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4 images of the Sun, approx. 12 hours apart Synoptic map of the Sun Note that at the equator the Solar rotation period is 24.47 days which is the sidereal motion and a synodic rotation period of 26.24 days, which is the time for a fixed feature of the Sun to rotate to the same apparent position as viewed from Earth.

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    AkaSci 🛰️ (akasci@fosstodon.org)'s status on Tuesday, 11-Jun-2024 09:04:19 JST AkaSci 🛰️ AkaSci 🛰️
    in reply to

    34 hours of evolution of the boiling surface of the Sun as seen in images taken by the NASA Solar Dynamics Observatory SDO. Sunspot region 3664, which produced the brilliant light show on earth, is rotating away, while other regions are rotating in.

    Also, shown is a synoptic map of the Sun identifying sunspot regions.

    Note that the Sun has a synodic rotation period of 26.24 days at the equator, almost 38 days at the poles.

    https://sdo.gsfc.nasa.gov/data/
    https://www.swpc.noaa.gov/products/solar-synoptic-map
    30/n

    In conversation about a year ago from fosstodon.org permalink
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GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.

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