Nova Cyg 2014 = PNV J20214234+3103296

[Paolo Berardi]

My last observation, 12.9 aug 2014. Two Miles reference stars for flux calibration, HD 176301 and HD 196544.



4.9 and 12.8 august comparison of the same spectral range.



During large slit operations (long exposure guide camera frame). Target is slightly slit off-axis to avoid contamination by a field star.



Paolo

[Jacques Montier]

Hello,

Nova Cyg of the last night

NovaCyg.png (18.05 KiB) Viewed 8178 times

My first try of measuring flux with Christian Buil first method and 23um/230um slit

NovaCyg_flux.png (18.31 KiB) Viewed 8178 times

Regards,

[Jacques Montier]

Hello all,

Flux comparison of the nova on 20140820, 20140829 and 20140901

novacyg_flux_comparison.png (9.34 KiB) Viewed 8141 times

novacyg_flux_comparison2.png (14.3 KiB) Viewed 8141 times

novacyg_flux_anim.gif (23.84 KiB) Viewed 8141 times

Cheers,

[Francois Teyssier]

Nova Cyg 2014 in nebular phase

NovaCyg2014.png (4.79 KiB) Viewed 8111 times

Note the development of [OIII] 5007, 4959, [OII] and also He I lines 5876, 6876, 7085 ("Helium flash")

François

[Tim Lester]

Nova Cyg for Sept 17 calibrated for flux.
Multiplying by the V Bessel function gives a V magnitude of 12.65, in very good agreement with AAVSO data.

Tim

[Francois Teyssier]

Very fast evolution,
noticelly [OIII] lines

novacyg2014.png (5.47 KiB) Viewed 8020 times

A daily coverage should be usefull for a few days

François

[Francois Teyssier]

Thanks to Joan and Antonio 's spectrum, we can establish that the "[OIII] flash" occured precisely between 20.9 and 21.8 of september

.png (5.37 KiB) Viewed 7989 times

François

[Jacques Montier]

Hello,

Here is the nova spectrum of the last night

novacyg.png (10.1 KiB) Viewed 7987 times

Cheers,

[Christian Buil]

A spectrum taken the 19.9 / 09 / 2014, not perfect but can help for follow fast evolution.
Peculiar spectrum because it is one of the first light of setup presented here

http://www.spectro-aras.com/forum/viewt ... ?f=6&t=917

Christian

[Jacques Montier]

Hello,

Nova Cyg on 25/09

novacyg.png (9.39 KiB) Viewed 7949 times

Regards,