wpo - Nova Cygni 2006 = V2362 Cygni

  Nova Aquila'01  my spectro page   Nova Mon 02 [V838 Mon]   Nova Scuti 03    AAVSO Nova Cygni 2006 page

2006 Apr 4:  AAVSO reports nova discovery by Hideo Nishimura of Kakegawa, Japan  on photo at m10.5 on T-Max 400 film (IAU Circular 8697) at position [R.Miles-BAA] R.A. (2000): 21h 11m 32.34s Decl. (2000): +44o 48' 03.9" .

nova cyg06 = V2362Cyg field image
The nova spectrum rapidly evolves over 6 days shows that at discovery a nova's reality [via emission lines etc] is somewhat uncertain. The comparison spectrum with adjacent high red index field star marked *.
2006 Apr 12:  in a brightening dawn Cygnus high in NE and clear of earth's absorbing atmosphere reveals classic emission lines between Ha and Hb.prof Apr 12

2006 Apr 10: 48 hour gap through cloudy skies reveals marked development of nova's spectrum with H-alpha now dominating.  Image taken in late dusk under increasing haze curtained observations - nova ~6o above the northern London horizon.

2006 Apr 7: Marginally clearer on northern horizon enables capture of field image - the spectrum has markedly evolved in the last 24 hours to a classic nova profile.  Mv9.7 star TYC 3181-01159-1 a few arcminutes Nf records reddish [colour index 1.42] via Canon Rebel which nova may mimic as H-alpha intensity increases.


2006 Apr 6:  Nova at dusk lies on my northern meridian <7o above the London metroplis horizon and murk!  No stars visible in finder except Deneb used as offset.   Spectrum indicates nova has weak emission lines in the early stages of development - see Nova Scuti 03 and V838 Mon links above.  Nova east of NGC 7000=North America Neb.
ncyg spectrum 2006 Apr 6

nova chart

A Rainbow Optics transmission grating placed immediately before the CCD produces a second image or spectrogram dispersed to one side of the star image according to wavelength from 3700A-9500A with a resolution ~50A.  This raw image screen capture shows a bright point of Ha [6563A] that is always present in a nova at outburst. The intensity profile through the spectrogram, via SX camera controlling software, confirms this.  The intensity profile is software enhanced to reveal more detail.
text & images copyright - Maurice Gavin - WPO - 2006