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Good morning, Rallypoint. Today's Astronomy Picture of the Day (APOD) is titled "Windblown NGC 3199." The term 'solar wind' (aka stellar wind) refers to a stream of charged particles (electrons, protons, and alpha particles) released from the upper atmosphere of our Sun. Trace amounts of other heavy ions and atomic nuclei (e.g. carbon, magnesium, sulfur, iron, etc) are also detectable. Solar wind speeds can reach 750 km/sec a short distance from the Sun's surface.
Now imagine a star much bigger, hotter, and brighter than our Sun. The stellar winds from such a star would pack a substantial punch, right? We see the results of that stellar wind in today's APOD. At the heart of NGC 3199 sits the Wolf-Rayet star responsible for the nebula, also called a Wolf-Rayet (WR) bubble. WR stars have a unique spectra (their emission lines on the electromagnetic spectrum) that is unlike other stars. And WR18 sits near the center of NGC 3199. Stellar winds interacting with different densities of intergalactic media (dust, gas, and such) are likely responsible for the variable brightness we see in this narrowband, color enhanced image (about 75 light years across). NGC 3199 is about 12,000 light years away in the southern constellation Carina.
Now imagine a star much bigger, hotter, and brighter than our Sun. The stellar winds from such a star would pack a substantial punch, right? We see the results of that stellar wind in today's APOD. At the heart of NGC 3199 sits the Wolf-Rayet star responsible for the nebula, also called a Wolf-Rayet (WR) bubble. WR stars have a unique spectra (their emission lines on the electromagnetic spectrum) that is unlike other stars. And WR18 sits near the center of NGC 3199. Stellar winds interacting with different densities of intergalactic media (dust, gas, and such) are likely responsible for the variable brightness we see in this narrowband, color enhanced image (about 75 light years across). NGC 3199 is about 12,000 light years away in the southern constellation Carina.
APOD: 2021 May 6 - Windblown NGC 3199
Posted from apod.nasa.gov
NASA
Space
Science
Photography
Astronomy
Posted 3 y ago
Responses: 10
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Thank you my friend Maj William W. 'Bill' Price for posting the NASA Astronomy Picture of the Day (APOD) for Thursday, May 6, 2021 entitled "Windblown NGC 3199."
The imagination of the APOD team seems to know no boundaries :-)
Entitling a cluster of stars to be windblown reminds me of hairstyles coifed to appear 'windblown :-)
The heavens declare the glory of God - to those with eyes to see :-)
Image: Windblown NGC 3199 - Image Credit & Copyright - Mike Selby and Roberto Colombari
APOD Background
"Explanation: NGC 3199 lies about 12,000 light-years away, a glowing cosmic cloud in the nautical southern constellation of Carina. The nebula is about 75 light-years across in this narrowband, false-color view. Though the deep image reveals a more or less complete bubble shape, it does look very lopsided with a much brighter edge along the top. Near the center is a Wolf-Rayet star, a massive, hot, short-lived star that generates an intense stellar wind. In fact, Wolf-Rayet stars are known to create nebulae with interesting shapes as their powerful winds sweep up surrounding interstellar material. In this case, the bright edge was thought to indicate a bow shock produced as the star plowed through a uniform medium, like a boat through water. But measurements have shown the star is not really moving directly toward the bright edge. So a more likely explanation is that the material surrounding the star is not uniform, but clumped and denser near the bright edge of windblown NGC 3199."
