| | July 7 Sunspots and Planetary Tides | | | |
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| | An ultraviolet image of the sun, overlaid with a map of its magnetic field lines. Image via NASA/SDO/AIA/LMSAL. | | |
| Will planetary low tide force regular sunspot sync-ups? | | No, it’s not pseudoscience. Does a regular alignment of planets make a strong-enough tug to regulate the sun’s 11- and 22-year cycles? Read more in this story via EOS - a source for news and perspectives about Earth and space science - from the American Geophysical Union. | | | | | | | |
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| | | Tonight … Use Big Dipper to find Polaris | Draw a line through the Big Dipper pointer stars to find Polaris, Earth's pole star. If your sky is dark, also look for a former pole star, Thuban, in the Tail of Draco the Dragon. Read more and find more charts. | | | | |
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| | Mercury and Mars, above twin volcanoes in East Java | View at EarthSky Community Photos. | Martin Marthadinata captured this image from Tosari Bromo Tengger Semeru National Park in East Java, a province of Indonesia. He wrote: "Early July dusk planets Mercury (upper) and Mars (lower) sit low behind twin volcanoes Arjuno-Welirang in the west at sunset." Thank you, Martin! | | |