Posted on Sep 26, 2021
APOD: 2021 September 26 - The Red Square Nebula
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Good morning, Rallypoint. Today's Astronomy Picture of the Day (APOD) is titled "The Red Square Nebula." Looks like it is possible to square a round hole. Or in this case, the usually round nebula. Located 5,000 light years away in the constellation Serpens, the first infrared images of the Red Square Nebula were published in April 2007 (and were APOD features in both 2007 and 2011). The star (or stars) at the center of the Red Square Nebula are known as MWC 922.
Researchers think we are looking at two cones originating with the central star/s and radiating outward. Astronomer Peter Tuthill explains it best:
"The startling degree of symmetry and level of intricate linear form make the Red Square nebula around MWC 922 the most symmetrical object of comparable complexity ever imaged. The overall architecture displays a twin opposed conical cavities (known as a bipolar nebula), along the axis of which can be seen a remarkable sequence of sharply defined linear rungs or bars. This series of rungs and conical surfaces lie nested, one within the next, down to the heart of the system, where the hyperbolic bicone surfaces are crossed by a dark lane running across the principle axis."
Pretty cool.
Researchers think we are looking at two cones originating with the central star/s and radiating outward. Astronomer Peter Tuthill explains it best:
"The startling degree of symmetry and level of intricate linear form make the Red Square nebula around MWC 922 the most symmetrical object of comparable complexity ever imaged. The overall architecture displays a twin opposed conical cavities (known as a bipolar nebula), along the axis of which can be seen a remarkable sequence of sharply defined linear rungs or bars. This series of rungs and conical surfaces lie nested, one within the next, down to the heart of the system, where the hyperbolic bicone surfaces are crossed by a dark lane running across the principle axis."
Pretty cool.
APOD: 2021 September 26 - The Red Square Nebula
Posted from apod.nasa.gov
Posted 3 y ago
Responses: 11
Posted 3 y ago
Maj William W. 'Bill' Price good day my friend, I have said it time after time, " nobody does it better from above." Thanks for Today's Astronomy Picture of the Day (APOD) is titled "The Red Square Nebula." I appreciate the Astronomy as usual, be safe and have a great day my friend.
SGT David A. 'Cowboy' Groth SCPO Morris Ramsey CPL Douglas Chrysler Wayne Soares PO1 William "Chip" Nagel SGT Charlie Lee SMSgt David A Asbury Maj Marty Hogan SPC Margaret Higgins SGT (Join to see) PO3 Phyllis Maynard Sgt (Join to see) PO1 H Gene Lawrence Lt Col Charlie Brown iPVT Mark Zehner SSG Michael Noll Lt Col John (Jack) Christensen MAJ Dale E. Wilson, Ph.D. Cpl Vic Burk
SGT David A. 'Cowboy' Groth SCPO Morris Ramsey CPL Douglas Chrysler Wayne Soares PO1 William "Chip" Nagel SGT Charlie Lee SMSgt David A Asbury Maj Marty Hogan SPC Margaret Higgins SGT (Join to see) PO3 Phyllis Maynard Sgt (Join to see) PO1 H Gene Lawrence Lt Col Charlie Brown iPVT Mark Zehner SSG Michael Noll Lt Col John (Jack) Christensen MAJ Dale E. Wilson, Ph.D. Cpl Vic Burk
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So much for the rules of Physics! Maj William W. 'Bill' Price. A square peg in a round hole type of story.... or vice versa? Very cool indeed!
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Maj William W. 'Bill' Price
3 y
CWO3 Dennis M. Here's the link from the Tuthill paper that I pulled his quote from. Scroll down and you'll see some animations of what they think we might be looking at.
http://www.physics.usyd.edu.au/~gekko/redsquare.html
http://www.physics.usyd.edu.au/~gekko/redsquare.html
This image (left) announces a new arrival in the pantheon of exotically beautiful celestial objects.We have christened this startlingly symmetrical nebula "The Red Square" for its color and form, andalso in recognition of its close cousin - the celebrated Red Rectangle nebula.
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Posted 3 y ago
I would think that we should revisit our Physic's class Maj. Outstanding read.
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