Nova Delphi

Images and Spectra from August 17th, 2013

Uploaded 8/18/13
 A new star has appeared in our evening sky - the brand new Nova Delphi, just discovered a few days ago. Located only .7 degrees north of the planetary NGC6905, this currently 4.5 magnitude object appears somewhat yellowish in the eyepiece yet a bluish tint on the images. There are blue and UV wavelengths that this object is emitting, but the eye cannot see. I set up the 12.5 inch last night and in a very brief hole in the monsoon clouds and a half moon in the sky, was able to get some images in 25mph winds and a grating spectra. Here are our results! 


            
 


            
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DSLR image
            with a Hutech modified Canon XTi set for ISO800 and four 12 second
            exposures stacked. The wind made the telescope tube blow around
            so much that only a fraction of the images I took were any good.
            The nova is the bright star seen here above center. The field
            is .75 degrees wide.





            
 


            
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Several
            different images were combined here to make this presentation.
            The background image is the spectra using a 100 lpmm grating
            with the 12.5" and the DMK51 planetary imaging camera. Hydrogen
            and possible iron lines can be seen in this complex spectrum.
            It has been calibrated for instrumentation response with an F
            type star. The inset to the upper right is a black and white
            image, taken with the DMK51 just before I put in the Star Analyzer
            grating showing the field around the nova. Just under the graph
            is the actual image of the spectra set to match the synthetic
            profile in color below it.

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