Re: TCP J04291884+4354232 possible nova mag 10.2
Posted: Sun Nov 29, 2020 10:03 am
A CBET, with reference to Olivier' spectra (thanks for the link, Olivier):
> Objet : CBET 4890: V1112 PERSEI = NOVA PER 2020
>
> Electronic Telegram No. 4890
> Central Bureau for Astronomical Telegrams
> Mailing address: Hoffman Lab 209; Harvard University;
> 20 Oxford St.; Cambridge, MA 02138; U.S.A.
> e-mail: cbatiau@eps.harvard.edu(alternate cbat@iau.org)
> URL http://www.cbat.eps.harvard.edu/index.html
> Prepared using the Tamkin Foundation Computer Network
>
>
> V1112 PERSEI = NOVA PERSEI 2020 = TCP J04291884+4354232
> S. Nakano, Sumoto, Japan, reports the discovery of an apparent nova (mag
> 10.6) by Seiji Ueda (Kushiro, Hokkaido, Japan) on six unfiltered 14-s
> exposures (limiting mag 13.9) taken on Nov. 25.807 UT with a Canon EOS 6D
> digital camera + 200-mm-f.l. f/3.2 telephoto lens; three confirming frames
> (limiting mag 15.6) taken by Ueda with a 0.16-m f/6.3 reflector on Nov.
> 25.813 yield the following position for the variable: R.A. = 4h29m18s.84,
> Decl. = +43d54'23".2 (equinox J2000.0). When Nakano posted the variable to
> the Central Bureau's TOCP webpage, it was automatically assigned the
> provisional designation TCP J04291884+4354232. Shortly after Ueda's
> discovery was posetd on the TOCP, an independent discovery of this variable
> at mag 10.6 on Nov. 25.844 by Stanislav Korotkiy (Ka-Dar Observatory/
> Astrovert), Kirill Sokolovsky (Sternberg Astronomical Institute, Moscow
> State University), and Olga Smolyankina (Omsk Observatory) was posted on
> the TOCP with position end figures 18s.88, 23".3 (which yielded another
> TOCP designation, TCP J04291888+4354233); they found the variable on three
> 20-s CCD exposures (limiting mag about 14.0) taken with a 135-mm-f.l. f/2.0
> telephoto lens (and ST8300M camera) located at the Ka-Dar Observatory's TAU
> Station/Astrovert, at Nizhny Arkhyz, Russia (discovery image posted at
> website URL https://vk.com/doc265309_576614930).
> Additional CCD magnitudes (unfiltered unless noted otherwise) for TCP
> J04291884+4354232: Nov. 23, [13.6 (Ueda); Nov. 24.054 UT, [13.5 (Korotkiy);
> Nov. 25.365, [16.8 (ASAS-SN Sky Patrol; reported by P. Schmeer, Bischmisheim,
> Germany); Nov. 25.908, 10.4 (Sokolovsky et al.); Nov. 26.028, 10.2 (Sokolovsky
> et al.; improved position end figures 18s.85, 23".0 with an 8-cm refractor);
> Nov. 26.064, B = 10.84, V = 10.25, I_c = 9.33 (S. Kiyota, Kamagaya, Japan,
> 0.25-m reflector near Mayhill; position end figures 18s.85, 23".3); Nov.
> 26.115, V = 10.22, I = 9.08, B = 10.90 (K. Yoshimoto, Yamaguchi-ken, Japan,
> remotely with a 0.25-m f/3.4 reflector near Mayhill, NM, USA; position end
> figures 18s.88, 22".8; an I-band image was posted at website URL
> http://orange.zero.jp/k-yoshimoto/TCP_J ... 201126.jpg);
> Nov. 26.349, 9.8 (Y. Sano, Nayoro Hokkaido, Japan, 0.36-m reflector; image
> at http://sn1997ef.web.fc2.com/sn/nova/202 ... -nova.html);
> Nov. 26.358, 10.0 (T. Noguchi, Katori, Japan; 30-s unfiltered exposure with a
> 0.23-m f/10 Schmidt-Cassegrain reflector; limiting mag 17.5; position end
> figures 18s.84, 23".1 using UCAC4 reference stars; image posted at website
> URL http://park8.wakwak.com/~ngc/images/TCP ... 201126.jpg); Nov. 26.363,
> R = 9.6 (F. Watanabe, Nayoro Observatory, Nayoro, Japan, 0.4-m f/10 Meili
> telescope; position end figures 18s.81, 22".0; UCAC4 reference stars); Nov.
> 26.387, 10.0 (F. Romanov, (Yuzhno-Morskoy, Nakhodka, Russia, forty-five
> stacked 5-s exposures taken with a Canon EOS 60D camera + 135-mm f/5.6 lens;
> image posted at URL https://www.flickr.com/photos/filipp-ro ... 0648272161);
> Nov. 26.47, B = 10.51, V = 9.91, R = 9.29, I = 8.76 (A. Pearce, Nedlands, W.
