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Alert Notice 653: Nova in Norma: N Nor 2018 = PNV J16143400-5330050

October 26, 2018

Event: Nova in Norma - N Nor 2018 = PNV J16143400-5330050

Discovered by: Robert Kaufman (Bright, Victoria, Australia)

Discovery magnitude: 10.5 (DSLR green channel, approximately visual band)

Discovery date: 2018 October 13.414 UT

Coordinates (2000.0): R.A. 16 14 32.91    Decl. -53 30 15.2   (from VSX)

Spectra: Spectroscopy obtained by E. Aydi et al. (ATel #12142) on 2018 Oct. 23.03 UT using the Goodman spectrograph on the SOAR telescope indicates that N Nor 2018 is a classical Fe II nova, possibly in the transition phase.

S. Kiyota (Kamagaya, Japan, via CBET 4568) reports that a low-resolution spectrogram obtained 2018 Oct. 15.382 UT showed strong H-alpha emission.

Observing recommendations: Observations of all types (visual, CCD, DSLR, PEP, spectroscopy) and multiple bands as instrumentation permits are strongly encouraged as the nova evolves.

Observations reported to the AAVSO:
2018 Oct. 12.422 UT, <12.5: (R. Kaufman, CBET 4568);
13.97435, 11.780 B +/-0.011 (F.-J. Hambsch, Mol, Belgium);
13.97475, 11.779 B +/-0.010 (Hambsch);
13.97508, 10.156 V +/-0.009 (Hambsch);
13.97530, 10.170 V +/-0.009 (Hambsch);
13.97551, 8.132 I +/-0.036 (Hambsch);
13.97566, 8.093 I +/-0.031 (Hambsch);
14.431, 10.5 (P. Camilleri, Katherine, NT, Australia, CBET 4568);
15.382, 12.23 B (S. Kiyota, Kamagaya, Japan, using iTelescope 0.43-m f/6.8 CDK astrograph at Siding Spring Obs., CBET 4568);
15.382, 10.96 V (Kiyota, CBET 4568);
15.382, 9.67 Rc (Kiyota, CBET 4568);
15.382, 8.70 Ic (Kiyota, CBET 4568);
15.3920, 8.374 I +/-0.125 (W. Goltz, Cranbrook, QLD, Australia);
15.4875, 11.4 (A. Pearce, Nedlands, WA, Australia);
15.4950, 11.0 (N. Brown, Two Rocks, WA, Australia);
16.48472, 11.7 (Pearce);
17.535, 12.1 (Brown);
19.517, 12.7 (Brown);
21.385, 14.02 B +/-0.022 (Pearce);
21.387, 12.89 V +/-0.006 (Pearce);
22.5000, 13.2 (Brown);
    
Charts: Charts with a comparison star sequence for N Nor 2018 may be created using the AAVSO Variable Star Plotter (VSP).

Submit observations: Please submit observations to the AAVSO International Database using the name N NOR 2018. When a GCVS name is announced in an IAU Circular or CBET, please use that name.

AAVSO Forums: N Nor 2018 is the topic of the AAVSO Time Sensitive Alerts forum thread
https://www.aavso.org/pnv-j16143400-5330050-possible-nova-105-mag-norma-discovered-rob-kaufman

and the AAVSO Novae forum thread
https://www.aavso.org/pnv-j16143400-5330050-possible-nova-105-mag-norma-discovered-rob-kaufman-0

Notes:
a. Designated PNV J16143400-5330050 when posted to the IAU Central Bureau for Astronomical Telegrams Transient Object Confirmation Page (TOCP). Most information in this Alert Notice is taken from CBET 4568.

b. Kaufman reports that nothing was visible down to magnitude 15-16 at this position in the ASAS-SN database in the prior 40 days.

c. P. Schmeer (Saarbruecken-Bischmisheim, Germany) reports that an object designated VVV J161432.86-533014.38 is located 0.6" from Kiyota's position (position end figures 32.86s, 14.4"; magnitudes J=18.8, K_s=17.3).

d. Position end figures
- S. Kiyota (2018 Oct. 15.382 UT, via CBET 4568): 32.93s, 14.6"

e. Images
- R. Kaufman (2018 Oct. 13.414 UT, discovery image: https://tinyurl.com/ydcm8uzk

Congratulations to Rob Kaufman on his latest discovery!

This AAVSO Alert Notice was compiled by Elizabeth O. Waagen.
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