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Good Red Friday morning, Rallypoint. Today's Astronomy Picture of the Day (APOD) is titled "Messier 81." Also known as NGC 3031 or Bode's Galaxy, M81 is the first of the four deep space beauties discovered by Johann Elert Bode, who found both M81 and M82 (150,000 light years away from M81) on December 31, 1774. According to his historical notes: “I found through the seven-foot telescope, closely above the head of UMa [constellation Ursa Major], east near the star at its ear, two small nebulous patches separated by about 0.75 degrees, the positions of which relative to the neighbored small stars are shown in the tenth figure. The patch Alpha (M81) appears mostly round and has a dense nucleus in the middle."
By investigating Cepheid variables associated with the galaxy, astronomers have determined M81 to be approximately 11 million light years away. Can you imagine how bright it would be had it been closer?
By investigating Cepheid variables associated with the galaxy, astronomers have determined M81 to be approximately 11 million light years away. Can you imagine how bright it would be had it been closer?
APOD: 2021 March 12 - Messier 81
Posted from apod.nasa.gov
NASA
Space
Science
Photography
Astronomy
Edited 4 y ago
Posted 4 y ago
Responses: 8
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Messier 81, also known as Bode's Galaxy! - Galaxy Profiles #5
Messier 81 is a nearby grand design unbarred spiral galaxy located 11,8 million light-years away in the constellation of Ursa Major. M81 is the largest membe...
This is an awesome unbarred galaxy in Ursa Major and thank you for sharing this outstanding APOD, Maj William W. 'Bill' Price... In cooperation with you I am adding an M81 astronomy video, which provides great detail on this majestic Galaxy... I highly recommend that this video be watched in FULL SCREEN with sound comfortable for one's hearing... I believe your followers will enjoy this added information and look see of M81 and the group of M81 galaxies... Have a great Friday, Bill!
For all who view this, please give Bill the upvote ...
Thanks,
Kerry
https://youtu.be/Zc-CszEUy_0
For all who view this, please give Bill the upvote ...
Thanks,
Kerry
https://youtu.be/Zc-CszEUy_0
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AMAZING GRACE IN CHEROKEE - NATIVE AMERICAN
TO ALL NATIVE AMERICANS .... AND FOR ALL THOSE THAT WISH THEY WERE (me).........PEACE BE WITH YOU..........(I am not Native American. I love and respect you...
Thank you my friend Maj William W. 'Bill' Price for posting the NASA Astronomy Picture of the Day (APOD) for Thursday, March 12, 2021 entitled "Messier 81."
Image:
1. Messier 81 - Image Credit & Copyright - Wissam Ayoub
2. Messier-Catalog
3. Objects from the Messier Catalogue.
Yet another wonderful image of the heavens which brings glory to God to those with eyes to see.
I had wondered why so many galaxies have Messier in their name. 'One of the earliest catalogues of objects in the sky was made by Charles Messier. Messier was looking for comets in the 1700's, but kept finding objects that looked fuzzy, like comets, but didn't move.' It is good that Charles Messier developed the catalogue and not Crapper for instance :-)
APOD Background
"Explanation: One of the brightest galaxies in planet Earth's sky is similar in size to our Milky Way Galaxy: big, beautiful Messier 81. Also known as NGC 3031 or Bode's galaxy for its 18th century discoverer, this grand spiral can be found toward the northern constellation of Ursa Major, the Great Bear. The sharp, detailed telescopic view reveals M81's bright yellow nucleus, blue spiral arms, pinkish starforming regions, and sweeping cosmic dust lanes. Some dust lanes actually run through the galactic disk (left of center), contrary to other prominent spiral features though. The errant dust lanes may be the lingering result of a close encounter between M81 and the nearby galaxy M82 lurking outside of this frame. M81's faint, dwarf irregular satellite galaxy, Holmberg IX, can be seen just below the large spiral. Scrutiny of variable stars in M81 has yielded a well-determined distance for an external galaxy -- 11.8 million light-years."
AMAZING GRACE IN CHEROKEE - NATIVE AMERICAN
https://www.youtube.com/watch?v=8_qFbNskjCI
Thank you my friend Sgt (Join to see) for mentioning me.
