Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Lunar tidal acceleration determined from laser range measures.

O Calame, J D Mulholland

    Science (New York, N.Y.)
    |March 3, 1978
    PubMed
    Summary
    This summary is machine-generated.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    Poststroke subgranular and rostral subventricular zone proliferation in a mouse model of neonatal stroke.

    Journal of neuroscience research·2009
    Same author

    Neurogenesis and neuronal commitment following ischemia in a new mouse model for neonatal stroke.

    Brain research·2008
    Same author

    The language problem.

    Science (New York, N.Y.)·1981
    Same author

    Dynamical astronomy.

    Science (New York, N.Y.)·1979
    Same author

    Pluto's Neighbor.

    Science (New York, N.Y.)·1978
    Same author

    Archeoastronomy.

    Science (New York, N.Y.)·1978
    Same journal

    Erratum for the Research Article "Detecting supramolecular organic nanoparticles during heat wave".

    Science (New York, N.Y.)·2026
    Same journal

    Local signals, systemic decline.

    Science (New York, N.Y.)·2026
    Same journal

    The mechanics of liver regeneration.

    Science (New York, N.Y.)·2026
    Same journal

    Computing in a memory with physics.

    Science (New York, N.Y.)·2026
    Same journal

    Retraction.

    Science (New York, N.Y.)·2026
    Same journal

    Making time.

    Science (New York, N.Y.)·2026
    See all related articles

    Scientists analyzed lunar laser ranging data from 1969-1976 to measure the Moon's secular acceleration. The study determined an acceleration of -24.6 arc seconds per century squared, consistent with tidal friction effects.

    Area of Science:

    • * Astronomy and Astrophysics
    • * Geophysics and Geodesy
    • * Celestial Mechanics

    Background:

    • * The Moon's orbital motion is influenced by Earth's tidal friction, causing a secular acceleration.
    • * Previous studies have estimated this acceleration, but precise measurements are crucial for understanding Earth-Moon system dynamics.

    Purpose of the Study:

    • * To determine the anomalous secular acceleration in the Moon's mean longitude using lunar laser ranging data.
    • * To assess the contribution of tidal friction to this acceleration.
    • * To explore the possibility of separating tidal effects from variations in the gravitational constant.

    Main Methods:

    • * Analysis of lunar laser ranging (LLR) measurements spanning from 1969 to 1976.
    • * Application of various observational models and data sets to derive the acceleration.

    Related Experiment Videos

  • * Comparison of determined values against atomic time scales and conventional estimates.

    • Main Results:

    • * The determined secular acceleration is -24.6 ± 1.6 arc seconds per century squared.
    • * This value aligns well with established conventional values and recent findings from other methods.
    • * An attempt to determine the rate of change of the Moon's mean distance did not yield significant results due to insufficient observation duration.

    Conclusions:

    • * The study confirms the anomalous secular acceleration of the Moon, largely attributed to tidal friction.
    • * LLR data provides a robust method for refining estimates of lunar orbital parameters.
    • * Longer observational baselines are required to investigate potential variations in fundamental constants like the gravitational constant.