Affiliation
Association Francaise des Observateurs d'Etoiles Variables (AFOEV)
Tue, 10/29/2019 - 12:21
ASASSN-19aad (= AT 2019tpb, TCP J18395972-1025415)
Discovery details:
R.A. 18h39m59.70s, Decl. -10°25'41.5" (J2000.0, K. Itagaki's follow-up observation)
2019 October 29.0578 UT, gmag. 11.56 (ASAS-SN)
Discoverer: All-Sky Automated Survey for Supernovae (ASAS-SN)
Links:
https://wis-tns.weizmann.ac.il/object/2019tpb
http://www.cbat.eps.harvard.edu/unconf/followups/J18395972-1025415.html
https://asas-sn.osu.edu/light_curves/f4d4863d-ca2a-4238-9adb-04bdd551ba…
http://k-itagaki.jp/images/PN-sct.jpg
Looks like a (reddened) nova that erupted on 2019 October 28.
Spectroscopy and multiband-photometry (also precise astrometry) are urgently required.
Clear skies,
Patrick
Indeed a red new star, Thank you Patrick for this new nova, the 3rd I saw in Sct
2017 : ASASSN-17HX and Nova Sct 2018
I just made two visual observations:
m +9.34 - 2019/10/29/18/00 UT
m +9.32 - 2019/10/29/18/55 UT
Sorry I'm just a visual observer
Michel
ASASSN-19aad (N)
https://www.aavso.org/vsx/index.php?view=detail.top&oid=1499545
Spectroscopic Classification of AT 2019tpb/ASASSN-19aad as a Galactic Nova (ATel #13241): http://www.astronomerstelegram.org/?read=13241
Regards,
Patrick
PS:
My pleasure, Michel. Btw, please use the GCVS names V612 Sct for ASASSN-17hx and V613 Sct for Nova Scuti 2018:
https://www.aavso.org/vsx/index.php?view=detail.top&oid=479147
https://www.aavso.org/vsx/index.php?view=detail.top&oid=621695
The new nova brightened to mag 8.6 as of last night's observations from ROAD observatory, BVRI data submitted to the AAVSO.
I think more and brighter comp stars are needed for this target.
Josch
I've just wrote in the PACA_Transients facebook group, that it seems, still ASASSN-19aad is brightening. On my images made this morning around 01:45UT (JD 2458786.57324) using T20 of itelescope.net at Mayhill NM the nova was around. 8.7V.
Clear skies,
Robert
V659 Scuti = ASASSN-19aad (N)
https://www.aavso.org/vsx/index.php?view=detail.top&oid=1499545
Central Bureau for Astronomical Telegrams, Electronic Telegram No. 4690 (behind paywall): http://www.cbat.eps.harvard.edu/iau/cbet/004600/CBET004690.txt
Regards,
Patrick
Hello all!
I observed (around 2458787.57 JD) V0659 Scuti remotely with iTelescope T5 and added my observations to the AAVSO database: V ≈ 8.4 mag., B ≈ 9.95 mag.
I am attaching the photo (15+30+60 sec. exposure time, FOV = 60.6 x 40.8 arcmin, V band).
Best regards,
Filipp.
Based on my recent observations (2458787.94 JD) from Yuzhno-Morskoy (near Nakhodka, Russia), star brightness decreases. It was about 8.77 TG (Canon EOS 60D, 135mm lens, exposure time 8 sec., ISO-6400).
I am attaching one of the photographs.
Best regards,
Filipp.
Extended AAVSO chart with brighter comp stars:
https://www.aavso.org/apps/vsp/chart/X24867AT.png
Friends,
It seems me that is the image of the Nova Sct 2019; mag 8.9
Carlos - ACN
(photo of Luiz Antonio Reck Araujo, Pelotas - RS- Brazil)
AAVSO Alert Notice 683 reports on V659 Sct = N Sct 2019 (= ASASSN-19aad, TCP J18395972-102541). Please see the notice for discovery details, recent observations, and observing instructions. Note that the sequence for V659 Sct has been extended in both directions since its initial release.
Many thanks, and Good observing,
Elizabeth O. Waagen, AAVSO HQ
Thanks for creating the Alert Notice! I hope that now more observers will pay attention to this star.
My latest observations of this variable:
2019 Nov. 01.44697 9.184 0.09 TG
2019 Nov. 01.44678 9.199 0.09 TG
I also attach one of the new photos (Canon EOS 60D on the tripod, 135mm lens, exposure time 10 sec., ISO-6400).
Best regards,
Filipp.
I photographed this variable star with my camera in the evening of November 2 and November 3. My observations:
2019 Nov. 02.38472 9.351 0.1 TG
2019 Nov. 03.40278 9.78 0.07 TG
Photo 1 - single shot taken on November 2.
Photo 2 - stack (6 * 10 seconds) taken on November 2.
Made my first visual observation, based on a Slooh digital image. I estimated V659 Sct at mag 9.5 using comp stars 91 and 9.8.
2019 Nov. 04.40139 10.149 0.09 TG
Canon EOS 60D, 135mm lens. Stack 9*10 sec.
According to latest observations, the nova is fading quickly. Recently it's fainter than 10 visually. Unfortunately the wheather here in Hungary is hopeless now :(
I hope the cataclysmic guys from other parts of the planet can regularly observe V659 Sct.
Clear skies,
Robert
hi Robert,
I continue observations of this nova and last nights data are in the AAVSo database.
The V magnitude is about 9.8.
Josch
The brightness of the star for the day has not changed (within the error).
2019 Nov. 05.39792 10.089 +-0.07 TG
I measured the brightness of the V659 Scuti from my other photos for the dates from November 2 to 5:
2019 Nov. 02.38681 9.376 +/- 0.07 TG
2019 Nov. 03.40556 9.74 +/- 0.04 TG
2019 Nov. 04.40243 10.03 +/- 0.08 TG
2019 Nov. 05.39988 10.29 +/- 0.1 TG
In the evening of November 6, I once again photographed this variable star. My DSLR observations (I attached my photo):
2019 Nov. 06.40937 10.44 0.05 TG
2019 Nov. 06.41042 10.51 0.05 TG
In my photo (I attached it) dated November 7, 2019, the star showed rapid fading:
2019 Nov. 07.39097 11.0 +/- 0.1 TG
Today, the brightness of the star was again at 10.4 TG.
2019 Nov. 08.39514 10.402 +/-0.1 TG
2019 Nov. 08.39722 10.40 +/-0.05 TG
AAVSO light curve shows a period of about two days. Yesterday, I photographed a sharp decrease in the brightness of the variable.
The brightness of the star decreased much.
2019 Nov. 09.39931 12.0 +/- 0.2 TG
Hallo everybody,
I am Paolo from Italy and I am a new aavso member. I am just e bit confused regarding the extention used to submit spectra files: they should be ascii or fits file?
I've been following this nova from October 29th and i would like to show you a comparison made between November 8th and 10th when the nova still showed a diffuse spectrum behavior. Please, the following it's just an image file.
I hope there is good weather tonight
Paolo
B & V photometry obtained with the NSU/UVA Fan Mountain 24-inch + CCD 238 days since maximum gives
2459025.8 V 18.676 (0.029) and B 19.315 (0.042)
No other measurements have been uploaded to the AAVSO db since last observing season other than one rather discordant "visual" estimate.
Jim DeYoung (DEY)