ALERT OSSERVATIVI CATACLISMICHE E NOVAE

Da Sezione Stelle Variabili - Unione Astrofili Italiani.

(Differenze fra le revisioni)
(→Nova Cephei 2013 = PNV J23080471+6046521)
 
(12 revisioni intermedie non mostrate.)
Riga 1: Riga 1:
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= Possibile Nova nel Delfino  =
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October 14, 2015
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Si ha notizia in queste ore di una possibile nova nel Deldino.Poche ore fa dagli Usa veniva data di magnitudine 5.5.<br>Al momento non esiste una allerta AAVSO ma nel link sottostante si trova una cartina di riferimento con la notizia.Per ora mancano altri dati.<br>Riporto di seguito la news sul sito CV curato da Mike Simonsen
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Riporto qui Alert AAVSO per seconda Nova in Ofiuco
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<br>
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risulta di 12.1 non filtrata al momento della scoperta
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"POSSIBLE BRIGHT NOVA IN DELPHINUS<br>FROM CBAT <br>Transient Object Followup Reports
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in V siamo sulla 13 a qualche giorno fa
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PNV J20233073+2046041
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fare riferimento ad &nbsp;www.aavso.org alert 531
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PNV J20233073+2046041 2013 08 14.5843* 20 23 30.73 +20 46 04.1 6.8 U Del I 0
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per le carte sempre su aavso&nbsp;
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2013 08 14.584
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i dati sottoporli ad aavso come&nbsp;NOVA OPH 2015 NO. 2 rispettando gli spazi visto che non ha ancora una designazione definitiva
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Discovered by Koichi Itagaki, Yamagata, Japan, using 0.18-m reflector + unfiltered CCD. This Nova was confirmed on the frames taken on August 14.750 UT using 0.60-m f/5.7 reflector + unfiltered CCD after discovery. Then CCD magnitude is 6.3. Also nothing is visible at this location on his past frames (limiting mag.= 13.0) taken on 2013 August 13.565 UT.
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sono richieste osservazioni di qualsiasi tipo durante la fase di evoluzione della nova  
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2013 08 14.584
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image&nbsp;: http://www.k-itagaki.jp/images/pnv-del.jpg
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2013 08 14.80180
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Sergey Shurpakov confirms this object at the observatory C36, Belarus, with 0.20-m/4.0 Newtonian reflector + CCD(37.73'x 28.19').Astrometry: 20h23m30s.95 +20deg46'05".6 Photometry: R = 6.4
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http://www.universetoday.com/104103/bright-new-nova-in-delphinus-you-can-see-it-tonight-with-binoculars/<br>
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<br>  
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riporto anche un report postato da Nello Ruocco ed Ernesto Guido:  
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Event: Nova Oph 2015 No. 2 = TCP J17344775-2409042
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Following the posting on the Central Bureau's Transient Object Confirmation Page about a possible Bright Nova in Del (TOCP Designation: PNV J20233073+2046041) we performed some follow-up of this object through a 0.43-m f/6.8 astrograph + CCD from MPC Code I89 (iTelescope network - Nerpio, Spain) and through a 0.25-m f/6.3 Schmidt-Cassegrain + CCD from MPC code C82 (Sorrento, Italy).
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On our images taken on August 14.8, 2013 from MPC I89 we can confirm the presence of an optical counterpart with unfiltered CCD magnitude 6.8 at coordinates:
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R.A. = 20 23 30.72, Decl.= +20 46 03.4
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(equinox 2000.0; UCAC-3 catalogue reference stars).<br> <br>On our images taken on August 14.8, 2013 from MPC C82 we can confirm the presence of an optical counterpart with unfiltered CCD magnitude 6.9 and R-Filtered magnitude 6.1 at coordinates:
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R.A. = 20 23 30.68, Decl.= +20 46 03.7
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(equinox 2000.0; CMC-14 catalogue reference stars)."
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Vi rimando al link completo dove c'e' anche un'animazione fatta da Ernesto
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http://remanzacco.blogspot.it/2013/08/possible-bright-nova-in-delphinus.html<br>
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= GR Ori in super-outburst  =
