New transcient, perhaps a nova
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Re: New transcient, perhaps a nova
Here's my last spectrum taken last night.
Comparison with the last echelle spectrum of Joan (taken in the ARAS data base)
And Balmer lines (H Alpha and H Beta)
Comparison with the last echelle spectrum of Joan (taken in the ARAS data base)
And Balmer lines (H Alpha and H Beta)
LHIRES III #5, LISA, e-Shel, C14, RC400 Astrosib, AP1600
http://o.garde.free.fr/astro/Spectro1/Bienvenue.html
http://o.garde.free.fr/astro/Spectro1/Bienvenue.html
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Re: New transcient, perhaps a nova
Hi,
Variations of the NovaSct2017 on the last 24 hours.
The star continue having it's ascending tendence in the Hidrogen.
Joan.
Variations of the NovaSct2017 on the last 24 hours.
The star continue having it's ascending tendence in the Hidrogen.
Joan.
- Attachments
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- novasct2017_20170811_2DIESA.png (31.88 KiB) Viewed 7750 times
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- novasct2017_20170811_2DIESB.png (48.96 KiB) Viewed 7750 times
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Re: New transcient, perhaps a nova
Congratulations Joan and Olivier,
The evolution during the decline is impressive.
François
The evolution during the decline is impressive.
François
François Teyssier
http://www.astronomie-amateur.fr
http://www.astronomie-amateur.fr
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Re: New transcient, perhaps a nova
Bonjour à tous, le profil de la nova observé le soir 13/08/2017. Umberto
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Re: New transcient, perhaps a nova
Hi all, I added my last observations in the following profile animations.
H-beta and Fe II (42), sequence that includes July 26, 30, Aug 1, 3, 9 obs.
H-alpha region. Includes July 10, 25, 31, Aug 13 obs.
The same spectra (H-alpha) at lower flux values:
Paolo
H-beta and Fe II (42), sequence that includes July 26, 30, Aug 1, 3, 9 obs.
H-alpha region. Includes July 10, 25, 31, Aug 13 obs.
The same spectra (H-alpha) at lower flux values:
Paolo
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Re: New transcient, perhaps a nova
Hello,
here is my contribution from the night before yesterday.
Greetings
Fran
here is my contribution from the night before yesterday.
Greetings
Fran
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Re: New transcient, perhaps a nova
Hi,
These graphics showing the evolution of the Hydrogen on de last nights.
The last night was cloudy in my two observatories.
Joan.
These graphics showing the evolution of the Hydrogen on de last nights.
The last night was cloudy in my two observatories.
Joan.
- Attachments
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- novasct2017_20170811_4DIESA.png (50.13 KiB) Viewed 7672 times
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- novasct2017_20170811_4DIESB.png (68.65 KiB) Viewed 7672 times
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Re: New transcient, perhaps a nova
Hello Catalunya and all,
yesterday I measured V mag 10.30 (~ 21 UT, Aug 15). I tried to capture the complex Na D and He I 5876 superimposed lines.
Paolo
yesterday I measured V mag 10.30 (~ 21 UT, Aug 15). I tried to capture the complex Na D and He I 5876 superimposed lines.
Paolo
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Re: New transcient, perhaps a nova
Hi all, Bongiorno Paolo !
The NOVA SCT2017, continued with it ascending Hydrogen emission. Is it normal ?
No tinc por, Joan.
The NOVA SCT2017, continued with it ascending Hydrogen emission. Is it normal ?
No tinc por, Joan.
- Attachments
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- novasct2017_20170811_6DIESA.png (66.61 KiB) Viewed 7643 times
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- novasct2017_20170811_6DIESB.png (72.11 KiB) Viewed 7643 times
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Re: New transcient, perhaps a nova
Finally, I join the campaign ...
Not easy at Latitude 50N (+ haze tonight)
But impressive change in the Balmer profiles within 2 days
Udate with Paolo spectrum (18-08)
Flat top: signature of an almost spherical ejecta - Still very opaque (absorption at -280 km/s)
François
Not easy at Latitude 50N (+ haze tonight)
But impressive change in the Balmer profiles within 2 days
Udate with Paolo spectrum (18-08)
Flat top: signature of an almost spherical ejecta - Still very opaque (absorption at -280 km/s)
François
François Teyssier
http://www.astronomie-amateur.fr
http://www.astronomie-amateur.fr