TCP J04291884+4354232 possible nova mag 10.2

[Paolo Berardi]

Hi all, great spectra!

My contribution using Lires III and 600 l/mm grating.

H-beta and Fe II region



H-alpha, Fe II and neutral helium



Neutral oxygen and helium, maybe C II
(W25 filter to avoid 2nd order contamination)



Paolo

[etienne bertrand]

Comme Olivier avec l'Alpy j'ai un spectre un peu bossu qui monte du bleu vers 5800A puis après qui descend.

Olivier, tu montres des évolutions de la raie Ha extrêmement rapides, ça évolue aussi vite ?

[umberto sollecchia]

Salut à tous, je place ma contribution à l'observation de cette nuit 27/11/2020.
Umberto Sollecchia

novaper2020_20201127_885_Umberto Sollecchia.png (41.28 KiB) Viewed 6618 times

novaper2020_20201127_885_VR_Umberto Sollecchia.png (22.48 KiB) Viewed 6618 times

[Francois Teyssier]

Impressive change in one day. See also Olivier Garde's graphs.
The red component (linked to the absortion - 850 km/s) disappear

novaper2020_Ha.png (20.93 KiB) Viewed 6594 times

EBE = Etienne Bertrand



Database updated: http://www.astrosurf.com/aras/Aras_Data ... er2020.htm

Bonne continuation!

[Olivier GARDE]

Second night on this Nova with a bad weather (feezing fog).

Here's the evolution of the balmer lines in one day

[Robin Leadbeater]

Here's the evolution of the balmer lines in one day

A spectrum taken a few hours later (LHIRES1200 R~5600) confirms the continuing evolution (The hump on the red edge of H alpha is no longer clear)

novaper2020_20201128_051_Leadbeater.png (20.93 KiB) Viewed 6581 times

Robin

[Stephane Charbonnel]

Hello,

My little contribution ...

Shifted field :

Champ décalé

Nova_Per_Champ.jpg (42.3 KiB) Viewed 6575 times

Field with Nova in the hole :

Champ spectral

Nova_Per_Champ_Spectral.jpg (102.03 KiB) Viewed 6575 times

The result :

Spectre

ResultatAlpha.png (57.52 KiB) Viewed 6575 times

Stephane

[Francois Teyssier]

Steve Shore recalls that the near IR is very also important.
"somehow it's really essential that some spectra cover 7000-9000A (O I, Ca II, Paschen)"
Lhires III 600 l/mm
UVEX, LISA IR

Of course visual range remains very useful too!

Do not hesitate to share your observing session (in real time) in order to optimize the acquisitions between the observers.
http://spectro-aras.com/forum/viewtopic.php?f=12&t=2675

François

[etienne bertrand]

Ce soir le spectre a encore changé !! Incroyable cette évolution aussi rapide !
(je suis sur la cible avec l'Alpy, je vous partage le 1er spectre)

[Francois Teyssier]

Trés bon, Etienne,
Oui, les absorptions augmentent, on doit être proche du maximum.
Un bonheur cette nova dans l'hémisphère nord (surtout par le stemps qui courrent ...)

François