FYI COL Mikel J. Burroughs SMSgt Lawrence McCarter Lt Col John (Jack) Christensen LTC (Join to see) SCPO Morris Ramsey MAJ Dale E. Wilson, Ph.D. Maj Bill Smith, Ph.D. Sgt Albert Castro PO1 William "Chip" Nagel SSG Stephen Rogerson SSG Samuel Kermon SSG Franklin Briant SP5 Geoffrey Vannerson SMSgt David A Asbury A1C Riley Sanders CPT (Join to see) SGM Bill Frazer
Image:
1. Messier 81 - Image Credit & Copyright - Wissam Ayoub
2. Messier-Catalog
3. Objects from the Messier Catalogue.
Yet another wonderful image of the heavens which brings glory to God to those with eyes to see.
I had wondered why so many galaxies have Messier in their name. 'One of the earliest catalogues of objects in the sky was made by Charles Messier. Messier was looking for comets in the 1700's, but kept finding objects that looked fuzzy, like comets, but didn't move.' It is good that Charles Messier developed the catalogue and not Crapper for instance :-)
APOD Background
"Explanation: One of the brightest galaxies in planet Earth's sky is similar in size to our Milky Way Galaxy: big, beautiful Messier 81. Also known as NGC 3031 or Bode's galaxy for its 18th century discoverer, this grand spiral can be found toward the northern constellation of Ursa Major, the Great Bear. The sharp, detailed telescopic view reveals M81's bright yellow nucleus, blue spiral arms, pinkish starforming regions, and sweeping cosmic dust lanes. Some dust lanes actually run through the galactic disk (left of center), contrary to other prominent spiral features though. The errant dust lanes may be the lingering result of a close encounter between M81 and the nearby galaxy M82 lurking outside of this frame. M81's faint, dwarf irregular satellite galaxy, Holmberg IX, can be seen just below the large spiral. Scrutiny of variable stars in M81 has yielded a well-determined distance for an external galaxy -- 11.8 million light-years."
AMAZING GRACE IN CHEROKEE - NATIVE AMERICAN
https://www.youtube.com/watch?v=8_qFbNskjCI
Thank you my friend Sgt (Join to see) for mentioning me.
FYI COL Mikel J. Burroughs SMSgt Lawrence McCarter Lt Col John (Jack) Christensen LTC (Join to see) SCPO Morris Ramsey MAJ Dale E. Wilson, Ph.D. Maj Bill Smith, Ph.D. Sgt Albert Castro PO1 William "Chip" Nagel SSG Stephen Rogerson SSG Samuel Kermon SSG Franklin Briant SP5 Geoffrey Vannerson SMSgt David A Asbury A1C Riley Sanders CPT (Join to see) SGM Bill Frazer
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LTC Stephen F.
Blackfire: AIM-SONG + Carlos Nakai: "Song for the Morning Star"
AIM - AMERICAN INDIAN MOVEMENT SONG - this version done by Blackfire ( http://en.wikipedia.org/wiki/Blackfire_%28band%29 ) on their 2007 double CD set [SILEN...
Blackfire: AIM-SONG + Carlos Nakai: "Song for the Morning Star"
https://www.youtube.com/watch?v=kD40vXlXYu0
FYI CSM Bruce Trego CPT (Join to see) SPC Woody Bullard CPL Douglas ChryslerCpl (Join to see) SFC William FarrellTSgt David L. SPC Michael TerrellSSG Jimmy CernichSSG Paul Headlee SPC Michael Duricko, Ph.D CWO3 (Join to see) SSG Michael Noll SPC Randy Zimmerman Sgt Albert Castro Sgt Vance Bonds Cpl Vic Burk PO1 H Gene Lawrence Maj William W. 'Bill' Price PO3 Phyllis Maynard
https://www.youtube.com/watch?v=kD40vXlXYu0
FYI CSM Bruce Trego CPT (Join to see) SPC Woody Bullard CPL Douglas ChryslerCpl (Join to see) SFC William FarrellTSgt David L. SPC Michael TerrellSSG Jimmy CernichSSG Paul Headlee SPC Michael Duricko, Ph.D CWO3 (Join to see) SSG Michael Noll SPC Randy Zimmerman Sgt Albert Castro Sgt Vance Bonds Cpl Vic Burk PO1 H Gene Lawrence Maj William W. 'Bill' Price PO3 Phyllis Maynard
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Good "R.E.D Friday" morning to my good friend and Astronomy Enthusiast Maj William W. 'Bill' Price - thanks for sharing the APOD Titled: "Messier 81" with us all. Bill you have a great day today and enjoy the weekend...
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