> Australia; remotely with a 0.43-m f/7 reflector near Mayhill; position end
> figures 18s.84, 23".0); Nov. 27.436, 9.0 (Romanov); Nov. 27.841, 8.7
> (Romanov); Nov. 28.444, 8.8 (Romanov). Schmeer was unable to find any other
> brightenings of this variable in ASAS-SN Sky Patrol images back to 2012 Feb.
> 14. Schmeer provides his visual-magnitude estimates for TCP
> J04291884+4354232, obtained with a 20.3-cm reflector: Nov. 26.024, 10.2;
> 26.792, 9.5.
> Selected visual magnitudes supplied by E. O. Waagen, AAVSO: Nov. 25.938,
> 10.4 (G. Poyner, Birmingham, UK); 26.085, 10.3 (L. Shotter, Uniontown, PA,
> USA); 26.100, 10.4 (B. Granslo, Oslo, Norway); 26.193, 10.3 (M. Deconinck,
> Artignosc sur Verdon, France); 26.203, 9.9 (Deconinck); 26.773, 9.3 (H. De
> Angelis, Bromma, Sweden); 26.893, 9.4 (T. Jensen, Bornholm, Denmark); 26.967,
> 9.0 (C. Marcos da Silva, Minas Gerais, Brazil); 27.149, 9.4 (C. Chiselbrook,
> Canton, GA, USA); 27.781, 8.7 (J. Jacobsen, Frederica, Denmark); 27.856, 8.7
> (De Angelis); 27.890, 8.4 (W. Vollmann, Vienna, Austria); 27.983, 8.4 (A.
> Uhrin, Hungary). Waagen also provides the following CCD magnitudes from
> B. Harris, New Smyrna Beach, FL, USA: Nov. 27.223, I = 8.13, V = 9.06, R =
> 8.56; 27.224, B = 9.76.
> O. Garde, Chabons, France, writes that an echelle spectrogram
> obtained with a 40-cm reflector shows P-Cyg profiles on the Balmer emission
> lines; his results are posted at the following two website URLs:
> http://www.spectro-aras.com/forum/viewt ... 6&t=3D2674 and
> http://www.astrosurf.com/aras/Aras_Data ... er2020.htm.
> E. Kazarovets informs the Central Bureau that the permanent GCVS
> designation V1112 Per has been assigned to this nova.
>
>
> NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
> superseded by text appearing later in the printed IAU Circulars.
>
> (C) Copyright 2020 CBAT
> 2020 November 28 (CBET 4890) Daniel W. E. Green
> Objet : CBET 4890: V1112 PERSEI = NOVA PER 2020
>
> Electronic Telegram No. 4890
> Central Bureau for Astronomical Telegrams
> Mailing address: Hoffman Lab 209; Harvard University;
> 20 Oxford St.; Cambridge, MA 02138; U.S.A.
> e-mail: cbatiau@eps.harvard.edu(alternate cbat@iau.org)
> URL http://www.cbat.eps.harvard.edu/index.html
> Prepared using the Tamkin Foundation Computer Network
>
>
> V1112 PERSEI = NOVA PERSEI 2020 = TCP J04291884+4354232
> S. Nakano, Sumoto, Japan, reports the discovery of an apparent nova (mag
> 10.6) by Seiji Ueda (Kushiro, Hokkaido, Japan) on six unfiltered 14-s
> exposures (limiting mag 13.9) taken on Nov. 25.807 UT with a Canon EOS 6D
> digital camera + 200-mm-f.l. f/3.2 telephoto lens; three confirming frames
> (limiting mag 15.6) taken by Ueda with a 0.16-m f/6.3 reflector on Nov.
> 25.813 yield the following position for the variable: R.A. = 4h29m18s.84,
> Decl. = +43d54'23".2 (equinox J2000.0). When Nakano posted the variable to
> the Central Bureau's TOCP webpage, it was automatically assigned the
> provisional designation TCP J04291884+4354232. Shortly after Ueda's
> discovery was posetd on the TOCP, an independent discovery of this variable
> at mag 10.6 on Nov. 25.844 by Stanislav Korotkiy (Ka-Dar Observatory/
> Astrovert), Kirill Sokolovsky (Sternberg Astronomical Institute, Moscow
> State University), and Olga Smolyankina (Omsk Observatory) was posted on
> the TOCP with position end figures 18s.88, 23".3 (which yielded another
> TOCP designation, TCP J04291888+4354233); they found the variable on three
> 20-s CCD exposures (limiting mag about 14.0) taken with a 135-mm-f.l. f/2.0
> telephoto lens (and ST8300M camera) located at the Ka-Dar Observatory's TAU
> Station/Astrovert, at Nizhny Arkhyz, Russia (discovery image posted at
> website URL https://vk.com/doc265309_576614930).