The Association - Windy - 1967
https://www.youtube.com/watch?v=RsY8l0Jg3lY
FYI COL Mikel J. Burroughs SMSgt Lawrence McCarter Lt Col John (Jack) Christensen LTC (Join to see)MAJ Dale E. Wilson, Ph.D. Maj Bill Smith, Ph.D. Sgt Albert Castro PO1 William "Chip" Nagel SSG Samuel Kermon SSG Franklin Briant A1C Riley SandersSPC Michael Oles SR TSgt David L. Maj Marty Hogan SMSgt Tom Burns SGT Denny Espinosa 1SG Fred "SARGE" Bucci SPC Nancy Greene SMSgt Tom Burns
The imagination of the APOD team seems to know no boundaries :-)
Entitling a cluster of stars to be windblown reminds me of hairstyles coifed to appear 'windblown :-)
The heavens declare the glory of God - to those with eyes to see :-)
Image: Windblown NGC 3199 - Image Credit & Copyright - Mike Selby and Roberto Colombari
APOD Background
"Explanation: NGC 3199 lies about 12,000 light-years away, a glowing cosmic cloud in the nautical southern constellation of Carina. The nebula is about 75 light-years across in this narrowband, false-color view. Though the deep image reveals a more or less complete bubble shape, it does look very lopsided with a much brighter edge along the top. Near the center is a Wolf-Rayet star, a massive, hot, short-lived star that generates an intense stellar wind. In fact, Wolf-Rayet stars are known to create nebulae with interesting shapes as their powerful winds sweep up surrounding interstellar material. In this case, the bright edge was thought to indicate a bow shock produced as the star plowed through a uniform medium, like a boat through water. But measurements have shown the star is not really moving directly toward the bright edge. So a more likely explanation is that the material surrounding the star is not uniform, but clumped and denser near the bright edge of windblown NGC 3199."
The Association - Windy - 1967
https://www.youtube.com/watch?v=RsY8l0Jg3lY
FYI COL Mikel J. Burroughs SMSgt Lawrence McCarter Lt Col John (Jack) Christensen LTC (Join to see)MAJ Dale E. Wilson, Ph.D. Maj Bill Smith, Ph.D. Sgt Albert Castro PO1 William "Chip" Nagel SSG Samuel Kermon SSG Franklin Briant A1C Riley SandersSPC Michael Oles SR TSgt David L. Maj Marty Hogan SMSgt Tom Burns SGT Denny Espinosa 1SG Fred "SARGE" Bucci SPC Nancy Greene SMSgt Tom Burns
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LTC Stephen F.
Kansas - Dust in the Wind (Official Video)
Official music video for “Dust in the Wind” by KansasListen to Kansas: https://Kansas.lnk.to/listenYDWatch more videos by Kansas: https://Kansas.lnk.to/liste...
Kansas - Dust in the Wind (Official Video)
https://www.youtube.com/watch?v=tH2w6Oxx0kQ
FYI CSM Bruce TregoSPC Woody Bullard CPL Douglas ChryslerCpl (Join to see) SFC William Farrell SPC Michael TerrellSSG Paul Headlee SPC Michael Duricko, Ph.D SSG Michael Noll SPC Randy Zimmerman Sgt Vance Bonds Cpl Vic Burk PO1 H Gene Lawrence Maj William W. 'Bill' Price SSgt Clare May SPC Diana D. SSG Bill McCoy PO2 (Join to see) Cpl James R. " Jim" Gossett Jr Lt Col Charlie Brown
https://www.youtube.com/watch?v=tH2w6Oxx0kQ
FYI CSM Bruce TregoSPC Woody Bullard CPL Douglas ChryslerCpl (Join to see) SFC William Farrell SPC Michael TerrellSSG Paul Headlee SPC Michael Duricko, Ph.D SSG Michael Noll SPC Randy Zimmerman Sgt Vance Bonds Cpl Vic Burk PO1 H Gene Lawrence Maj William W. 'Bill' Price SSgt Clare May SPC Diana D. SSG Bill McCoy PO2 (Join to see) Cpl James R. " Jim" Gossett Jr Lt Col Charlie Brown
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SPC Michael Duricko, Ph.D
LTC Stephen F. Another awesome song! Keep them coming Sir you're on a fantastic musical roll.
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how does the solar winds effect us on earth. I hear that we are facing and have been getting a massive amounts of solar wind
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Sgt (Join to see)
SPC Russ Bolton -
The solar wind and the charged particles it carries can affect Earth's satellites and Global Positioning Systems (GPS). Powerful bursts can damage satellites, or can push GPS signals to be off by tens of meters. The solar wind ruffles all of the planets in the solar system.
The solar wind and the charged particles it carries can affect Earth's satellites and Global Positioning Systems (GPS). Powerful bursts can damage satellites, or can push GPS signals to be off by tens of meters. The solar wind ruffles all of the planets in the solar system.
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SPC Michael Duricko, Ph.D
Sgt (Join to see) That is unbelievable information! "Ruffles all of the planets"! We should never complain about some wind on earth that ruffles our hair ever again.
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