noctilucent clouds
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noctilucent clouds — Clouds of unknown composition that occur at great heights, 45 to 55 miles (70–90 km). They resemble thin cirrus clouds but usually with a bluish or silverish color, although sometimes orange to red, standing out against a dark night sky. Also… … Aviation dictionary
Noctilucent cloud — Polar mesospheric cloud Noctilucent clouds over Kuresoo bog, Viljandimaa, Estonia Abbreviation NLC/PMC Altitude … Wikipedia
noctilucent — [näk΄tə lo͞o′sənt] adj. [ NOCTI + LUCENT] shining in the night: said esp. of high altitude clouds (75 to 90 km or 46 to 56 mi above the earth) that reflect twilight to the earth long after sunset or long before sunrise … English World dictionary
noctilucent — noctilucence, n. /nok teuh looh seuhnt/, adj. Meteorol. (of high altitude clouds) visible during the short night of the summer. [1885 90; NOCTI + LUCENT] * * * … Universalium
noctilucent — adjective Shining or glowing at night, especially of very high altitude clouds that reflect sunlight long after sunset … Wiktionary
noctilucent — noc•ti•lu•cent [[t]ˌnɒk təˈlu sənt[/t]] adj. mer (of high altitude clouds) visible during the short night of the summer • Etymology: 1885–90; < Lnocti =noct , s. of nox night + i +lucent noc ti•lu′cence, n … From formal English to slang
noctilucent — /nɒktəˈlusənt/ (say noktuh loohsuhnt) adjective 1. shining at night; phosphorescent. 2. Meteorology (of clouds) very high and cirrus like, visible during the short night of summer and believed to be of meteor dust shining with reflected sunlight …
NLC — • Noctilucent Clouds nachtleuchtende Wolken, (synonym zu) Nordlicht Meteorologie / Astronomie • Lemoore Reeves NAS, CA, USA internationale Flughafen Kennung … Acronyms
Cloud — For other uses, see Cloud (disambiguation). Cumulus cloudscape over Swifts Creek, Australia A cloud … Wikipedia
Charged Aerosol Release Experiment — The Charged Aerosol Release Experiment also known as CARE, is a project run by NASA which will use a rocket to release of dust in the upper atmosphere to form a dusty plasma in space.[1] NASA plans to trigger cloud formation around the rocket s… … Wikipedia
Polar stratospheric cloud — Antarctic stratospheric cloud (nacreous clouds) Abbreviation PSC Altitude 15,000–25,000 m (50,000–80,000 ft) … Wikipedia
