View Full Version here: : Another Nova in Sagittarius
19-07-2012, 11:40 PM
On 16th July 2012 CBAT announced a possible nova candidate called PNV J18193700-1907400 (http://www.cbat.eps.harvard.edu/unconf/followups/J18193700-1907400.html)
It had been discovered by T. Kojima, Gunma-ken, Japan, using Canon Digital Camera. Photometry reported on 18th July gave a V mag of 12.71
I took a low resolution (R=700) spectra of this nova candidate on 19th July 2012 from Armidale NSW using a LISA spectrograph on a 200mm diameter telescope.
20-07-2012, 02:10 AM
Excellent results for a 12 mag object.
Certainly has all the hallmarks of a Nova.
20-07-2012, 11:46 AM
Great job Terry - you are certainly rolling out these spectra.
I had seen a report recently of a mag 8 nova in Sagittarius - is this a different one?
20-07-2012, 10:59 PM
This is a different nova. This one has now been designated as Nova Sagittarii 2012 No 5
The one at mag 8 is Nova Sag 2012 No 4.
I have also taken a spectra of it and it is attached. I was going to take a follow up one tonight but cloud has intervened again. Because it is much brighter I have a much better S/N. There are many emission lines of Fe etc.
05-08-2012, 09:52 PM
More data of this nova now with an animation of it's evolution. See
12-08-2012, 10:10 AM
I think with all the recent Nova and the excellent results achieved by amateurs, we need to re-group and get some spectroscopic excitement back into membership!
Please remember that even a humble grating (Star Analyser/ Rainbow Optics) will show the differences between types of Nova, and then there is always some of the brightest Wolf-Rayet visible in the Southern Hemisphere.
So many objects, so many spectra, it's a ongoing project.....
Onwards and Upwards.
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