Posted on Jul 27, 2021
APOD: 2021 July 27 - Flemings Triangular Wisp
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Good morning, Rallypoint. Today's Astronomy Picture of the Day (APOD) is titled "Fleming's Triangular Wisp." This section of the Veil Nebula (NGC 6979) is found some 2,400 light years away in the constellation Cygnus (the Swan). It is also called 'Pickering's Triangle.' Why the two names? Pickering was Edward Charles Pickering, professor of astronomy and director of the Harvard Observatory. Fleming was Scottish lass Williamina Paton Stevens Fleming, born in 1857 and married to James Fleming in 1877.
In 1878, Williamina and her husband emigrated to Boston. She was hired by Pickering in 1881, which marked the start of a 32-year career in the field of astronomy. She developed the first system to classify stars according to their spectra. Over 10,000 stars were cataloged by 1890. In addition to the Veil Nebula and Fleming's Triangular Wisp, she is credited with discovering 51 other nebulae, 10 novae, and 310 variable stars. In 1906, she was first woman elected to the UK's Royal Astronomical Society in recognition of her achievements. And an American woman at that.
That's one of the things I like about background stories. You never know quite how they are going to turn out.
In 1878, Williamina and her husband emigrated to Boston. She was hired by Pickering in 1881, which marked the start of a 32-year career in the field of astronomy. She developed the first system to classify stars according to their spectra. Over 10,000 stars were cataloged by 1890. In addition to the Veil Nebula and Fleming's Triangular Wisp, she is credited with discovering 51 other nebulae, 10 novae, and 310 variable stars. In 1906, she was first woman elected to the UK's Royal Astronomical Society in recognition of her achievements. And an American woman at that.
That's one of the things I like about background stories. You never know quite how they are going to turn out.
APOD: 2021 July 27 - Flemings Triangular Wisp
Posted from apod.nasa.gov
NASA
Space
Science
Photography
Astronomy
Edited >1 y ago
Posted >1 y ago
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Cygnus Loop | Western Veil | Eastern Veil | Pickering's Triangle
The Cygnus Loop is a large supernova remnant in the Cygnus constellation. It is an emission nebula lying at a distance of about 2500 ly. The whole structure ...
MY APOLOGIES TO YOU ALL!!! I inadvertently forgot to append the link to the video - SORRY!
Good Tuesday morning Maj William W. 'Bill' Price and thank you for another superb APOD for this fine day! This is a tantalizing image and although this image was released as Fleming's Triangular Wisp, you mentioned that it is also named Pickering's Triangle and has several components...
I was able to find what I consider a gem of a video the is titled the Cygnus Loop | Western Veil | Eastern Veil | Pickering's Triangle and I bring this to you and your many followers as a beautiful adjunct video to show more of this Tantalizing Triangular Wisp!!! I know whomever watches this will love it!! I recommend watching this FULL SCREEN WITH SOUND APPROPRIATE... for maximum astronomy effect...
Kerry
https://youtu.be/KaWws0ZOk8U
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Good Tuesday morning Maj William W. 'Bill' Price and thank you for another superb APOD for this fine day! This is a tantalizing image and although this image was released as Fleming's Triangular Wisp, you mentioned that it is also named Pickering's Triangle and has several components...
I was able to find what I consider a gem of a video the is titled the Cygnus Loop | Western Veil | Eastern Veil | Pickering's Triangle and I bring this to you and your many followers as a beautiful adjunct video to show more of this Tantalizing Triangular Wisp!!! I know whomever watches this will love it!! I recommend watching this FULL SCREEN WITH SOUND APPROPRIATE... for maximum astronomy effect...
Kerry
https://youtu.be/KaWws0ZOk8U
_____________________________________________________________________________
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Thank you my friend Maj William W. 'Bill' Price for posting the NASA Astronomy Picture of the Day (APOD) for Tuesday, July 27, 2021 entitled "Fleming's Triangular Wisp."
Image: Fleming's Triangular Wisp - Image Credit & Copyright - Anthony Saab
APOD background
"Explanation: Chaotic in appearance, these tangled filaments of shocked, glowing gas are spread across planet Earth's sky toward the constellation of Cygnus as part of the Veil Nebula. The Veil Nebula itself is a large supernova remnant, an expanding cloud born of the death explosion of a massive star. Light from the original supernova explosion likely reached Earth over 5,000 years ago. The glowing filaments are really more like long ripples in a sheet seen almost edge on, remarkably well separated into the glow of ionized hydrogen atoms shown in blue and oxygen in red hues. Also known as the Cygnus Loop and cataloged as NGC 6979, the Veil Nebula now spans about 6 times the diameter of the full Moon. The length of the wisp corresponds to about 30 light years, given its estimated distance of 2,400 light years. Often identified as Pickering's Triangle for a director of Harvard College Observatory, it is also named for its discoverer, astronomer Williamina Fleming, as Fleming's Triangular Wisp."
The tangling web of Fleming's Triangular Wisp brings to mind.
