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Iridescent mid altitude clouds Iridescent polar stratospheric cloud at sunset over Aberdeen, Scotland Cloud iridescence, seen above the clouds covered with grey clouds, Pondicherry, India. Cloud iridescence or irisation is a colorful optical phenomenon that occurs in a cloud and appears in the general proximity of the Sun or Moon.
Also present are molecular hydrogen, atomic helium, C 18 O (CO with oxygen as the 18 O isotope), CS, NH 3 , H 2 CO (formaldehyde), c-C 3 H 2 (cyclopropenylidene) and a molecular ion N 2 H + (diazenylium), all of which are relatively transparent. These clouds are the spawning grounds of stars and planets, and understanding their development is ...
The yellow color is due to the presence of pollutants in the smoke. Yellowish clouds caused by the presence of nitrogen dioxide are sometimes seen in urban areas with high air pollution levels. [22] Red, orange and pink clouds occur almost entirely at sunrise and sunset and are the result of the scattering of sunlight by the atmosphere.
The million-year-old star at the center of the disk has a temperature of 3,000 K and is emitting 0.4 times the luminosity of the Sun. [12] The 2023 NASA/ESA/CSA James Webb Space Telescope image—released on the telescope's first anniversary—shows young stars, roughly the size of the Sun, at the center of circumstellar discs. These represent ...
Paranal Observatory nights. [3] The concept of noctcaelador tackles the aesthetic perception of the night sky. [4]Depending on local sky cloud cover, pollution, humidity, and light pollution levels, the stars visible to the unaided naked eye appear as hundreds, thousands or tens of thousands of white pinpoints of light in an otherwise near black sky together with some faint nebulae or clouds ...
IRAS image of Chamaeleon I, II and III. The Dark Doodad Nebula is the red filament at the top. The Dark Doodad Nebula is the red filament at the top. The Chamaeleon complex is a large star forming region (SFR) at the surface of the Local Bubble that includes the Chamaeleon I, Chamaeleon II, and Chamaeleon III dark clouds .
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Sometimes, it lets stars in the night sky be visible. [1] It is the opposite of the cloud variety opacus, which isn't translucent, but opaque. [2] [3] [4] The cloud variety manifests in clouds with thin water particles or ice crystals.