Astro AEC
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10 hours ago · The semi-major axis of the geocentric lunar orbit, called the lunar distance, is approximately 400,000 km (250,000 miles or 1.28 light-seconds), comparable to going around Earth 9.5 times. The Moon makes a complete orbit around Earth with respect to the fixed stars, its sidereal period, about once every 27.3 days.
10 hours ago · Etymology The English word sun developed from Old English sunne. Cognates appear in other Germanic languages, including West Frisian sinne, Dutch zon, Low German Sünn, Standard German Sonne, Bavarian Sunna, Old Norse sunna, and Gothic sunnō. All these words stem from Proto-Germanic * sunnōn. This is ultimately related to the word for sun in other branches of the Indo-European language ...
10 hours ago · Properties Form and structure Gallium crystals Most metals are shiny and lustrous, at least when polished, or fractured. Sheets of metal thicker than a few micrometres appear opaque, but gold leaf transmits green light. This is due to the electrons which reflect light. Although most elemental metals have higher densities than nonmetals, is a wide variation in their densities, lithium being the ...
10 hours ago · Sunday: Tomorrow morning, July arrives for early risers with a fine display of the waning Crescent Moon to the upper right of the reddish Mars, slowly starting to brighten in the morning skies. The viewing starts near 2:30, and fades in the brightening twilight by 4:30. You might catch Jupiter, much brighter but much lower and to the left by 4 ...
10 hours ago · by FLEK Admin | Jun 29, 2024 | SunRiseSet. Sunrise: 5:09 AM. Sunset: 8:38 PM. Length of the day: 15 hours and 29 minutes. June of 1919 was famous for an early season heat wave that featured some of Vermont’s hottest weather on record. But over a century ago on this date, the weather did a flip-flop, and thermometers tumbled to record lows.
