New transcient, perhaps a nova

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Re: New transcient, perhaps a nova

Postby Joan Guarro Flo » Thu Oct 12, 2017 12:20 pm

;) A bit of cinema. JG.
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Re: New transcient, perhaps a nova

Postby Francois Teyssier » Thu Oct 12, 2017 5:48 pm

Fantastic Joan!
There will be a great publication on this peculiar nova.

All the best,

François
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Re: New transcient, perhaps a nova

Postby umberto sollecchia » Thu Oct 12, 2017 5:52 pm

Félicitations Joan! Quel beau film, un câlin.
Umberto
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Re: New transcient, perhaps a nova

Postby umberto sollecchia » Fri Oct 13, 2017 1:59 pm

Bonne journée à tous, placez le profil de la nouvelle observé le 12-10-2017 une comparaison avec ce qui précède.Umberto

asassn-17hx_20171012_734_Umberto Sollecchia.png
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asassn-17hx - Comparison - Umberto Sollecchia.png
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Re: New transcient, perhaps a nova

Postby umberto sollecchia » Sat Oct 21, 2017 9:39 pm

Bonsoir du tout, voici une comparaison des profils des trois derniers jours.
umberto

asassn - Comparison - Umberto Sollecchia.png
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Re: New transcient, perhaps a nova

Postby Joan Guarro Flo » Mon Oct 23, 2017 3:26 pm

Hi,
As it can also be seen with the graph of Umberto. It is very possible that there is a reverse relationship, between, the increase in brightness of the Nova and the decrease in the intensity of the Halpha.
Joan.
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Re: New transcient, perhaps a nova

Postby umberto sollecchia » Tue Oct 24, 2017 6:16 pm

Salut, juste Joan, même la nuit dernière 23-10-2017, avec de nombreux problèmes météorologiques, j'ai réussi à faire un spectre à la nova.Voici son profil spectral et une comparaison avec 21-10-2017.
Salutations -
Umberto

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asassn-17hx - Comparison - Umberto Sollecchia.png
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Re: New transcient, perhaps a nova

Postby Francisco Campos » Tue Oct 24, 2017 8:51 pm

Joan Guarro Flo wrote:Hi,
As it can also be seen with the graph of Umberto. It is very possible that there is a reverse relationship, between, the increase in brightness of the Nova and the decrease in the intensity of the Halpha.
Joan.


Yes, Joan, the nova is again rebrightening. Outstanding!

Here is a spectrum from two nights before- the nova is getting more and more difficult to observe. Again P-Cyg profiles but now the bands are broad.

_novasct2017_20171022_764_FPC.png
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Salut!
Fran
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Re: New transcient, perhaps a nova

Postby Francois Teyssier » Wed Oct 25, 2017 5:50 pm

Update of the lightcurve and spectroscopic coverage
Impressive!

NovaSct2017.PNG
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A few more spectra of this new brighning are welcome. Yes, the nopva is lower and lower.

All the best,

François
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Re: New transcient, perhaps a nova

Postby Forrest Sims » Fri Oct 27, 2017 11:51 pm

Greetings,

I was lucky enough to capture Nova sct2017 last evening just after sunset. This a hard target as you know being rather low to the southwest at sunset. Being at latitude 33 degrees did help. I was able to get 10 300sec exposures. Halpha is overexposed to, help improve the SNR at other wavelengths.

Woody
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