Free Republic 3rd Qtr 2024 Fundraising Target: $81,000 Receipts & Pledges to-date: $14,536
17%  
Woo hoo!! And we're now over 17%!! Thank you all very much!! God bless.

Keyword: lunation

Brevity: Headers | « Text »
  • Astronomy Picture of the Day - Rotating Moon from LRO

    06/02/2024 1:53:13 PM PDT · by MtnClimber · 7 replies
    NASA ^ | 2 Jun, 2024 | Video Credit: NASA, LRO, Arizona State U.
    Explanation: No one, presently, sees the Moon rotate like this. That's because the Earth's moon is tidally locked to the Earth, showing us only one side. Given modern digital technology, however, combined with many detailed images returned by the Lunar Reconnaissance Orbiter (LRO), a high resolution virtual Moon rotation movie has been composed. The featured time-lapse video starts with the standard Earth view of the Moon. Quickly, though, Mare Orientale, a large crater with a dark center that is difficult to see from the Earth, rotates into view just below the equator. From an entire lunar month condensed into 24...
  • APOD: Lunations (09/12/18)

    09/28/2018 9:56:51 AM PDT · by zeugma · 5 replies
    Astronomy Picture of the Day ^ | 9/12/18 | NASA's Scientific Visualization Studio;
    Our Moon's appearance changes nightly. As the Moon orbits the Earth, the half illuminated by the Sun first becomes increasingly visible, then decreasingly visible. The featured video animates images taken by NASA's Moon-orbiting Lunar Reconnaissance Orbiter to show all 12 lunations that appear this year, 2018. A single lunation describes one full cycle of our Moon, including all of its phases. A full lunation takes about 29.5 days, just under a month (moon-th). As each lunation progresses, sunlight reflects from the Moon at different angles, and so illuminates different features differently. During all of this, of course, the Moon always...
  • Nasa to put man on far side of moon

    03/18/2006 4:10:56 PM PST · by iPod Shuffle · 157 replies · 3,453+ views
    The Sunday Times March 19, 2006 Nasa to put man on far side of moon Jonathan Leake , Science Editor NASA, the American space agency, has unveiled plans for one of the largest rockets ever built to take a manned mission to the far side of the moon. It will ferry a mother ship and lunar lander into Earth orbit to link up with a smaller rocket carrying the crew. Once united they will head for the moon where the larger ship will remain in orbit after launching the lunar lander and crew. The design emerged during a space science...
  • Astronomy Picture of the Day 4-17-02

    04/17/2002 6:55:08 PM PDT · by petuniasevan · 16 replies · 275+ views
    NASA ^ | 11-8-99 | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. November 8, 1999 Lunation Credit: António Cidadão Explanation: Our Moon's appearance changes nightly. This slow-loading time-lapse sequence shows what our Moon looks like during a lunation, a complete lunar cycle. As the Moon orbits the Earth, the half illuminated by the Sun first becomes increasingly visible, then decreasingly visible. The Moon always keeps the same face toward the Earth. The Moon's apparent size changes slightly, though, and a...