 Random files - User galleries |
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Centaurusdone1.jpgCentaurus A.449 viewsThe Centaurus A/M83 Group is a complex group of galaxies in the constellations Hydra, Centaurus, and Virgo. The group may be roughly divided into two subgroups. The Cen A Subgroup, at a distance of 11.9 Mly (3.66 Mpc), is centered around Centaurus A, a nearby radio galaxy.[3] The M83 Subgroup, at a distance of 14.9 Mly (4.56 Mpc), is centered around the Messier 83 (M83), a face-on spiral galaxy.[3]
This group is sometimes identified as one group[4][5] and sometimes identified as two groups.[6] Hence, some references will refer to two objects named the Centaurus A Group and the M83 Group. However, the galaxies around Centaurus A and the galaxies around M83 are physically close to each other, and both subgroups appear not to be moving relative to each other.[3]
The Centaurus A/M83 Group is part of the Virgo Supercluster, the local supercluster of which the Local Group is an outlying member.Martin
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goodbugcrop.jpgBug nebula.408 viewsNGC 6302 (also called the Bug Nebula or Butterfly Nebula), is a bipolar planetary nebula in the constellation Scorpius. It is one of the most complex[clarification needed] planetary nebulae observed. The spectrum of NGC 6302 shows its central star is one of the hottest objects in the galaxy, with a surface temperature in excess of 200,000 K, implying that the star from which it formed must have been very large.
The central star has never been observed and is surrounded by a particularly dense equatorial disc composed of gas and dust. This dense disc is postulated to have caused the star's outflows to form a bipolar structure (Gurzadyan 1997), similar to an hour-glass. This bipolar structure shows many interesting features seen in planetary nebulae such as ionization walls, knots and sharp edges to the lobes.Martin
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Watch_out_Dazza.jpg493 viewsCould not resist this one :)Martin
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NGC4945.jpgNGC4945.1084 viewsNGC4945 with the Supernova.Martin
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test.jpg10 Minutes guiding test with the G11 Gemini2.583 viewsMartin
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 Last additions - User galleries |
rosette_done_ha2Mb.jpgRosetta in HA.512 viewsStill lots of noise in the surroundings so will need more exposures.MartinDec 28, 2014
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Eta_Carinae_done_ha2Mb.jpgEta Carinae with the EQ8 mount.823 viewsMartinDec 28, 2014
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Eta_Carina.jpgEta Carinae543 viewstest image with OAG.MartinFeb 12, 2014
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Lagoondone2Mb.jpgLagoon nebula680 viewsDone with the ED100 and Hutech FR/FF.MartinMay 15, 2013
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triffid_done2MB.jpgTriffid nebula747 viewsDone with the ED100 and Hutech FR/FF.MartinMay 15, 2013
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testing.jpgtestimage984 views2X30Seconds at ISO1600MartinMay 12, 2012
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Sombrerocropdone.jpgSombrero galaxy1561 viewsThe Sombrero Galaxy (also known as M104 or NGC 4594) is an unbarred spiral galaxy in the constellation Virgo located 28 million light years from Earth. It has a bright nucleus, an unusually large central bulge, and a prominent dust lane in its inclined disk. The dark dust lane and the bulge give this galaxy the appearance of a sombrero. Astronomers initially thought that the halo was small and light, indicative of a spiral galaxy. But Spitzer found that halo around the Sombrero Galaxy is larger and more massive than previously thought, indicative of a giant elliptical galaxy. [5] The galaxy has an apparent magnitude of +9.0, making it easily visible with amateur telescopes. The large bulge, the central supermassive black hole, and the dust lane all attract the attention of professional astronomers.MartinMay 11, 2012
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NGC4945.jpgNGC4945.1084 viewsNGC4945 with the Supernova.MartinApr 11, 2012
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