Bob Dylan - Tangled Up In Blue (Video)
https://www.youtube.com/watch?v=YwSZvHqf9qM
FYI COL Mikel J. Burroughs SMSgt Lawrence McCarter LTC (Join to see) MAJ Dale E. Wilson, Ph.D. Maj Bill Smith, Ph.D. Sgt Albert Castro PO1 William "Chip" Nagel SSG Franklin Briant GySgt Thomas Vick Lt Col John (Jack) Christensen MSgt James Clark-Rosa SGT Charlie Lee CSM Charles Hayden Passed 7/29/2025 Maj Marty Hogan Sgt (Join to see) MAJ Dale E. Wilson, Ph.D. COL Lisandro Murphy
Image: Fleming's Triangular Wisp - Image Credit & Copyright - Anthony Saab
APOD background
"Explanation: Chaotic in appearance, these tangled filaments of shocked, glowing gas are spread across planet Earth's sky toward the constellation of Cygnus as part of the Veil Nebula. The Veil Nebula itself is a large supernova remnant, an expanding cloud born of the death explosion of a massive star. Light from the original supernova explosion likely reached Earth over 5,000 years ago. The glowing filaments are really more like long ripples in a sheet seen almost edge on, remarkably well separated into the glow of ionized hydrogen atoms shown in blue and oxygen in red hues. Also known as the Cygnus Loop and cataloged as NGC 6979, the Veil Nebula now spans about 6 times the diameter of the full Moon. The length of the wisp corresponds to about 30 light years, given its estimated distance of 2,400 light years. Often identified as Pickering's Triangle for a director of Harvard College Observatory, it is also named for its discoverer, astronomer Williamina Fleming, as Fleming's Triangular Wisp."
The tangling web of Fleming's Triangular Wisp brings to mind.
Bob Dylan - Tangled Up In Blue (Video)
https://www.youtube.com/watch?v=YwSZvHqf9qM
FYI COL Mikel J. Burroughs SMSgt Lawrence McCarter LTC (Join to see) MAJ Dale E. Wilson, Ph.D. Maj Bill Smith, Ph.D. Sgt Albert Castro PO1 William "Chip" Nagel SSG Franklin Briant GySgt Thomas Vick Lt Col John (Jack) Christensen MSgt James Clark-Rosa SGT Charlie Lee CSM Charles Hayden Passed 7/29/2025 Maj Marty Hogan Sgt (Join to see) MAJ Dale E. Wilson, Ph.D. COL Lisandro Murphy
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https://www.youtube.com/watch?v=XDl8ZPm3GrU
FYI CSM Charles Hayden Passed 7/29/2025SPC Woody Bullard Cpl (Join to see) SFC William Farrell SPC Michael TerrellSSG Paul HeadleeSPC Michael Duricko, Ph.D Cpl Vic Burk PO1 H Gene Lawrence Maj William W. 'Bill' Price PO2 (Join to see) LTC John ShawSGT Steve McFarland 1LT Voyle Smith SPC Nancy GreeneSPC Steve Irvine LTC Ken Connolly LTC David Brown Linda Lawrence SGT Michael Hearn
https://www.youtube.com/watch?v=XDl8ZPm3GrU
FYI CSM Charles Hayden Passed 7/29/2025SPC Woody Bullard Cpl (Join to see) SFC William Farrell SPC Michael TerrellSSG Paul HeadleeSPC Michael Duricko, Ph.D Cpl Vic Burk PO1 H Gene Lawrence Maj William W. 'Bill' Price PO2 (Join to see) LTC John ShawSGT Steve McFarland 1LT Voyle Smith SPC Nancy GreeneSPC Steve Irvine LTC Ken Connolly LTC David Brown Linda Lawrence SGT Michael Hearn
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https://www.youtube.com/watch?v=GSUCIlzrvHc
FYI SSG Michael Noll SFC Bernard WalkoSGT Denny EspinosaSP5 Dennis LobergerLinda LawrenceMSgt James Clark-RosaSMSgt Mark VenezioMGySgt (Join to see)SFC Ralph E KelleySSG Robert WebsterSGT Randell RoseCSM (Join to see)SSG Paul Headlee SGT James Murphy ~1457031:SP5 Geoffrey Vannerson]SGM Gerald Fife Sgt Jim Belanus SGM Bill Frazer SPC Woody Bullard CPT (Join to see)
Jackie Lomax - How The Web Was Woven (1970)
https://www.youtube.com/watch?v=GSUCIlzrvHc
FYI SSG Michael Noll SFC Bernard WalkoSGT Denny EspinosaSP5 Dennis LobergerLinda LawrenceMSgt James Clark-RosaSMSgt Mark VenezioMGySgt (Join to see)SFC Ralph E KelleySSG Robert WebsterSGT Randell RoseCSM (Join to see)SSG Paul Headlee SGT James Murphy ~1457031:SP5 Geoffrey Vannerson]SGM Gerald Fife Sgt Jim Belanus SGM Bill Frazer SPC Woody Bullard CPT (Join to see)
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