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Galaxies

Galaxies Click the icon to view galaxies of the Messier catalog >>Links; >>References; >>Galaxy Clusters The icon shows M51, the Whirlpool Galaxy. Spiral Spiral galaxies usually consist of two major components: A flat, large disk which often contains a lot of interstellar matter (visible sometimes as reddish emission nebulae, or as dark dust clouds) and …

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Messier Objects

Messier Object Data Type: 1=Open Cluster, 2=Globular Cluster, 3=Planetary Nebula, 4=Diffuse Nebula, 5=Spiral Galaxy, 6=Elliptical Galaxy, 7=Irregular Galaxy, 8=Lenticular (S0) Galaxy, 9=Supernova Remnant, A=System of 4 stars or Asterism, B=Milky Way Patch, C=Binary star. ra: right ascension in hours minutes.decimal seconds. Epoch 2000.0 dec: declination in degrees minutes. Epoch 2000.0 B: apparent visual magnitude D: …

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Messier Objects

Messier Objects with Data Type: 1=Open Cluster, 2=Globular Cluster, 3=Planetary Nebula, 4=Diffuse Nebula, 5=Spiral Galaxy, 6=Elliptical Galaxy, 7=Irregular Galaxy, 8=Lenticular (S0) Galaxy, 9=Supernova Remnant, A=System of 4 stars or Asterism, B=Milky Way Patch, C=Binary star. ra: right ascension in hours minutes.decimal seconds. Epoch is 2000.0 dec: declination in degrees minutes. Epoch is 2000.0 B: apparent …

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Messier Objects by Apparent Visual Magnitude

Messier Object Data, sorted by Apparent Visual Magnitude Here we present the Messier catalog in the order of decreasing visual magnitude; this should roughly coincide with difficulty. Note, many of the magnitudes are not very well determined, so this order should be taken with the appropriate care. Type: 1=Open Cluster, 2=Globular Cluster, 3=Planetary Nebula, 4=Diffuse …

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Messier Objects by Declination

Messier Object Data, sorted by Declination This ordering scheme was recently introduced by Patrick Moore in his Caldwell Catalog. Certainly, we can present the Messier catalog in the same order. Type: 1=Open Cluster, 2=Globular Cluster, 3=Planetary Nebula, 4=Diffuse Nebula, 5=Spiral Galaxy, 6=Elliptical Galaxy, 7=Irregular Galaxy, 8=Lenticular (S0) Galaxy, 9=Supernova Remnant, A=System of 4 stars or …

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