> Additional CCD magnitudes (unfiltered unless noted otherwise) for TCP
> J04291884+4354232: Nov. 23, [13.6 (Ueda); Nov. 24.054 UT, [13.5 (Korotkiy);
> Nov. 25.365, [16.8 (ASAS-SN Sky Patrol; reported by P. Schmeer, Bischmisheim,
> Germany); Nov. 25.908, 10.4 (Sokolovsky et al.); Nov. 26.028, 10.2 (Sokolovsky
> et al.; improved position end figures 18s.85, 23".0 with an 8-cm refractor);
> Nov. 26.064, B = 10.84, V = 10.25, I_c = 9.33 (S. Kiyota, Kamagaya, Japan,
> 0.25-m reflector near Mayhill; position end figures 18s.85, 23".3); Nov.
> 26.115, V = 10.22, I = 9.08, B = 10.90 (K. Yoshimoto, Yamaguchi-ken, Japan,
> remotely with a 0.25-m f/3.4 reflector near Mayhill, NM, USA; position end
> figures 18s.88, 22".8; an I-band image was posted at website URL
> http://orange.zero.jp/k-yoshimoto/TCP_J ... 201126.jpg);
> Nov. 26.349, 9.8 (Y. Sano, Nayoro Hokkaido, Japan, 0.36-m reflector; image
> at http://sn1997ef.web.fc2.com/sn/nova/202 ... -nova.html);
> Nov. 26.358, 10.0 (T. Noguchi, Katori, Japan; 30-s unfiltered exposure with a
> 0.23-m f/10 Schmidt-Cassegrain reflector; limiting mag 17.5; position end
> figures 18s.84, 23".1 using UCAC4 reference stars; image posted at website
> URL http://park8.wakwak.com/~ngc/images/TCP ... 201126.jpg); Nov. 26.363,
> R = 9.6 (F. Watanabe, Nayoro Observatory, Nayoro, Japan, 0.4-m f/10 Meili
> telescope; position end figures 18s.81, 22".0; UCAC4 reference stars); Nov.
> 26.387, 10.0 (F. Romanov, (Yuzhno-Morskoy, Nakhodka, Russia, forty-five
> stacked 5-s exposures taken with a Canon EOS 60D camera + 135-mm f/5.6 lens;
> image posted at URL https://www.flickr.com/photos/filipp-ro ... 0648272161);
> Nov. 26.47, B = 10.51, V = 9.91, R = 9.29, I = 8.76 (A. Pearce, Nedlands, W.
> Australia; remotely with a 0.43-m f/7 reflector near Mayhill; position end
> figures 18s.84, 23".0); Nov. 27.436, 9.0 (Romanov); Nov. 27.841, 8.7
> (Romanov); Nov. 28.444, 8.8 (Romanov). Schmeer was unable to find any other
> brightenings of this variable in ASAS-SN Sky Patrol images back to 2012 Feb.
> 14. Schmeer provides his visual-magnitude estimates for TCP
> J04291884+4354232, obtained with a 20.3-cm reflector: Nov. 26.024, 10.2;
> 26.792, 9.5.
> Selected visual magnitudes supplied by E. O. Waagen, AAVSO: Nov. 25.938,
> 10.4 (G. Poyner, Birmingham, UK); 26.085, 10.3 (L. Shotter, Uniontown, PA,
> USA); 26.100, 10.4 (B. Granslo, Oslo, Norway); 26.193, 10.3 (M. Deconinck,
> Artignosc sur Verdon, France); 26.203, 9.9 (Deconinck); 26.773, 9.3 (H. De
> Angelis, Bromma, Sweden); 26.893, 9.4 (T. Jensen, Bornholm, Denmark); 26.967,
> 9.0 (C. Marcos da Silva, Minas Gerais, Brazil); 27.149, 9.4 (C. Chiselbrook,
> Canton, GA, USA); 27.781, 8.7 (J. Jacobsen, Frederica, Denmark); 27.856, 8.7
> (De Angelis); 27.890, 8.4 (W. Vollmann, Vienna, Austria); 27.983, 8.4 (A.
> Uhrin, Hungary). Waagen also provides the following CCD magnitudes from
> B. Harris, New Smyrna Beach, FL, USA: Nov. 27.223, I = 8.13, V = 9.06, R =
> 8.56; 27.224, B = 9.76.
> O. Garde, Chabons, France, writes that an echelle spectrogram
> obtained with a 40-cm reflector shows P-Cyg profiles on the Balmer emission
> lines; his results are posted at the following two website URLs:
> http://www.spectro-aras.com/forum/viewt ... 6&t=3D2674 and
> http://www.astrosurf.com/aras/Aras_Data ... er2020.htm.
> E. Kazarovets informs the Central Bureau that the permanent GCVS
> designation V1112 Per has been assigned to this nova.
>
>
> NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
> superseded by text appearing later in the printed IAU Circulars.
>
> (C) Copyright 2020 CBAT
> 2020 November 28 (CBET 4890) Daniel W. E. Green