... Submitted by Al Takeda on 07/13/2012 10:35:53 . Sunspot 1515 in Hydrogen Alpha . ... with John Blomquist’s double-stacked hydrogen alpha filter system on a customized ...
... Submitted by Al Takeda on 05/14/2014 15:05:01 . Jellyfish Nebula (IC443) – Narrowband Hydrogen-alpha . ... adapter for the STL6303E CCD camera, I imaged the Jellyfish supernova remnant using a 5nm narrowband Hydrogen-alpha filter ...
... Events . Gallery . Members . A Mosaic of the Hydrogen Sky . Dennis DiCicco . Thursday, Sep 13, 2012 at 8:00 PM . ... Way’s large-scale nebulous structure with deep hydrogen-alpha exposures made from his backyard observatory in Boston’s western ...
... The Swan Nebula (also called the Omega Nebula, Checkmark Nebula, Horseshoe Nebula and the Lobster Nebula (in the southern hemisphere) is a star forming region whose hydrogen gas is being excited by hot young stars. ...
... The cone shape is a dark absorption nebula of cold molecular hydrogen and dust in front of an emission nebula. ... Hydrogen-alpha filter (5nm) Total= 60 minutes. 10 images, 6-minute unbinned subframes. ...
... This large circular H II (partially ionized hydrogen gas) region is a combination of NGC 2237, NGC 2238, NGC 2239, NGC 2246 and the central star cluster of NGC 2244 (Caldwell 50).This star forming region is also known as Caldwell 49 and is located in the ...