Nova Cyg 2014 = PNV J20214234+3103296

[Francois Teyssier]

Only one image between clouds
Clearly confirmed as a nova near maximum luminosity showing H alpha with a P cygni profile, and Fe II 42 multiplet^

PNV J20214234+3103296.PNG (21.01 KiB) Viewed 9232 times

François

[Olivier GARDE]

A spectrum taken with C14 at f/d7, LISA spectrograph 35u slit and ATIK 460EX.

[Francois Teyssier]

The light curve of the nova is very unusual.
Brightening after maximum or very long pre-maximum halt

NovaCyg2014_AAVSO_V.PNG (17.02 KiB) Viewed 9160 times

Last spectrum from Christian

_novacyg_2014_20140405_149.png (6.24 KiB) Viewed 9160 times

A daily coverage shoumd be of great interest
The nova is now at mag V = 9.4, so eShel spectra are possible

The ARAS data base for Nova Del 2014 : http://www.astrosurf.com/aras/Aras_Data ... g-2014.htm

François

[Tim Lester]

Hot off the press from last night!
ISIS is reporting a resolution of 1920.

Tim

[Francois Teyssier]

The same at the same moment with LISA (slit 23 mcm and binning 2x2)

_novacyg2014_20140410_130_fteyssier.png (4.39 KiB) Viewed 9111 times

The resolution of Tim's spectrum is noticelly higher.

François

[Francois Teyssier]

Tonight spectrum
Under bad conditions : foggy sky so low SNR
Fast spectral evolution : P cygni profiles disappears and lines widen

_novacyg_20140412_127_fteyssier.png (4.2 KiB) Viewed 9087 times

François

[Jacques Montier]

Hello,

Nova Cyg last night with Alpy 600 R 624

_novacyg_20140414_084_jmontier.png (4.54 KiB) Viewed 9067 times

Cheers,

[Christian Buil]

Also a Alpy 600 spectrum taken the April 14.1 with a Celestron 11 (7 x 300 sec):



Short time change (compare with April 9-10 spectra).

Christian

[Francois Teyssier]

Belles raies dans l'IR, Christian.

La courbe de lumière est particulière avec semble t-il des oscillations.

NovaCyg2014.PNG (16.2 KiB) Viewed 9043 times

Spectre de ce matin

_novadel2014_20140416_119_fteyssier.png (7.71 KiB) Viewed 9043 times

François

[Francois Teyssier]

New spectrum this night

_novadel2014_20140416_119_fteyssier.png (7.71 KiB) Viewed 9023 times

A spectrum by night should be welcome in the data base.
The evolution weak feature at 6828 could be very interesting.

François