TCP J18292290-1430460 = Nova Sct 2018
-
- Posts: 168
- Joined: Fri Apr 04, 2014 6:31 pm
- Location: Arnprior Ontario
Re: TCP J18292290-1430460, mag 10 in Sct
Here is my echelle result for July 9th.
I have replaced my QSI583 imager with an ASI1600mm pro. I am getting much better S/N, particularly at the blue end. Very pleased.
Tim
I have replaced my QSI583 imager with an ASI1600mm pro. I am getting much better S/N, particularly at the blue end. Very pleased.
Tim
-
- Posts: 1521
- Joined: Fri Sep 23, 2011 1:01 pm
- Location: Rouen
- Contact:
Re: TCP J18292290-1430460, mag 10 in Sct
Excellent, Tim
Thank you for sharing your point of view about ASI1600mm
Did you bin 2,
François
Thank you for sharing your point of view about ASI1600mm
Did you bin 2,
François
François Teyssier
http://www.astronomie-amateur.fr
http://www.astronomie-amateur.fr
-
- Posts: 168
- Joined: Fri Apr 04, 2014 6:31 pm
- Location: Arnprior Ontario
Re: TCP J18292290-1430460, mag 10 in Sct
To answer your question Francois I actually binned 3x3 (after calibrating and combining the images un-binned).
This gives a sampling factor of only 2.1 which is not really enough. Also I had to leave optimum binning turned off in ISIS.
Here is the same data processed with 2x2 binnnig and with optimum binning turned on. Sampling is 3.2.
And here is a detailed comparison.
I'm not sure if the gain in S/N for 3x3 binning is justified for very faint objects due to the marginal sampling.
Tim
This gives a sampling factor of only 2.1 which is not really enough. Also I had to leave optimum binning turned off in ISIS.
Here is the same data processed with 2x2 binnnig and with optimum binning turned on. Sampling is 3.2.
And here is a detailed comparison.
I'm not sure if the gain in S/N for 3x3 binning is justified for very faint objects due to the marginal sampling.
Tim
-
- Posts: 161
- Joined: Wed Dec 11, 2013 5:50 pm
Re: TCP J18292290-1430460, mag 10 in Sct
Change in the spectrum of the nova between 3rd and 10th July. V mag has dropped from 10.76 to 11.62 and the (B-V) colour changed from 1.22 to 1.08.
Flux in the H-alpha emission line has increased by almost 30%.
David
Flux in the H-alpha emission line has increased by almost 30%.
David
-
- Posts: 242
- Joined: Tue Dec 30, 2014 3:25 pm
Re: TCP J18292290-1430460, mag 10 in Sct
Bonjour à tous, placé le profil de la nova observé le 11-07-2018 calibré en flux absolu avec la photométrie contemporaine de Paolo Berardi.
Umberto
Umberto
Last edited by umberto sollecchia on Thu Jul 12, 2018 2:21 pm, edited 1 time in total.
-
- Posts: 578
- Joined: Thu Sep 29, 2011 10:51 pm
Re: TCP J18292290-1430460, mag 10 in Sct
Hi all, a new observation for 11 July. The profile is flux calibrated using a contemporary V photometry and low-res spectroscopy (by Umberto).
Heliocentric radial velocity plot (telluric removed):
The mean magnitude during the integration was V 11.30 with an upward brightness trend. The light curve:
Paolo
Heliocentric radial velocity plot (telluric removed):
The mean magnitude during the integration was V 11.30 with an upward brightness trend. The light curve:
Paolo
-
- Posts: 1431
- Joined: Mon Sep 26, 2011 6:59 pm
- Contact:
Re: TCP J18292290-1430460, mag 10 in Sct
Nova Sct 2018 during the spectro OHP workshop (Observatoire de Haute-Provence):
Christian
Christian
-
- Posts: 578
- Joined: Thu Sep 29, 2011 10:51 pm
Re: TCP J18292290-1430460, mag 10 in Sct
Enjoy the workshop, gretings to all of you!
Yesterday observation (13.833 July) with C9.25 and Lhires III 1200.
Radial velocity plot:
Paolo
Yesterday observation (13.833 July) with C9.25 and Lhires III 1200.
Radial velocity plot:
Paolo
-
- Posts: 1246
- Joined: Thu Sep 29, 2011 6:35 am
- Location: Rhône Alpes FRANCE
- Contact:
Re: TCP J18292290-1430460, mag 10 in Sct
Two last Atel on this nova :
http://www.astronomerstelegram.org/?read=11826
http://www.astronomerstelegram.org/?read=11859
During OHP spectro party Stephane Charbonnel took 2 eShel spectra with a 300mm newton telescope, a challenge according the last magnitude of this nova.
Spectra visible in ARAS database :
http://www.astrosurf.com/aras/Aras_Data ... ct2018.htm
http://www.astronomerstelegram.org/?read=11826
http://www.astronomerstelegram.org/?read=11859
During OHP spectro party Stephane Charbonnel took 2 eShel spectra with a 300mm newton telescope, a challenge according the last magnitude of this nova.
Spectra visible in ARAS database :
http://www.astrosurf.com/aras/Aras_Data ... ct2018.htm
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
-
- Posts: 7
- Joined: Sat Nov 14, 2015 10:58 am
Re: TCP J18292290-1430460, mag 10 in Sct
Hallo everybody,
here my last spectra compared with the 4th July consistent with those reported at low resolution.
Since we use a Newton telescope togheter with an Alpy setup, i am strong interest to know more information about calibration spectra and problems about the weight of the cameras and the spectroscope on the newton focuser. I Read Stephane Charbonnel used a newton; does someone tell me more?
Clear nights
Regards
here my last spectra compared with the 4th July consistent with those reported at low resolution.
Since we use a Newton telescope togheter with an Alpy setup, i am strong interest to know more information about calibration spectra and problems about the weight of the cameras and the spectroscope on the newton focuser. I Read Stephane Charbonnel used a newton; does someone tell me more?
Clear nights
Regards