TCP J18292290-1430460 = Nova Sct 2018
-
- Posts: 578
- Joined: Thu Sep 29, 2011 10:51 pm
TCP J18292290-1430460 = Nova Sct 2018
Hi all, from CBAT "Transient Object Followup Reports":
http://www.cbat.eps.harvard.edu/unconf/ ... 30460.html
No confirmation so far. A possible nova?
Coord 2000 (high reddening there...):
AR 18 29 22.90
DEC -14 30 46.0
Paolo
http://www.cbat.eps.harvard.edu/unconf/ ... 30460.html
No confirmation so far. A possible nova?
Coord 2000 (high reddening there...):
AR 18 29 22.90
DEC -14 30 46.0
Paolo
-
- Posts: 1247
- Joined: Thu Sep 29, 2011 6:35 am
- Location: Rhône Alpes FRANCE
- Contact:
Re: TCP J18292290-1430460, mag 10 in Sct
Hi Paolo,
Thanks for this information, I will try this night with my eShel.....
Thanks for this information, I will try this night with my eShel.....
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: 578
- Joined: Thu Sep 29, 2011 10:51 pm
Re: TCP J18292290-1430460, mag 10 in Sct
Hi Olivier, according to P. Schmeer follow-up, it could be a variable star that exhibited in the past some brightenings but not so strong like the present (see the ASAS-SN Sky Patrol light curve). Anyway urgent spectroscopy is required.
Paolo
Paolo
-
- Posts: 1522
- Joined: Fri Sep 23, 2011 1:01 pm
- Location: Rouen
- Contact:
Re: TCP J18292290-1430460, mag 10 in Sct
Thank you Paolo
Spectra welcome for the database and perhaps an ATel for identification
François
Text written by Patrick on AAVSO Forum
TCP J18292290-1430460 (N:)
https://www.aavso.org/vsx/index.php?vie ... oid=621695 [1]
Discovery details:
R.A. 18h29m22.90s, Decl. -14°30'46.0" (J2000.0)
2018 June 29.5768 UT, 10.3 mag (unfiltered)
Discoverer: Yukio Sakurai (Mito, Japan)
2018 06 29.577 UT
Discovered by Y. Sakurai, Mito, Japan, on two frames using Nikon D7100
digital camera + 180-mm f/2.8 lens, who writes there is a variable star
TSVSC1-TN-S300112300-126-67-2 at 21s.88 and 51".1. Nothing is visible at this
location on a frame (limit mag.= 12.1) taken on 2018 June 23.632 UT.
2018 06 30.2646 UT
Photometry results were V=10.43 and Ic=9.35 with 0.61-m f/6.5 CDK astrograph
+ FLI PL09000 CCD, iTelescope.NET at Auberry, CA, USA. Position end figures
were 22.93 and 43.9 in R.A.and Dec.
Seiichiro Kiyota (Japan)
2018 06 30.528 UT
Mag. V= 10.57, R= 9.69, I= 8.84, position end figures 22s.96, 44".0 observed
by K. Yoshimoto, Yamaguchi-ken, Japan, using 0.50-m f/6.8 reflector + CCD +
focal reducer, Siding Spring, remotely. An image at
http://orange.zero.jp/k-yoshimoto/TCP-J ... 0_0630.jpg [2]
2018 06 30.5960 UT
Another photometry results were B=12.16, V=10.98, Rc=10.37 and Ic=9.83 with
0.43-m f/6.8 CDK astrograph + FLI PL4710 CCD at iTelescope.NET, SSO, NSW,
Australia, I took low resolution spectra but I can detected no significant
feature (at leat, it is not late type star like Mira variables).
Seichiro Kiyota (Japan)
2018 06 30.67 UT
A progenitor candidate is the Pan-STARRS1 source PSO J182922.940-143044.155
(position end figures 22.935s, 44.19"; i= 20.26 mag). Likely nova eruption
with amplitude of more than 11 magnitudes (V band). --- Patrick Schmeer
(Saarbrücken-Bischmisheim, Germany)
http://www.cbat.eps.harvard.edu/unconf/ ... 30460.html [3]
The likely nova is located 4 arc minutes NE of gamma Scuti.
*** Spectroscopy and multiband photometry are urgently required. ***
Clear skies,
Patrick
Spectra welcome for the database and perhaps an ATel for identification
François
Text written by Patrick on AAVSO Forum
TCP J18292290-1430460 (N:)
https://www.aavso.org/vsx/index.php?vie ... oid=621695 [1]
Discovery details:
R.A. 18h29m22.90s, Decl. -14°30'46.0" (J2000.0)
2018 June 29.5768 UT, 10.3 mag (unfiltered)
Discoverer: Yukio Sakurai (Mito, Japan)
2018 06 29.577 UT
Discovered by Y. Sakurai, Mito, Japan, on two frames using Nikon D7100
digital camera + 180-mm f/2.8 lens, who writes there is a variable star
TSVSC1-TN-S300112300-126-67-2 at 21s.88 and 51".1. Nothing is visible at this
location on a frame (limit mag.= 12.1) taken on 2018 June 23.632 UT.
