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The M109 Group (also known as the NGC 3992 Group or Ursa Major cloud) is a group of galaxies about 55 million light-years away [4] in the constellation Ursa Major. The group is named after the brightest galaxy within the group, the spiral galaxy M109. NGC 3982. NGC 4157, seen by the 32 inch Schulman Foundation telescope on Mt. Lemmon, USA.
M109 has three satellite galaxies (UGC 6923, UGC 6940 and UGC 6969) and possibly more. Detailed hydrogen line observations have been obtained from M109 and its satellites. M109's H I (H one) distribution is regular with a low-level radial extension outside the stellar disc, while in the bar is a central H I hole in the gas distribution ...
The M109 is an American 155 mm turreted self-propelled howitzer, first introduced in the early 1960s to replace the M44. It has been upgraded a number of times, most recently to the M109A7 . The M109 family is the most common Western indirect-fire support weapon of maneuver brigades of armored and mechanized infantry divisions.
NGC 4088 and NGC 4085 are members of the M109 Group, a group of galaxies located in the constellation Ursa Major. This large group contains between 41 and 58 galaxies, including the spiral galaxy M109. [7] [8] [9]
NGC 3982 is a member of the M109 Group, a group of galaxies located in the constellation Ursa Major that may contain over 50 galaxies. The group was named after the brightest galaxy in the group, the spiral galaxy M109. [6] [7] [8] Astronomers are interested in studying this galaxy as it can help in measuring extragalactic distances.
NGC 3953 is a member of the M109 Group, a large group of galaxies located within the constellation Ursa Major that may contain over 50 galaxies. [3] [4] [5] [6]
NGC 3949 is a member of the M109 Group, a group of galaxies located in the constellation Ursa Major that may contain over 50 galaxies. The brightest galaxy in the group is the spiral galaxy M109. [3] [4] [5] One supernova has been observed in NGC 3949: SN 2000db (type II, mag. 14.3) was discovered by Masakatsu Aoki on 6 August 2000. [6] [7]
NGC 3877 is a member of the M109 Group, a group of galaxies located in the constellation Ursa Major that may contain over 50 galaxies. The brightest galaxy in the group is the spiral galaxy M109 . [ 7 ] [ 8 ] [ 9 ]