i2023-02-09
MONDE MAGIQUE - Racines de l'éternité - Le Matterhorn - Zermatt - Valais - Suisse
iASTRONOMY - Nacreous Clouds over Lapland
2023 February 9
Image Credit & Copyright: Dennis Lehtonen
Explanation: Vivid and lustrous, wafting iridescent waves of color wash across this skyscape from Kilpisjärvi, Finland. Known as nacreous clouds or mother-of-pearl clouds, they are rare. But their unforgettable appearance was captured looking south at 69 degrees north latitude at sunset on January 24. A type of polar stratospheric cloud, they form when unusually cold temperatures in the usually cloudless lower stratosphere form ice crystals. Still sunlit at altitudes of around 15 to 25 kilometers, the clouds can diffract sunlight even after sunset and just before the dawn.
PORTUGAL - MONUMENTOS PORTUGUESES NO MUNDO - Igreja do Bom Jesus (Índia)

2023-02-08
2023-02-07
2023-02-06
FRANCE - BEAUX SITES - Les châteaux cathares
Crédit photo : Shutterstock – Veronika Kovalenko
FRANCE - PAYS BASQUE - Beaux villages - Ustaritz

Crédit Photo : Shutterstock – Natoe
ASTRONOMY - In the Heart of the Rosette Nebula
2023 February 6
Image Credit & Copyright: Lyman Insley
Explanation: In the heart of the Rosette Nebula lies a bright cluster of stars that lights up the nebula. The stars of NGC 2244 formed from the surrounding gas only a few million years ago. The featured image taken in mid-January using multiple exposures and very specific colors of Sulfur (shaded red), Hydrogen (green), and Oxygen (blue), captures the central region in tremendous detail. A hot wind of particles streams away from the cluster stars and contributes to an already complex menagerie of gas and dust filaments while slowly evacuating the cluster center. The Rosette Nebula's center measures about 50 light-years across, lies about 5,200 light-years away, and is visible with binoculars towards the constellation of the Unicorn (Monoceros).


