Friday, July 17, 2020

The Two Tails of Comet Neowise are Featured at NASA via APOD's Astronomy Picture of the Day Photographed by Petr Horalek

Our comment to photograph and material below from APOD and NASA: The two tails of Comet Neowise, visible to the naked eye, may have been seen similarly by megalithic builders in the previous 5th millennium passage of Neowise near Planet Earth. Those ancient stargazers could have depicted the two tails by a figure that modern researchers have guessed to be the rather improbably gigantic spout of a whale at the focus of the megalithic site of
Mané Lud, Locmariaquer, Morbihan bei Carnac, Brittany, France.
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The image below via NASA is linked from the APOD website,
which presents the The Long Tails of Comet NEOWISE
Image Credit & Copyright: Petr Horalek:
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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.

2020 July 16
See Explanation. Clicking on the picture will download the highest resolution version available.

The Long Tails of Comet NEOWISE
Image Credit & Copyright: Petr Horalek
Explanation: This Comet NEOWISE (C/2020 F3) now sweeps through our fair planet's northern skies. Its long tails stretch across this deep skyview from Suchy Vrch, Czech Republic. Recorded on the night of July 13/14, the composite of untracked foreground and tracked and filtered sky exposures teases out details in the comet's tail not visible to the unaided eye. Faint structures extend to the top of the frame, over 20 degrees from the comet's bright coma. Pushed out by the pressure of sunlight itself, the broad curve of the comet's yellowish dust tail is easy to see by eye. But the fainter, more bluish tail is separate from the reflective comet dust. The fainter tail is an ion tail, formed as ions from the cometary coma are dragged outward by magnetic fields in the solar wind and fluoresce in the sunlight. Outbound NEOWISE is climbing higher in northern evening skies, coming closest to Earth on July 23rd.

Notable Images of Comet NEOWISE Submitted to APOD: || July 15 || July 14 || July 13 || July 12 || July 11 || July 10 & earlier ||
Tomorrow's picture: tales in space
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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
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& Michigan Tech. U.


Posted by Andis Kaulins at 7/17/2020 12:49:00 PM

Most Popular Posts of All Time

Sky Earth Native America


Sky Earth Native America 1:
American Indian Rock Art Petroglyphs Pictographs
Cave Paintings Earthworks & Mounds as Land Survey & Astronomy,
Volume 1, Edition 2, 266 pages, by Andis Kaulins.

  • Sky Earth Native America 2:
    American Indian Rock Art Petroglyphs Pictographs
    Cave Paintings Earthworks & Mounds as Land Survey & Astronomy    ,
    Volume 2, Edition 2, 262 pages, by Andis Kaulins.

    • Both volumes have the same cover except for the labels "Volume 1" viz. "Volume 2".
    The image on the cover was created using public domain space photos of Earth from NASA.

    -----

    Both book volumes contain the following basic book description:
    "Alice Cunningham Fletcher observed in her 1902 publication in the American Anthropologist
    that there is ample evidence that some ancient cultures in Native America, e.g. the Pawnee in Nebraska,
    geographically located their villages according to patterns seen in stars of the heavens.
    See Alice C. Fletcher, Star Cult Among the Pawnee--A Preliminary Report,
    American Anthropologist, 4, 730-736, 1902.
    Ralph N. Buckstaff wrote:
    "These Indians recognized the constellations as we do, also the important stars,
    drawing them according to their magnitude.
    The groups were placed with a great deal of thought and care and show long study.
    ... They were keen observers....
    The Pawnee Indians must have had a knowledge of astronomy comparable to that of the early white men."
    See Ralph N. Buckstaff, Stars and Constellations of a Pawnee Sky Map,
    American Anthropologist, Vol. 29, Nr. 2, April-June 1927, pp. 279-285, 1927.
    In our book, we take these observations one level further
    and show that megalithic sites and petroglyphic rock carving and pictographic rock art in Native America,
    together with mounds and earthworks, were made to represent territorial geographic landmarks
    placed according to the stars of the sky using the ready map of the starry sky
    in the hermetic tradition, "as above, so below".
    That mirror image of the heavens on terrestrial land is the "Sky Earth" of Native America,
    whose "rock stars" are the real stars of the heavens, "immortalized" by rock art petroglyphs, pictographs,
    cave paintings, earthworks and mounds of various kinds (stone, earth, shells) on our Earth.
    These landmarks were placed systematically in North America, Central America (Meso-America) and South America
    and can to a large degree be reconstructed as the Sky Earth of Native America."


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