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  • Stargazing News - September 19th, 2024

    From CJ@21:2/156 to All on Wed Sep 18 11:12:26 2024
    Thursday, September 19, 2024

    Reiner Gamma Lunar Swirl (all night)

    Oceanus Procellarum is the large, dark mare region near the western (left- hand) limb of the moon. The Reiner Gamma Lunar Swirl is a small, high-albedo area located just inside the western edge of Procellarum, due north of the
    dark crater Grimaldi and due west of the bright, rayed crater Kepler. It is best seen a night or two after the moon's full phase. The 18 mile or 30 km diameter crater Reiner is located east-southeast of Reiner Gamma. The swirl
    is composed of ancient lunar basalt that has not been darkened by weathering, likely due to protection from cosmic rays by a strong localized magnetic
    field - the swirl has one of the strongest magnetic anomalies on the moon! At high magnification, its complex, swirling shape can be discerned.

    (Data Courtesy of Starry Night)
    --- SBBSecho 3.20-Linux
    * Origin: CJ's Place, Orange City FL > cjsplace.thruhere.net (21:2/156)