2018 06 30.2646 UT
Photometry results were V=10.43 and Ic=9.35 with 0.61-m f/6.5 CDK astrograph
+ FLI PL09000 CCD, iTelescope.NET at Auberry, CA, USA. Position end figures
were 22.93 and 43.9 in R.A.and Dec.
Seiichiro Kiyota (Japan)
2018 06 30.528 UT
Mag. V= 10.57, R= 9.69, I= 8.84, position end figures 22s.96, 44".0 observed
by K. Yoshimoto, Yamaguchi-ken, Japan, using 0.50-m f/6.8 reflector + CCD +
focal reducer, Siding Spring, remotely. An image at
http://orange.zero.jp/k-yoshimoto/TCP-J ... 0_0630.jpg [2]
2018 06 30.5960 UT
Another photometry results were B=12.16, V=10.98, Rc=10.37 and Ic=9.83 with
0.43-m f/6.8 CDK astrograph + FLI PL4710 CCD at iTelescope.NET, SSO, NSW,
Australia, I took low resolution spectra but I can detected no significant
feature (at leat, it is not late type star like Mira variables).
Seichiro Kiyota (Japan)
2018 06 30.67 UT
A progenitor candidate is the Pan-STARRS1 source PSO J182922.940-143044.155
(position end figures 22.935s, 44.19"; i= 20.26 mag). Likely nova eruption
with amplitude of more than 11 magnitudes (V band). --- Patrick Schmeer
(Saarbrücken-Bischmisheim, Germany)
http://www.cbat.eps.harvard.edu/unconf/ ... 30460.html [3]
The likely nova is located 4 arc minutes NE of gamma Scuti.
*** Spectroscopy and multiband photometry are urgently required. ***
Clear skies,
Patrick
François Teyssier
http://www.astronomie-amateur.fr
http://www.astronomie-amateur.fr
-
- Posts: 1522
- Joined: Fri Sep 23, 2011 1:01 pm
- Location: Rouen
- Contact:
Re: TCP J18292290-1430460, mag 10 in Sct
Message from Stve Shore
high resolution if possible (and, please, not the usual Halpha only if at all possible) -- it's very important to get the 4800-5300A region and, if possible, the longest wavelengths at around Ca II (infrared triplet around 8600) and O I (the 8446 line). The main thing is to sit on this as long as you can, taking spectra with a cadence of perhaps a day or two, but it will also mean following it for some period if you're all willing.
As proposed by David Boyd, gam Sct looks to be a good reference V mag 4.68, sp type A1 IV/V
Clear sky here. But the target is too low. I've to wait a couple of hours, with CH and Ci Cyg.
François
high resolution if possible (and, please, not the usual Halpha only if at all possible) -- it's very important to get the 4800-5300A region and, if possible, the longest wavelengths at around Ca II (infrared triplet around 8600) and O I (the 8446 line). The main thing is to sit on this as long as you can, taking spectra with a cadence of perhaps a day or two, but it will also mean following it for some period if you're all willing.
As proposed by David Boyd, gam Sct looks to be a good reference V mag 4.68, sp type A1 IV/V
Clear sky here. But the target is too low. I've to wait a couple of hours, with CH and Ci Cyg.
François
François Teyssier
http://www.astronomie-amateur.fr
http://www.astronomie-amateur.fr
-
- Posts: 1247
- Joined: Thu Sep 29, 2011 6:35 am
- Location: Rhône Alpes FRANCE
- Contact:
Re: TCP J18292290-1430460, mag 10 in Sct
It's a Nova. On the raw first data, we can see à P Cyg profil on H alpha and others lines, very weak for an eShel Spectrum.
And the field of the auto guiding CCD
And the field of the auto guiding CCD
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: 1522
- Joined: Fri Sep 23, 2011 1:01 pm
- Location: Rouen
- Contact:
Re: TCP J18292290-1430460, mag 10 in Sct
Excellent
f
f
François Teyssier
http://www.astronomie-amateur.fr
http://www.astronomie-amateur.fr
-
- Posts: 242
- Joined: Tue Dec 30, 2014 3:25 pm
Re: TCP J18292290-1430460, mag 10 in Sct
Bonsoir à tous, placé le profil de la nova observé ce soir avec Alpy600. Umberto
Last edited by umberto sollecchia on Sat Jun 30, 2018 11:16 pm, edited 1 time in total.
-
- Posts: 1522
- Joined: Fri Sep 23, 2011 1:01 pm
- Location: Rouen
- Contact:
Re: TCP J18292290-1430460, mag 10 in Sct
Excellent, Umberto
Strong Na I D absorption
Waiting for the spectrum
f
Strong Na I D absorption
Waiting for the spectrum
f
François Teyssier
http://www.astronomie-amateur.fr
http://www.astronomie-amateur.fr
-
- Posts: 578
- Joined: Thu Sep 29, 2011 10:51 pm
Re: TCP J18292290-1430460, mag 10 in Sct
Congratulations Olivier, Umberto!
So we have a classical nova...
Paolo
So we have a classical nova...
Paolo