[telescoperos] AAVSO Alert Notice 421: Nova in Scorpius (V1311 Sco = N Sco 2010 No. 2)
- From: Francisco Mardones <observ_elblanco@xxxxxxxxxxx>
- To: <telescoperos@xxxxxxxxxxxxx>
- Date: Wed, 5 May 2010 09:28:01 -0400
Para a los que les interese,
Saludos
Pancho Patagòn
> Date: Wed, 5 May 2010 09:13:13 -0400
> To: observ_elblanco@xxxxxxxxxxx
> Subject: AAVSO Alert Notice 421: Nova in Scorpius (V1311 Sco = N Sco 2010 No.
> 2)
> From: aavso@xxxxxxxxx
>
>
> AAVSO Alert Notice 421
>
> Nova in Scorpius (V1311 Sco = N Sco 2010 No. 2)
> May 5, 2010
>
> Event: Nova in Scorpius (V1311 Sco = Nova Sco 2010 No. 2)
>
> Discovered Idependently By:
> - Koichi Nishiyama, Kurume, Japan, and Fujio Kabashima, Miyaki, Japan
> - Hideo Nishimura, Miyawaki, Kakegawa, Shizuoka-ken, Japan (reported
> via S. Nakano, Sumoto, Japan, in CBET 2262)
> - Tadashi Kojima, Tsumagoi, Agatsuma-gun, Gunma-ken, Japan (reported
> via S. Nakano, Sumoto, Japan, in CBET 2262)
> - Yukio Sakurai, Mito, Ibaraki-ken, Japan (reported via S. Nakano,
> Sumoto, Japan, in CBET 2265)
>
> Discovery Date:
> - Nishiyama and Kabashima, Apr. 25.788 UT using a 105-mm f/4 camera
> lens (+ SBIG STL6303E camera)
> - Nishimura, Apr. 25.763 UT
> - Kojima, Apr. 25.738 UT
> - Sakurai, Apr. 25.734 UT
>
> Discovery Magnitude:
> - Nishiyama and Kabashima, unfiltered CCD magnitude 8.6
> - Nishimura, unfiltered CCD magnitude 8.3
> - Kojima, unfiltered CCD magnitude 8.8
> - Sakurai, unfiltered CCD magnitude 8.8
>
> Position: R.A = 16:55:13.16, Decl. = -38:03:46.9 (equinox 2000.0)
> from confirming unfiltered CCD frames taken by Nishiyama and
> Kabashima around Apr. 25.796
> - Nishimura, position end figures 12.96s, 48.1"
> - Kojima, position end figures 13.46s, 44.7" +/- 5"
> - Sakurai, position end figures 13.07s, 45.3", measured by Nakano
>
> Spectra: Low-resolution spectra taken by H. Koberger, Vilaflor,
> Tenerife, and W. Vollmann, Vienna, Austria, on Apr. 27.199, and
> by H. Maehara, Kwasan Observatory, Kyoto University, Japan, on
> Apr. 29.704 UT, confirm a classical nova. Maehara's spectrum has
> been posted at the following website URL:
> http://www.kwasan.kyoto-u.ac.jp/~maehara/novae/SCOnova2010no2_20100429.png.
> A low-resolution spectrum by K. Kinugasa, H. Takahashi, and O.
> Hashimoto, Gunma Astronomical Observatory, China, suggests a He/N
> nova in decline; it is posted at http://tinyurl.com/37r6yhj.
