Any horizontal streaks on sun are earth clouds. Other spots besides Venus are sunspots. Color is natural, darkening as sun sets. The blur right of the sun is a barn swallow.
Sony Alpha DSLR A-900
,Minolta 600mm APO HS with 1.4x APO teleconverter Filters: 4X neutral density filter, clouds, over 300 miles of atmosphere at sunset,using 15 miles as altitude of atmosphere edge. 1/500s f/8.0 at 840.0mm iso100