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M45.jpg
M45.jpgM45.316 viewsIn astronomy, the Pleiades, or Seven Sisters (Messier object 45), is an open star cluster containing middle-aged hot B-type stars located in the constellation of Taurus. It is among the nearest star clusters to Earth and is the cluster most obvious to the naked eye in the night sky. Pleiades has several meanings in different cultures and traditions.

The cluster is dominated by hot blue and extremely luminous stars that have formed within the last 100 million years. Dust that forms a faint reflection nebulosity around the brightest stars was thought at first to be left over from the formation of the cluster (hence the alternate name Maia Nebula after the star Maia), but is now known to be an unrelated dust cloud in the interstellar medium that the stars are currently passing through. Astronomers estimate that the cluster will survive for about another 250 million years, after which it will disperse due to gravitational interactions with its galactic neighborhood.
Martin
horsephotobucket.jpg
horsephotobucket.jpgHorsehead nebula.338 viewsThe Horsehead Nebula (also known as Barnard 33 in bright nebula IC 434) is a dark nebula in the constellation Orion. The nebula is located just below (to the south of) Alnitak, the star farthest left on Orion's Belt, and is part of the much larger Orion Molecular Cloud Complex. The Horsehead Nebula is approximately 1500 light years from Earth. It is one of the most identifiable nebulae because of the shape of its swirling cloud of dark dust and gases, which is similar to that of a horse's head when viewed from Earth. The shape was first noticed in 1888 by Williamina Fleming on photographic plate B2312 taken at the Harvard College Observatory.

The red glow originates from hydrogen gas predominantly behind the nebula, ionized by the nearby bright star Sigma Orionis. The darkness of the Horsehead is caused mostly by thick dust, although the lower part of the Horsehead's neck casts a shadow to the left. Streams of gas leaving the nebula are funneled by a strong magnetic field. Bright spots in the Horsehead Nebula's base are young stars just in the process of forming.
Martin
Dougs_G11.jpg
Dougs_G11.jpg221 viewsMartin
253redone2Gig.jpg
253redone2Gig.jpgNGC253 Redone243 viewsA repro (last time, i promise).Martin
M42_570Kb.jpg
M42_570Kb.jpgM42.309 viewsQHY9 mono on ED80 and guided with a finderscope on a G11 with Gemini2
5 Minute LRGB with the core blended in with 30 second LRGB.
Martin
Sombrerocropdone.jpg
Sombrerocropdone.jpgSombrero galaxy1152 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.Martin
Observing_field.jpg
Observing_field.jpg206 viewsMartin
Morning.jpg
Morning.jpg216 viewsMartin

Last additions - User galleries
rosette_done_ha2Mb.jpg
rosette_done_ha2Mb.jpgRosetta in HA.230 viewsStill lots of noise in the surroundings so will need more exposures.MartinDec 28, 2014
Eta_Carinae_done_ha2Mb.jpg
Eta_Carinae_done_ha2Mb.jpgEta Carinae with the EQ8 mount.502 viewsMartinDec 28, 2014
Eta_Carina.jpg
Eta_Carina.jpgEta Carinae268 viewstest image with OAG.MartinFeb 12, 2014
Lagoondone2Mb.jpg
Lagoondone2Mb.jpgLagoon nebula392 viewsDone with the ED100 and Hutech FR/FF.MartinMay 15, 2013
triffid_done2MB.jpg
triffid_done2MB.jpgTriffid nebula452 viewsDone with the ED100 and Hutech FR/FF.MartinMay 15, 2013
testing.jpg
testing.jpgtestimage622 views2X30Seconds at ISO1600MartinMay 12, 2012
Sombrerocropdone.jpg
Sombrerocropdone.jpgSombrero galaxy1152 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
NGC4945.jpg
NGC4945.jpgNGC4945.680 viewsNGC4945 with the Supernova.MartinApr 11, 2012