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The M81 Group, the Local Group, and other nearby groups all lie within the Virgo Supercluster ( i. e. the Local Supercluster ).
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M81 and Group
The M81 Group is a group of galaxies in the constellation Ursa Major that includes the well-known galaxies Messier 81 and Messier 82, as well as several other galaxies with high apparent brightnesses.
The table below lists galaxies that have been identified as associated with the M81 Group by I. D. Karachentsev.
poly 528 393 542 392 558 411 525 414 M81 Group
Category: M81 Group
* Messier object M81, a magnitude 8. 5 spiral galaxy in the constellation Ursa Major, also known as Bode's Galaxy, and the first of what is known as the M81 Group of galaxies
Messier 81 is the largest galaxy in the M81 Group, a group of 34 galaxies located in the constellation Ursa Major.
Category: M81 Group
# REDIRECT M81 Group
NGC 2403 is an outlying member of the M81 Group, and is approximately 8 million light-years distant.
Category: M81 Group
M81 and nearby
Forming a striking pair in small telescopes with nearby spiral M81, M82 is being physically affected by its larger neighbor.
Its high level of star formation is due to a close encounter with the nearby spiral M81.
M81 and all
In particular, M81, M82, M52, and M103 make southern-hemisphere Messier marathons difficult because they are all located at a declination of 60 ° north or greater.
Gravitational interactions of M81 with M82 and NGC 3077 have stripped hydrogen gas away from all three galaxies, forming gaseous filamentary structures in the group.
M81 and within
Haplogroups J and E1b1b ( M35, M78, M81 and M34 ) consist of lineages with differential distribution within Middle East, North Africa and Europe.
M81 and .
NGC 2403 is a galaxy in the M81 group of galaxies, located approximately 12 million light-years from Earth with a redshift of 0. 00043.
The prototype example of such a starburst-forming interaction is M82, which experienced a close encounter with the larger M81.
These replaced M81 Woodland uniforms and the LINE combat system, respectively.
M81 is a nearly face-on spiral galaxy 11. 8 million light-years from Earth.
M82 is a galaxy that is interacting gravitationally with M81.
It was armed with the technically advanced but troublesome M81 / M81E1 152mm gun / launcher which fired conventional ammunition and the MGM-51 Shillelagh guided anti-tank missile.
The M81 gun had problems with cracks developing near the breech after repeated firing, a problem that was later tracked to the " key " on the missiles that ran in a slot cut into the barrel.
This was solved by arming the XM551 with a 152 mm gun firing low velocity M81 HEAT rounds.
The missile body consisted of a long tube with fold-out fins at the extreme rear, which was propelled from the new M81 gun with a small charge strapped on the rear.
The M81 / MGM-51 was first installed on the M551 Sheridan.
The Y chromosome p49a, f TaqI Haplotype V, which corresponds to Y haplogroup E1b1b1b ( M81 ) — formerly E3b1b, E3b2 and colloquially referred to as the " Berber marker "— has been found among 68. 9 % of modern Berbers in North Africa and as high as 80 % in one group.
M81 is not found in Sub-Saharan Africa.
Y DNA haplogroup E1b1b ( formerly E3b ) predominates among North African populations ; its E1b1b1b subgroup ( M81 ) is identified especially with Berbers.
Examples of regular spiral galaxies: M31 ( Andromeda Galaxy ), M74, M81, M104 ( Sombrero Galaxy ), M51a ( Whirlpool Galaxy ), NGC 300, NGC 772.
M81 and ).
He is credited with the discovery of Bode's Galaxy ( M81 ).
The burst itself may be triggered by a close encounter with another galaxy ( such as M81 / M82 ), a collision with another galaxy ( such as the Antennae ), or by another process which forces material into the center of the galaxy ( such as a stellar bar ).
M81 ( left ) and Messier 82 | M82 ( right ).
These patterns are overall darker than their respective MARPAT progenitors, modified with different color shades, and addressed the fact that the blue and grey Type I pattern was not meant for a tactical environment ( the Battle Dress Uniform in M81 woodland and Desert Camouflage Uniform are still used for this purpose ).
Group and Local
The Antlia Dwarf, a 14. 8 < sup > m </ sup > dwarf spheroidal galaxy that belongs to our Local Group of galaxies.
Ingrid Fromm, Siemens ' representative to IEEE 802, quickly achieved broader support for Ethernet beyond IEEE by the establishment of a competing Task Group " Local Networks " within the European standards body ECMA TC24.
The Fornax Dwarf galaxy is a dwarf galaxy that is part of the Local Group of galaxies.
In the Local Group, the Milky Way and M31 ( the Andromeda Galaxy ) are gravitationally bound, and currently approaching each other at high speed.
This would put it far outside our Milky Way galaxy, which is about a hundred thousand light years in diameter, and indeed outside the Local Group and even the Virgo Supercluster ; however, at this distance it would still be within the Pisces-Cetus Supercluster Complex.
The Milky Way galaxy is a member of an association named the Local Group, a relatively small group of galaxies that has a diameter of approximately one megaparsec.
The Local Group itself is a part of a cloud-like structure within the Virgo Supercluster, a large, extended structure of groups and clusters of galaxies centered on the Virgo Cluster.
Our own Galaxy, the Milky Way, is contained in the Local Group of more than 40 galaxies.
Every galaxy of sufficient mass in the Local Group has an associated group of globular clusters, and almost every large galaxy surveyed has been found to possess a system of globular clusters.
Theories intended to explain these unusual clouds include materials left over from the formation of our galaxy, or tidally-displaced matter drawn away from other galaxies or members of the Local Group.
A member of the Local Group of galaxies, irregular galaxy Sextans A is 4. 3 million light-years distant.
The Local Group is the group of galaxies that includes Earth's galaxy, the Milky Way.
The galaxies of the Local Group cover a diameter of ( see 1 E + 22 m for distance comparisons ) and have a binary ( dumbbell ) distribution.
* The Triangulum Galaxy, the third largest and only unbarred spiral galaxy in the Local Group, may or may not be a companion to the Andromeda Galaxy.
* The membership of NGC 3109, and its companions Sextans A and the Antlia Dwarf, is uncertain due to their extreme distance from the center of the Local Group.
The term " The Local Group " was introduced by Edwin Hubble in Chapter VI of his book The Realm of the Nebulae ( Hubble 1936, pp. 124 – 151 ).
He also identified IC 10 as a possible Local Group member.
By 2003, the number of known Local Group members has increased from his initial twelve to thirty-six, by way of the discovery of almost two dozen low-luminosity galaxies.
The IC 342 / Maffei Group ( also known as the IC 342 Group or the Maffei 1 Group ) is the nearest group of galaxies to the Local Group.
The approximate center of the group is located at a distance of 3. 6 Mpc, making it one of the nearest groups to the Local Group.
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