Nova Oph 2015 = PNV J17291350-1846120
AAVSO Alert Notice 516April 2, 2015Nova Oph 2015 = PNV J17291350-1846120
Event: Nova Oph 2015 = PNV J17291350-1846120
Discovered by: Yukio Sakurai, Ibaraki-ken, Japan
Discovery magnitude: 12.2 unfiltered, using 180-mm f/2.8lens
Discovery date: 2015 March 29.766 UT
Coordinates: R.A. 17 29 13.58 Dec. -18 46 11.7(2000.0)
Spectra: A spectrum obtained by M. Fujii (Fujii KurosakiObservatory, Kurashiki, Okayama, Japan) on 2015 Mar 30.758 UT is consistentwith PNV J17291350-1846120 being a He/N type nova, and may be seen at http://otobs.org/FBO/fko/nova/pnv_j17291350-1846120_20150330.png.A spectrum by K. Ayani (Bisei Astronomical Observatory,Ibara, Okayama, Japan) on Mar. 30.8 UT confirmed Fujii's findings, including NIII and O I emission; it may be seen athttp://tinyurl.com/kbpoyv6(CBET 4086).
Observing recommendations: Observations of all types(visual, CCD, DSLR, spectroscopy) are strongly encouraged as this nova evolves.
Charts: Charts for Nova Oph 2015 may be created using theAAVSO Variable Star Plotter (VSP) at http://www.aavso.org/vsp.
Observations reported to the AAVSO:2105 Mar. 27.62778 UT, 13.7 TG (KBJ, R. Kaufman, Bright,VIC, Australia); 28.777, <12.5 (T. Kojima, Gunma-ken, Japan, using 150-mmf/2.8 lens, via TOCP); 29.781, 12.5 (Kojima, via TOCP); 30.4187, 12.0 V (A.Valvasori and F. Briganti, remotely with iTelescope Newton 250mm f/3,4 and CCDST-10ME, New Mexico MPC H06, via TOCP); 30.540, 12.26 V (KSI, S. Kiyota,Kamagaya, Japan, via TOCP); 30.540, 11.57 Ic (Kiyota, via TOCP); 30.639, 12.7unfiltered CCD (T. Noguchi, Chiba-ken, Japan, via TOCP); 30.771, 11.9(T.Kojima, Gunma-ken, Japan, via TOCP); 31.117, 12.0 (G. Masi, remotely using a43-cm telescope at Ceccano, Italy, CBET 4086); 31.41435, 11.947 V +/-0.005(HMB, J. Hambsch, Mol, Belgium, remotely at San Pedro de Atacama, Chile);31.41476, 11.931 V +/-0.008 (Hambsch); 31.41515, 10.878 I +/-0.025 (Hambsch);31.41544, 10.872 I +/-0.010 (Hambsch); 31.57222, 11.8 TG (Kaufman); 31.78750,11.9 (PEX, A. Pearce, Nedlands, WA, Australia); Apr. 01.077, 12.71 B (U. Munari(Astron. Obs. Padova) and S. Dallaporta (ANS Collaboration), CBET 4086); 01.077, 11.93V (Munari and Dallaporta, CBET 4086); 01.077, 11.38 Rc (Munari and Dallaporta,CBET 4086); 01.077, 10.89 Ic (Munari and Dallaporta, CBET 4086); 01.117, 12.69B(Munari and Dallaporta, CBET 4086);01.117, 11.94 V (Munari and Dallaporta, CBET 4086); 01.117, 11.39 Rc (Munariand Dallaporta, CBET 4086); 01.117, 10.90 Ic (Munari and Dallaporta, CBET4086); 01.13889, 11.7 (WKL, K. Wenzel, Grossostheim, Germany); 01.43730, 11.94V +/-0.03 (OCN, S. O'Connor, St. George, Bermuda); 01.43870, 11.30 R +/-0.08(O'Connor); 01.44010, 10.77 I +/-0.06 (O'Connor);
Submit observations: Please submit observations to theAAVSO International Database using the name NOVA OPH 2015. Once a GCVS name hasbeen assigned, please use that name.
Notes:a. Announced in IAU Central Bureau for AstronomicalTelegrams Central Bureau Electronic Telegram 4086 (Daniel W. E. Green, ed.). Assigned the name PNV J17291350-1846120 when posted tothe IAU CBAT Transient Object Confirmation Page (TOCP) at http://www.cbat.eps.harvard.edu/unconf/tocp.html
b. Sakurai reports nothing was visible at this locationon two frames taken on March 28.766 UT. S. Kiyota (Kamagaya, Japan) confirmedthe object's presence on an image obtained 2015 March30.540 remotely with 0.61-m f/6.5 CDK astrograph + FLIPL09000 CCD camera at Sierra Remote Observatory site of iTelescope.NET(Auberry, CA, USA).
c. P. Schmeer (Bischmisheim, Germany) notes a starmagnitude ~18 in the USNO-B1.0 catalogue at position end figures 13.58s,13.7".
d. Position end figures- S. Kiyota (Kamagaya, Japan), 13.42s, 13.85" - T. Noguchi (Chiba-ken, Japan), 13.42s, 13.9" - S. Nakano (Sumoto, Japan), measurement of Sakurai'simage, 13.43s, 14.0" (CBET 4086)- G. Masi (remotely using a 43-cm telescope at Ceccano,Italy), 13.41s, 13.6" (CBET 4086) e. Images:- Rob Kaufman (Bright, Victoria, Australia), 2015 March27.62778 UT, http://i727.photobucket.com/albums/ww271/Rob_Kau/PNV%20J17291350-1846120%2027%20Mar%202015b.jpg~original- Y. Sakurai (Ibaraki-ken, Japan), 2015 March 29.766 UT, http://www.oaa.gr.jp/~oaacs/image/PnovaOph.jpg- (A. Valvasori and F. Briganti, remotely with iTelescope,New Mexico MPC H06), 2015 March 30.4187, https://www.flickr.com/photos/128758169@N05/16963013056/- S. Kiyota (Kamagaya, Japan), 2015 March 30.540, http://meineko.sakura.ne.jp/ccd/PNV_J17291350-1846120.jpg- T. Noguchi (Chiba-ken, Japan), 2015 March 30.639, http://park8.wakwak.com/~ngc/images/PNVinOph_20150330.jpg
Congratulations to Yukio Sakurai on his latest discovery!
This AAVSO Alert Notice was compiled by Elizabeth O.Waagen.
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