September 27, 2016
Event: Nova in Lupus [V407 Lup]
Discovered by: All Sky Automated Survey for SuperNovae (ASAS-SN) (K. Stanek (Ohio State University) et al., ATel #9538; reported to CBAT via J. Strader (Michigan State University))
Discovery magnitude: 9.11 V +/- 0.01, using ASAS-SN robotic 14-cm telescopes
Discovery date: 2016 September 24.010 UT
Coordinates (2000.0): R.A. 15 29 01.82 Dec. -44 49 40.9
Spectra: A spectrum obtained on 2016 September 24.43 UT by T. Bohlsen (Armidale, NSW, Australia, using a LISA spectrograph on a C11 SCT R=1500 but very noisy due to passing cloud) shows Halpha emission, indicating that this object is a nova. His spectrum may be viewed at: http://www.astrosurf.com/aras/Aras_DataBase/Novae/2016_NovaLup2016.htm
Observing recommendations: Observations of all types (visual, CCD, DSLR, spectroscopy) and all bands as instrumentation permits are strongly encouraged as this bright nova evolves.
Dr. Laura Chomiuk (Michigan State University) posted to the AAVSO Novae forum that she is "...working with a collaboration of observers and theorists to test a recent theoretical prediction of Ken Shen's---that novae should show fast periodic oscillations in their optical light curves, if gravity waves help expel the envelope." She asks if any observer with "...access to a high-speed photometer (say a photo-multiplier tube)...could observe this target for an hour or two. Even exposure times as long as 1 second would be useful, although several exposures per second would be better." If you have access to a high-speed photometer, please contact E. Waagen (eowaagen@aavso) for details on reporting these data.
Observations reported to the AAVSO:
2016 Sep. 20.012 UT, <17.5 V (ASAS-SN, via Strader in CBET 4322);
24.010, 9.11 V +/-0.01 (ASAS-SN, discovery image, via Strader in CBET 4322);
24.43130, 6.826 V +./0.075 (T. Bohlsen, Armidale, NSW, Australia);
24.7, 6.5: unfiltered CCD (E. Guido, using a 0.32-m f/9 reflector+CCD + f7 focal reducer of iTelescope network (MPC Code Q62 - Siding spring, Australia, via TOCP page);
24.743, 6.4 (1-m LCOGT telescope at Sutherland, South Africa, via Strader in CBET 4322);
25.07800, 6.32 (S. Otero, Buenos Aires, Argentina);
25.40280, 5.6 (R. Stubbings, Tetoora Road, Vic, Australia);
25.723, 6.3 (LCOGT, via Strader in CBET 4322);
25.95417, 6.5 (A. Amorim, Florianopolis, Brazil);
25.96700, 6.84 (Otero);
25.98611, 6.8 (G. Ballan, Rosario, Argentina);
26.01667, 6.7 (Amorim);
26.39110, 6.62 CV +/-0.05 (S. O'Connor, St. George, Bermuda);
26.42181, 6.7 (D. Benn, Klemzig, S. Australia);
26.42458, 5.9 R +/-0.1 (W. Clark, Bannister Green, Felsted, Essex, UK);
26.91667, 7.1 (Amorim);
26.96700, 6.92 (Otero);
26.97917, 6.9 (Ballan);
27.49839, 7.2 (Benn);
Charts: Charts for Nova Lup 2016 may be created using the AAVSO Variable Star Plotter (VSP). Be sure to include the spaces in the name as shown.
Submit observations: Please submit observations to the AAVSO International Database using the name NOVA LUP 2016. Be sure to include spaces in name as shown.
a. Announced in IAU Central Bureau for Astronomical Telegrams Central Bureau Electronic Telegram 4322 (Daniel W. E. Green, ed.). Designated PNV J15290182-4449409 when when posted to the IAU CBAT Transient Object Confirmation Page (TOCP) at http://www.cbat.eps.harvard.edu/unconf/tocp.html. Some of the information in this Alert Notice is taken from IAU CBET 4322 or ATel #9538 (K. Stanek (OSU) et al.; http://www.astronomerstelegram.org/?read=9538), #9539 (K. Stanek; coordinates correction), and #9550 (Ping Chen (KIAA-PKU) et al.).
b. E. Guido (2016 Sep. 27.4 UT, remote observation (see above)), provides position end figures 01.76s, 39.7". His animation showing a comparison between his image and the archive POSS2/UKSTU Red plate (1992-07-30) is available at: http://gph.is/2dgVjR6 .
c. P. Schmeer (Bischmisheim, Germany), reports a progenitor candidate (19 mag) 1" from the reported position of the nova:
- GSC 2.3 S9CP023399, position end figures (J2000.0) 01.824s, 39.51"; F = 18.81, j = 21.62 mag.
- Gaia DR1 #5999691733347769472, 01.771s, 39.99"; G = 18.950 mag.
Congratulations to K. Stanek and colleagues at ASAS-SN on their discovery!
This AAVSO Alert Notice was compiled by Elizabeth O. Waagen.
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