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Independent discovery by: <br> - Koichi Nishiyama (Kurume, Japan) and Fujio Kabashima (Miyaki, Japan)<br> - Shigehisa Fujikawa (Kan'onji, Kagawa, Japan)
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Rod Stubbings dall'Australia riporta un outburst della sospetta vecchia nova (Nova Ori 1916),stimandola visualmente di magnitudine 13.0 a Febbraio 11.476 UT (JD 2456334.976).Questa osservazione è stata confermata da Stephen Howell (New Zealand),che ha ugualmente riportato la stella a magnitudine 13.0 Febbraio 11.461.Mike Simonsen (AAVSO) fa notare che la sospetta progenitrice di questa stella ha una magnitudine intorno alla 22.8 nella Sloan Digital Sky Survey,suggerendo un ampio outburst di 8-10 magnitudini,e che la stella potrebbe essere una WZ Sge dwarf nova piuttosto che una nova classica o ricorrente.La maggioranza delle osservazioni di questa stella sono visuali e il comportamento degli outburst è poco studiato.Naturalmente si sono notati aumenti di luminosità nei decenni passati.<br>Osservazioni di GR Ori,specialmente time series in V sono richieste ed aiuterebbero a comprendere meglio questo oggetto.  
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Discovery magnitude:<br> - Nishiyama and Kabashima: 11.8 unfiltered (CCD, using a 135-mm f/4 camera lens (+FLI 09000 camera))<br> - Fujikawa: 12.1 unfiltered (CCD using a MINOLTA F 3.5 f 120mm lens)
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GR Ori si trova:<br>R.A. 05 21 34.98  Dec +01 10 10.2  (2000.0)
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Discovery date:<br> - Nishiyama and Kabashima: 2015 October 11.4129 UT<br> - Fujikawa: 2015 Oct 11.41474 UT
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La sequenza e le stelle di confronto sono state aggiornate e si trovano sul sito AAVSO http://www.aavso.org/vsp
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Coordinates (2000.0): R.A. 17 34 47.75 Dec -24 09 04.2 (Nishiyama and Kabashima, in VSX)
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Per chi disponesse di un codice AAVSO le osservazioni vanno inviate come GR Ori
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Spectra: A low resolution spectrum obtained at Van Vleck Observatory by C. Littlefield (Wesleyan University) and P. Garnavich (Notre Dame) on 2015 October 11.99 UT across an airmass range of 3.6-4.5, which yielded noisy data, indicate the nova to be an Fe II-type classical nova (ATel #8156). Spectra by M. Fujii (Kurashiki, Okayama, Japan) obtained on 2015 October 12.421 UT at Fujii Kurosaki Observatory indicate a highly reddened nova (CBET 4150). His spectrogram is posted at http://otobs.org/FBO/etc/tcp_oph.htm.
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qui la alert AAVSO&nbsp;http://www.aavso.org/aavso-special-notice-334
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Observing recommendations: This nova is faint, but observations of all types (visual, CCD, DSLR, spectroscopy) as instrumentation permits are strongly encouraged as this nova evolves.  
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[[File:GROriField.jpg]]
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Charts: Charts for Nova Oph 2015 No. 2 may be created using the AAVSO Variable Star Plotter (VSP). Be sure to include spaces in the name as shown.<br>
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22:05, 12 feb 2013 (UTC)
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Oct. 7.405, &lt;13.4 (Nishiyama and Kabashima);<br>11.394, 12.0 unfiltered (T. Kojima, Tsumagoi, Gunma-ken, Japan, pre-discovery observation);<br>11.490, 11.7 unfiltered CCD (S. Fujikawa, Kan'onji, Kagawa, Japan, confirming image);<br>11.721, 11.2 CR (G. Masi, remotely using the 17"-f/6.8 robotic unit part of the Virtual Telescope Project facility at Bellatrix Astronomical Observatory,Ceccano, Italy);<br>12.06870 UT, 9.90 I +/-0.07 (S. O'Connor, St. George, Bermuda);<br>12.07110, 11.89 V +/-0.03 (O'Connor);<br>12.07380, 11.70 CV +/-0.04 (O'Connor);<br>12.0900, 13.65 B (S. Kiyota, Kamagaya, Japan, remotely using 0.50-m f/4.5 CDK astrograph + FLI-PL11002M CCD f iTelescope.NET at Mayhill, NM, USA);<br>12.0900, 12.04 V (Kiyota);<br>12.0900, 11.12 Rc (Kiyota);<br>12.0900, 10.09 Ic (Kiyota);<br>13.38560, 11.56 R +/-0.05 (O'Connor);<br>13.407, 12.9 V (T. Yusa, Osaki, Japan, remotely using the 0.43-m f/6.8 astrograph + CCD(FLI Proline 16803)at the iTelescopeNET, Siding Spring, Australia).<br>14.05870, 10.4 I +/-0.1 (O'Connor);<br>14.06100, 13.33 V +/-0.08 (O'Connor);<br>14.06350, 12.82 CV +/-V0.03 (O'Connor);<br>14.06944, &lt;11.2 (S. Aguirre, Hermosillo, Mexico);<br>14.37700, 10.68 I +/-0.05 (O'Connor);<br>14.37840, 12.05 R +/-0.05 (O'Connor);<br>14.37990, 13.32 V +/-0.02 (O'Connor);<br>14.38120, 14.00 TB +/-0.14 (O'Connor);<br>14.38120, 14.87 TB +/-0.04 (O'Connor);<br>14.38250, 13.00 CV +/-0.02 (O'Connor);

