 Random files - User galleries |
NGC4945_supernova.jpgNGC4945613 viewsNGC4945 with the supernova 2011ja (January 01-2012).Martin
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snake-nebula.jpgSnake nebula.546 viewsThe Snake Nebula (also known as Barnard 72) is a dark nebula in the Ophiuchus constellation. It is a small but readily apparent S-shaped dust lane that snakes out in front of the Milky Way star clouds from the north-north-west edge of the bowl of the Pipe Nebula. Its thickness runs between 2′ and 3′ and runs around 6′ in the north-west / south-east orientation. A good view in a 4" to 6" telescope requires clear dark skies.
It is part of the much larger Dark Horse Nebula.Martin
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rosettecropfinal.jpgRosette nebula.510 viewsThe cluster and nebula lie at a distance of some 5,200 light years from Earth (although estimates of the distance vary considerably) and measure roughly 130 light years in diameter. The radiation from the young stars excite the atoms in the nebula, causing them to emit radiation themselves producing the emission nebula we see. The mass of the nebula is estimated to be around 10,000 solar masses.
It is believed that stellar winds from a group of O and B stars are exerting pressure on interstellar clouds to cause compression, followed by star formation in the nebula. This star formation is currently still ongoing.
A survey of the nebula with the Chandra X-ray Observatory in 2001 has revealed the presence of very hot, young stars at the core of the Rosette Nebula. These stars have heated the surrounding gas to a temperature in the order of 6 million kelvins causing them to emit copious amounts of X-rays.Martin
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Shane_Gilbert2.jpg435 viewsMartin
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Guess_who.jpg428 viewsGuess who?Martin
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NGC253done2Meg.jpgNGC253497 viewsG11 guiding test on 24-08-2011 with latest August firmware.
10x200Sec RGB and 25x300Sec L on a ED80 and QHY9.
Uncropped.Martin
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1123_and_1124.jpgAr1123 and 1124.533 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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