>
> Observations Reported to the AAVSO:
> APR 26.307, 8.55 V, S. Kiyota, Tsukuba, Japan (via IAU Circular 9142);
> 26.308, 7.75 Rc, Kiyota;
> 26.309, 6.92 Ic, Kiyota;
> 26.310, 10.18 B, Kiyota;
> 26.4, 8.2, E. Guido and G. Sostero, Mayhill, NM site (via Circular
> 9142);
> 26.4514 UT, 9.3, R. Kaufman, Bright, Victoria, Australia;
> 27.1236, 9.6, G. Beltran, Cochabamba, Bolivia;
> 27.1237, 9.9, S. Raul, Montevideo, Uruguay;
> 27.1549, 11.0, A. Amorim, Florianopolis, Brazil;
> 27.21, 10.3, H. Koberger and W. Vollmann, Tenerife (via Circular
> 9142);
> 27.3918, 10.09 V, S. Dvorak, Clermont, FL;
> 27.4556, 10.2, A. Salvador, Hermosillo, Mexico;
> 27.6000, 10.2, M. Linnolt, Ocean View, HI;
> 27.692, 9.8, Y. Maeda, Nagasaki, Japan (via Maehara in CBET 2265);
> 28.0938, 10.4, Beltran;
> 28.3778, 10.9, L. Shotter, Uniontown, PA;
> 28.4451, 10.5, Salvador;
> 28.5137, 11.666 B +/-0.016, T. Bohlsen, Armidale, NSW, Australia;
> 28.5146, 10.610 V +/-0.006, Bohlsen;
> 28.5190, 9.065 R +/-0.007, Bohlsen;
> 28.5201, 8.355 I +/-0.008, Bohlsen;
> 29.5092, 11.966 B +/-0.018, Bohlsen;
> 29.5108, 10.96 V +/-0.007, Bohlsen;
> 29.5135, 9.273 R +/-0.007, Bohlsen;
> 29.5141, 8.667 I +/-0.008, Bohlsen;
> 29.680, 8.77 Ic, H. Maehara, Kwasan Observatory, Kyoto University
> (via CBET 2265);
> 29.681, 9.45 Rc, Maehara;
> 29.683, 11.21 V, Maehara;
> 29.685, 12.03 B, Maehara.
> MAY 02.0104, 11.9, Amorim;
> 04.4243, 12.9, Linnolt;
> 04.5076, <11.8, H. Matsuyama, Kanimbla, Queensland, Australia;
>
> Charts: Finder charts for V1311 Sco may be plotted by entering
> the coordinates above into VSP:
> http://www.aavso.org/observing/charts/vsp/
>
> Reporting Observations: Please report all observations to the
> AAVSO as V1311 SCO. N Sco 2010 No. 2, AUID 000-BJV-296, or
> VSX J165513.1-380346 may also be used, but V1311 SCO is preferred.
>
> Notes:
> a. Nothing was visible on Nishiyama and Kabashima's survey
> frames taken on Apr. 23.786 down to magnitude 12.9 and on Apr.
> 24.757 down to magnitude 13.2, or on a Digitized Sky
> Survey plate from 1995 June 4 down to red magnitude 18.0.
> Nothing was visible down to magnitude 10.2 on a frame taken by
> Sakurai on Apr. 24.74.
>
> b. E. Guido and G. Sostero report position end figures
> 13.17s, 47.8" on CCD images obtained Apr. 26.4 UT remotely
> with a 0.25-m reflector from GRAS Observatory near Mayhill,
> NM.
>
> b. E. V. Kazarovets, Russian Academy of Sciences, reports that
> the GCVS team has assigned Nova Sco 2010 No. 2 the name V1311 Sco.
>
> c. Initially announced in CBET 2262 (Green, ed.) and AAVSO
> Special Notice No. 207 (Elizabeth O. Waagen), with additional
> information in CBET 2265 (Green) and IAU Circular 9142 (Green).
> ed.). Except for the observations reported to the AAVSO, the
> information in this Alert Notice is taken from the IAU CBETs
> and Circular).
>
> Congratulations to Koichi Nishiyama and Fujio Kabashima on their
> latest discovery, and to Hideo Nishimura, Tadashi Kojima, and
> Yukio Sakurai on their independent discoveries!
>
> Good observing,
>
> Elizabeth O. Waagen
> Senior Technical Assistant
>
>
> -------------------------------------------
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>
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>
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>
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>
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>
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