce A. and Gibbard، نويسنده , , Seran G. and Max، نويسنده , , Claire E. and McKay، نويسنده , , Chris P.، نويسنده ,
Abstract :
Using adaptive optics on the W. M. Keck II telescope, we imaged Titan several times during 1999 to 2001 in narrowband near-infrared filters selected to probe Titanʹs stratosphere and upper troposphere. We observed a bright feature around the south pole, possibly a collar of haze or clouds. Further, we find that solar phase angle explains most of the observed east–west brightness asymmetry of Titanʹs atmosphere, although the data do not preclude the presence of a “morning fog” effect at small solar phase angle.