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| | Encyclopedia: M51 |
 | | Sometimes M51 is used to refer to the pair of galaxies, in which case the individual galaxies may be referred to as M51A (5194) and M51B (5195). | | | The spiral galactic structure was first observed in this galaxy, which is the dominant member of the M51 group of galaxies. | | | The galaxy is less than 37 million light years away from Earth — some measurements put the distance at only 15 million. |
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http://www.nationmaster.com/encyclopedia/M51
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| | Messier Object 51 |
| | The companion galaxy, NGC 5195, has also produced one supernova, 1945A, which occurred on April 8, 1945, and reached 14th magnitude. | | | According to our present understanding, the pronounced spiral structure is a result of M51's current encounter with its neighbor, NGC 5195 (the fainter one in Messier's description). | | | The two "atmospheres" touch each other, the one is even fainter than the other.' NGC 5195 was assigned an own number by William Herschel : H I.186. |
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http://www.seds.org/messier/m/m051.html
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| | Chandra :: Photo Album :: Whirlpool Galaxy (M51) :: 02 Jul 02 |
| | Other scientists involved in the research were Yuichi Terashima of the University of Maryland, and Stefan Immler of the University of Massachusetts, Amherst. | | | This site was developed with funding from NASA under Contract NAS8-39073. | | | Andrew Wilson of the University of Maryland, in College Park, was the principal investigator for the Chandra observations of M51. |
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http://chandra.harvard.edu/photo/2002/0158/index.html
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| | Messier M51 |
| | M51 image taken with Orion ShortTube 80 mm refractor telescope and Cookbook CB245 CCD Camera. | | | Detailed discription of M51 in SEDS Messier database | | | Observing Location: At home on the drive way |
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http://www.stargazing.net/david/fastar/m51.html
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| | The M51 group of galaxies |
| | The following table lists some data for the galaxies in the M51 group: | | | This group is rather loose and clearly dominated by the two Messier galaxies. | | | Galaxy Name II RA (2000.0) Dec type m_v dim RV |
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http://www.seds.org/messier/more/m051gr.html
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| | [No title] |
| | This spiral structure is clearly seen in this blue image. | | | M51 is another very High Surface Brightness galaxy. | | | M51 is the host galaxy for SN 1994 I. |
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http://zebu.uoregon.edu/messier/m51.txt
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| | Initial ISO results: M51 |
| | Other papers concerning ISO observations of this source have been published; | | | ISOCAM map of the Whirlpool Galaxy (M51) at a wavelength of 15 microns | | | The nearby Whirlpool Galaxy, M51, was ISO's "first light" target on 28 November, when the telescope was opened to the sky. |
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http://www.iso.vilspa.esa.es/science/galleries/nor/M51.html
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| | APOD: 2000 July 24 - M51: The Whirlpool Galaxy |
| | Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. | | | light years distant and fully 65 thousand light years across, M51, also known as NGC 5194, is one of the brightest and most | | | The smaller galaxy appearing here below and to the left is well behind M 51, as can be inferred by the dust in a foreground spiral arm blocking light from this smaller galaxy. |
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http://antwrp.gsfc.nasa.gov/apod/ap000724.html
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| | M51 NGC 5194-5 |
| | M51 images at SEDS for comparisons ( until we grab one): | | | Benoit Schillings and I finally got the AO prototype into operation | | | It has also been unsharp masked and stretched |
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http://www.frazmtn.com/~bwallis/m51_ao.html
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| | Untitled Document |
| | Veil, M101, NGC 6946, M51, M81-M82, Virgo Cluster, NGC 891, |
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http://www.robgendlerastropics.com/publications.html
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