Versione corrente delle 11:48, 15 ott 2015

October 14, 2015

Riporto qui Alert AAVSO per seconda Nova in Ofiuco

risulta di 12.1 non filtrata al momento della scoperta

in V siamo sulla 13 a qualche giorno fa

fare riferimento ad  www.aavso.org alert 531

per le carte sempre su aavso 

i dati sottoporli ad aavso come NOVA OPH 2015 NO. 2 rispettando gli spazi visto che non ha ancora una designazione definitiva

sono richieste osservazioni di qualsiasi tipo durante la fase di evoluzione della nova


Event: Nova Oph 2015 No. 2 = TCP J17344775-2409042

Independent discovery by:
- Koichi Nishiyama (Kurume, Japan) and Fujio Kabashima (Miyaki, Japan)
- Shigehisa Fujikawa (Kan'onji, Kagawa, Japan)

Discovery magnitude:
- Nishiyama and Kabashima: 11.8 unfiltered (CCD, using a 135-mm f/4 camera lens (+FLI 09000 camera))
- Fujikawa: 12.1 unfiltered (CCD using a MINOLTA F 3.5 f 120mm lens)

Discovery date:
- Nishiyama and Kabashima: 2015 October 11.4129 UT
- Fujikawa: 2015 Oct 11.41474 UT

Coordinates (2000.0): R.A. 17 34 47.75 Dec -24 09 04.2 (Nishiyama and Kabashima, in VSX)

Spectra: A low resolution spectrum obtained at Van Vleck Observatory by C. Littlefield (Wesleyan University) and P. Garnavich (Notre Dame) on 2015 October 11.99 UT across an airmass range of 3.6-4.5, which yielded noisy data, indicate the nova to be an Fe II-type classical nova (ATel #8156). Spectra by M. Fujii (Kurashiki, Okayama, Japan) obtained on 2015 October 12.421 UT at Fujii Kurosaki Observatory indicate a highly reddened nova (CBET 4150). His spectrogram is posted at http://otobs.org/FBO/etc/tcp_oph.htm.

Observing recommendations: This nova is faint, but observations of all types (visual, CCD, DSLR, spectroscopy) as instrumentation permits are strongly encouraged as this nova evolves.

Charts: Charts for Nova Oph 2015 No. 2 may be created using the AAVSO Variable Star Plotter (VSP). Be sure to include spaces in the name as shown.

Oct. 7.405, <13.4 (Nishiyama and Kabashima);
11.394, 12.0 unfiltered (T. Kojima, Tsumagoi, Gunma-ken, Japan, pre-discovery observation);
11.490, 11.7 unfiltered CCD (S. Fujikawa, Kan'onji, Kagawa, Japan, confirming image);
11.721, 11.2 CR (G. Masi, remotely using the 17"-f/6.8 robotic unit part of the Virtual Telescope Project facility at Bellatrix Astronomical Observatory,Ceccano, Italy);
12.06870 UT, 9.90 I +/-0.07 (S. O'Connor, St. George, Bermuda);
12.07110, 11.89 V +/-0.03 (O'Connor);
12.07380, 11.70 CV +/-0.04 (O'Connor);
12.0900, 13.65 B (S. Kiyota, Kamagaya, Japan, remotely using 0.50-m f/4.5 CDK astrograph + FLI-PL11002M CCD f iTelescope.NET at Mayhill, NM, USA);
12.0900, 12.04 V (Kiyota);
12.0900, 11.12 Rc (Kiyota);
12.0900, 10.09 Ic (Kiyota);
13.38560, 11.56 R +/-0.05 (O'Connor);
13.407, 12.9 V (T. Yusa, Osaki, Japan, remotely using the 0.43-m f/6.8 astrograph + CCD(FLI Proline 16803)at the iTelescopeNET, Siding Spring, Australia).
14.05870, 10.4 I +/-0.1 (O'Connor);
14.06100, 13.33 V +/-0.08 (O'Connor);
14.06350, 12.82 CV +/-V0.03 (O'Connor);
14.06944, <11.2 (S. Aguirre, Hermosillo, Mexico);
14.37700, 10.68 I +/-0.05 (O'Connor);
14.37840, 12.05 R +/-0.05 (O'Connor);
14.37990, 13.32 V +/-0.02 (O'Connor);
14.38120, 14.00 TB +/-0.14 (O'Connor);
14.38120, 14.87 TB +/-0.04 (O'Connor);
14.38250, 13.00 CV +/-0.02 (O'Connor);

Estratto da "http://stellevariabili.uai.it/index.php?title=ALERT_OSSERVATIVI_CATACLISMICHE_E_NOVAE"
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