Alert Notice 508: Nova Scorpii 2015 == PNV J17032620-3504140 [V1535 Sco]

February 17, 2015

Event: Nova Scorpii 2015 = PNV J17032620-3504140  [V1535 Sco]

Discovered by: Tadashi Kojima, Gunma-ken, Japan

Discovery magnitude: unfiltered DSLR magnitude 8.1, using a 150-mm f/2.8 lens and digital camera

Discovery date: 2015 February 11.837 UT

Coordinates: RA: 17 03 26.18 , Decl: -35 04 17.6

Spectra: Echelle spectra by Frederick Walter (Stony Brook University) taken on 2015 February 13.40 and reported in Astronomer's Telegram #7060 indicate the presence of strong H-alpha with FWHM of 2000 km/s, along with several other emission features.  See ATel #7060 for details.  

Observing recommendations: Observations of all types (visual, CCD, DSLR, spectroscopy) are strongly encouraged in following the evolution of this nova.

Charts: Charts for Nova Sco 2015 may be created using the AAVSO Variable Star Plotter (VSP) at .

Observations reported to the AAVSO as of 2015 Feb 17.8:

2015 Feb 12.31389, vis=9.5, A. Amorim (AAX, Brazil)
12.32500, vis=9.2, L. Camargo da Silva (CLUB, Brazil)
12.40264, V=9.328, J. Hambsch (HMB, Belgium)
12.40277, V=9.383, J. Hambsch (HMB, Belgium)
12.67917, TG=9.4, R. Kaufman (KBJ, Australia)
13.40877, V=9.380, J. Hambsch (HMB, Belgium)
13.40891, V=9.489, J. Hambsch (HMB, Belgium)
13.40921, B=10.365, J. Hambsch (HMB, Belgium)
13.40944, B=10.427, J. Hambsch (HMB, Belgium)
13.46250, vis=9.5, L. Shotter (SLH, United States)
13.66875, vis=9.8, C. Wyatt (WCG, Australia)
13.71065, V=9.498, R. Weir (WRCA, United States)
13.72648, V=9.517, R. Weir (WRCA, United States)
14.40923, V=9.667, J. Hambsch (HMB, Belgium)
14.40936, V=9.651, J. Hambsch (HMB, Belgium)
14.40966, B=10.576, J. Hambsch (HMB, Belgium)
14.40989, B=10.557, J. Hambsch (HMB, Belgium)
14.82917, vis=10.2, A. Pearce (PEX, Australia)
15.40943, V=9.729, J. Hambsch (HMB, Belgium)
15.40957, V=9.753, J. Hambsch (HMB, Belgium)
15.40987, B=10.797, J. Hambsch (HMB, Belgium)
15.41010, B=10.796, J. Hambsch (HMB, Belgium)
15.71086, V=9.95, P. Starr (SPET, Australia; 10 observations)
15.72121, B=10.8075, P. Starr (SPET, Australia)
15.72241, R=9.0199, P. Starr (SPET, Australia)
15.72368, I=8.2942, P. Starr (SPET, Australia)
16.30833, vis=10.1, L. Camargo da Silva (CLUB, Brazil)
16.31250, vis=10.2, A. Amorim (AAX, Brazil)
16.40465, V=9.813, J. Hambsch (HMB, Belgium)
16.40479, V=9.988, J. Hambsch (HMB, Belgium)
16.40509, B=10.949, J. Hambsch (HMB, Belgium)
16.40532, B=10.961, J. Hambsch (HMB, Belgium)
16.72662, V=10.080, R. Weir (WRCA, United States)
16.80694, vis=10.4, A. Pearce (PEX, United States)
16.81687, V=10.086, M. Heald (HMH, United States)
16.81833, B=10.864, M. Heald (HMH, United States)
16.81979, I=8.241, M. Heald (HMH, United States)
17.40549, V=10.152, J. Hambsch (HMB, Belgium)
17.40562, V=10.116, J. Hambsch (HMB, Belgium)
17.40592, B=11.123, J. Hambsch (HMB, Belgium)
17.40615, B=11.141, J. Hambsch (HMB, Belgium)
17.66066, V=10.184, R. Weir (WRCA, United States)
17.78983, V=10.331, R. Weir (WRCA, United States)

Submit observations: Please submit observations to the AAVSO International Database using the name NOVA SCO 2015. Once a GCVS name has been assigned, please use that name.

Congratulations to Tadashi Kojima on his discovery!

This AAVSO Alert Notice was prepared by M. Templeton.


Information on submitting observations to the AAVSO may be found at:


An Alert Notice archive is available at the following URL:

Subscribing and Unsubscribing may be done at the following URL:


Please support the AAVSO and its mission -- Join or donate today: