Messier 109: Difference between revisions
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{{Galaxy <!-- put name or coordinates into the following URL --> |
{{Galaxy <!-- put name or coordinates into the following URL --> |
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| name = [http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=m109 Messier 109] |
| name = [http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=m109 Messier 109] |
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== History and naming == |
== History and naming == |
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Messier 109 was discovered by [[Pierre Méchain]] in [[1781]], this makes M109 sometimes called a Méchain object |
Messier 109 was discovered by [[Pierre Méchain]] in [[1781]], this makes M109 sometimes called a Méchain object.<ref>{{cite web |
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|url=http://www.seds.org/Messier/xtra/history/mcathist.html|title=History of the Messier Catalog|first=Hartmut|last=Frommert|work='''SEDS'''|year=1998|accessdate=7 February|accessyear=1998}}</ref> In [[1783]] [[Charles Messier]] cateloged NGC 3992 as his 109th [[Messier object|object]]. |
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Between the [[1920]]s through the [[1950]]s, it was considered that Messier objects over 103 are not official, but later years the additions became pretty widely accepted. [[David Levy]] mentions the modern 110 object catalog while [[Sir Patrick Moore]] gave the original to 104 but has M105-M109 listed as addendum. But by the late 1970s the modern 110 objects are commonly used among astronomers ans still are today. |
Between the [[1920]]s through the [[1950]]s, it was considered that Messier objects over 103 are not official, but later years the additions became pretty widely accepted. [[David Levy]] mentions the modern 110 object catalog while [[Sir Patrick Moore]] gave the original to 104 but has M105-M109 listed as addendum. But by the late 1970s the modern 110 objects are commonly used among astronomers ans still are today. |
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In [[2006]], Devon J. Moore suggested the name the '''Vacuum Cleaner Galaxy''' to a website that has the Common Names for Messier Objects along with a list of proposition for future names. This proposition was put on the website and possibly suggested to the [[IAU]] and may be the common name for M109 in the future. The name came from the fact that M109 is a cyclonic galaxy (along with the [[Whirlpool Galaxy]]) with a bar at the center. The bar gives a [[Modern architecture|modern]] look to the galaxy, so the name was givin to the obvious fact of a modern cyclonic [[vacuum cleaner] |
In [[2006]], Devon J. Moore suggested the name the '''Vacuum Cleaner Galaxy''' to a website that has the Common Names for Messier Objects along with a list of proposition for future names. This proposition was put on the website and possibly suggested to the [[IAU]] and may be the common name for M109 in the future. The name came from the fact that M109 is a cyclonic galaxy (along with the [[Whirlpool Galaxy]]) with a bar at the center. The bar gives a [[Modern architecture|modern]] look to the galaxy, so the name was givin to the obvious fact of a modern cyclonic [[vacuum cleaner]].<ref>{{cite web |
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|url=http://www.seds.org/messier/m-names.html|title=Common Names for Messier Objects|first=Hartmut|last=Frommert|work='''SEDS'''|year=2006|accessdate=15 July|accessyear=2006}}</ref> |
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== General information == |
== General information == |
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In [[March]] of [[1956]], [[supernova 1956A]] was obsurved in M109. SN 1956A was a type Ia [[supernova]] in the southeast part of the galaxy. Glowing at a +12.8 to +12.3 at it's maximum. SN 1956A was the only supernova observed in M109 after it's discovery. |
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In [[March 1956]], [[supernova 1956A]] was obsurved |
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M109 not the most famous, but is a good example of a [[barred spiral galaxy]]. [[As of 2005]] the [[Milky Way Galaxy]] is thought to be a barred spiral galaxy. Because of this big news, M109 is one of the top ten barred spiral galaxies in which astronomers imagine our galaxy would look like. |
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M109 has three [[satellite galaxies]] ([[UGC 6923]], [[UGC 6940]] and [[UGC 6969]]) and possible might have more. Detailed [[Hydrogen line]] observations have been obtained from M109 and it's satellites. M109's the [[H I region|H I distribution]] is regular with a low level radial extension outside the stellar disc, while at exactly the region of the bar, there is a central [[H I hole]] in the gas distribution. Possibly the gas has been transported inwards by the bar because of the emptyness of the hole no large accretion events can have happened in the recent past.<ref>{{cite web |
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|url=http://arxiv.org/abs/astro-ph/0204335|title=Dark and luminous matter in the NGC 3992 group of galaxies|first=Roelof|last=Bottema|work='''Astrophysics'''|year=2002|accessdate=19 April|accessyear=2002}}</ref> |
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| ⚫ | |||
[[SN 1956A]]) was observed in Messier 109 which was the first and only supernova to be observed in Messier 109. |
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Being a barred spiral galaxy, M109 resembles the Milky Way in appearance. |
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Located in the |
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<div style="clear: both"></div> |
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| ⚫ | |||
* [[New General Catalogue]] (NGC) |
* [[New General Catalogue]] (NGC) |
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* [[Spiral Galaxy M108]] |
* [[Spiral Galaxy M108]] |
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* [[Milky Way]] |
* [[Milky Way]] |
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* [[NGC 1300]] |
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<br> |
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== References == |
