circumzenithal arc belt of Venus solar eclipse Alpenglow Anticrepuscular ray Anthelion Auroral light brocken Spectre Circumhorizontal arc Circumzenithal arc Cloud iridescence Crepuscular rays Earth's shadow Glories Green flash Halos  sun dogs Heilig enschein or halo effect, partly caused by the opposition effect Light pillar mirages Fata Morgana Rainbows Subsun Tyndall effect Gegenschein Zodiacal light --ar 9:20