Visar inlägg med etikett castor. Visa alla inlägg
Visar inlägg med etikett castor. Visa alla inlägg

måndag 6 april 2026

Moon and Jupiter


A clear night in the Swedish mountains where the starry sky is free from light pollution. The bright planet Jupiter lies to the left of the moon this evening with the stars Castor and Pollux obliquely up to the left of Jupiter. Obliquely up to the right of the moon is the star Capella in the constellation Auriga. Below the moon and Jupiter is the constellation Orion with the bright star Sirius far down to the left. Around the moon are thin clouds that almost create a complete halo.

måndag 5 januari 2026

Moonlit snow crystals


97% moon and the bright planet Jupiter next to it. In the cold snowy landscape, small crystals of different colors are seen in the snow taken with a macro lens. Even the two-bright stars Castor and Pollux are seen above the moon.
Snow crystals appear in different colors primarily due to light interference (thin films, prisms) or contamination, with thin-film interference causing iridescent blues, purples, and rainbow hues from light reflecting off layers, while contamination from algae (watermelon snow, green) or dirt/pollen creates vibrant reds, greens, and even blacks, altering the crystal's pure white appearance