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<references/> |
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==External links== |
==External links== |
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* [http://www.seds.org/messier/m/m109.html '''SEDS''': Spiral Galaxy M109] |
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*{{cite web|url=http://www.seds.org/messier/m/m109.html|title=Messier 109|work='''SEDS'''|accessdate=11 August|accessyear=2005}} |
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* [http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=messier+109&NbIdent=1&Radius=10&Radius.unit=arcmin&CooFrame=FK5&CooEpoch=2000&CooEqui=2000&output.max=all&o.catall=on&output.mesdisp=N&Bibyear1=1983&Bibyear2=2006&Frame1=FK5&Frame2=FK4&Frame3=G&Equi1=2000.0&Equi2=1950.0&Equi3=2000.0&Epoch1=2000.0&Epoch2=1950.0&Epoch3=2000.0 '''SIMBAD''': M 109 -- Galaxy ] |
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*{{cite web|url=http://arxiv.org/abs/astro-ph/0204335|title=Dark and luminous matter in the NGC 3992 group of galaxies|work='''Astrophysics'''|accessdate=19 April|accessyear=2002}} |
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<br> |
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*{{cite web|url=http://www.edpsciences-usa.org/articles/aa/abs/2002/24/aah3039/aah3039.html|title=Dark and luminous matter in the NGC 3992 group of galaxies|work='''ESO'''|accessdate=8 April|accessyear=2002}} |
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[[Category:Messier objects|109]] |
[[Category:Messier objects|109]] |
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[[Category:NGC objects|3992]] |
[[Category:NGC objects|3992]] |
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[[Category:Barred spiral galaxies|M109]] |
[[Category:Barred spiral galaxies|M109]] |
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[[Category:Ursa Major North group]] |
[[Category:Ursa Major North group]] |
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{{galaxy-stub}} |
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[[cs:Messier 109]] |
[[cs:Messier 109]] |
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Revision as of 16:03, 21 July 2006
Messier 109 (also known as NGC 3992 or M109 for short; suggested name the Vacuum Cleaner Galaxy) is a barred spiral galaxy approximetaly 41 million light-years away in the constellation Ursa Major. M109 is the dominant galaxy in the Ursa Major North group of galaxies along with Messier 108. M109 can be seen southeast of the star Phekda (γ UMa).
History and naming
Messier 109 was discovered by Pierre Méchain in 1781, this makes M109 sometimes called a Méchain object.[1] In 1783 Charles Messier cateloged NGC 3992 as his 109th object.
Between the 1920s through the 1950s, it was considered that Messier objects over 103 are not official, but later years the additions became pretty widely accepted. David Levy mentions the modern 110 object catalog while Sir Patrick Moore gave the original to 104 but has M105-M109 listed as addendum. But by the late 1970s the modern 110 objects are commonly used among astronomers ans still are today.
In 2006, Devon J. Moore suggested the name the Vacuum Cleaner Galaxy to a website that has the Common Names for Messier Objects along with a list of proposition for future names. This proposition was put on the website and possibly suggested to the IAU and may be the common name for M109 in the future. The name came from the fact that M109 is a cyclonic galaxy (along with the Whirlpool Galaxy) with a bar at the center. The bar gives a modern look to the galaxy, so the name was givin to the obvious fact of a modern cyclonic vacuum cleaner.[2]
General information
In March of 1956, supernova 1956A was obsurved in M109. SN 1956A was a type Ia supernova in the southeast part of the galaxy. Glowing at a +12.8 to +12.3 at it's maximum. SN 1956A was the only supernova observed in M109 after it's discovery.
M109 not the most famous, but is a good example of a barred spiral galaxy. As of 2005 the Milky Way Galaxy is thought to be a barred spiral galaxy. Because of this big news, M109 is one of the top ten barred spiral galaxies in which astronomers imagine our galaxy would look like.
M109 has three satellite galaxies (UGC 6923, UGC 6940 and UGC 6969) and possible might have more. Detailed Hydrogen line observations have been obtained from M109 and it's satellites. M109's the H I distribution is regular with a low level radial extension outside the stellar disc, while at exactly the region of the bar, there is a central H I hole in the gas distribution. Possibly the gas has been transported inwards by the bar because of the emptyness of the hole no large accretion events can have happened in the recent past.[3]
See also
References
- ^ Frommert, Hartmut (1998). "History of the Messier Catalog". SEDS. Retrieved 7 February.
{{cite web}}: Check date values in:|accessdate=(help); Italic or bold markup not allowed in:|work=(help); Unknown parameter|accessyear=ignored (|access-date=suggested) (help) - ^ Frommert, Hartmut (2006). "Common Names for Messier Objects". SEDS. Retrieved 15 July.
{{cite web}}: Check date values in:|accessdate=(help); Italic or bold markup not allowed in:|work=(help); Unknown parameter|accessyear=ignored (|access-date=suggested) (help) - ^ Bottema, Roelof (2002). "Dark and luminous matter in the NGC 3992 group of galaxies". Astrophysics. Retrieved 19 April.
{{cite web}}: Check date values in:|accessdate=(help); Italic or bold markup not allowed in:|work=(help); Unknown parameter|accessyear=ignored (|access-date=suggested) (help)
External links
- "Messier 109". SEDS. Retrieved 11 August.
{{cite web}}: Check date values in:|accessdate=(help); Italic or bold markup not allowed in:|work=(help); Unknown parameter|accessyear=ignored (|access-date=suggested) (help) - "Dark and luminous matter in the NGC 3992 group of galaxies". Astrophysics. Retrieved 19 April.
{{cite web}}: Check date values in:|accessdate=(help); Italic or bold markup not allowed in:|work=(help); Unknown parameter|accessyear=ignored (|access-date=suggested) (help) - "Dark and luminous matter in the NGC 3992 group of galaxies". ESO. Retrieved 8 April.
{{cite web}}: Check date values in:|accessdate=(help); Italic or bold markup not allowed in:|work=(help); Unknown parameter|accessyear=ignored (|access-date=suggested) (help)