[IAUC] IAUC 9203: V5588 Sgr = N Sgr 2011 No. 2; P/2011 E1 [25139-2011/04-R1]

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                                                  Circular No. 9203
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
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V5588 SAGITTARII = NOVA SAGITTARII 2011 No. 2
     Koichi Nishiyama (Kurume, Japan) and Fujio Kabashima (Miyaki,
Japan) report their discovery of a possible nova (mag 11.7) on two
40-s unfiltered CCD frames (limiting magnitude 13.2) taken around
Mar. 27.832 UT using a 105-mm f/4 camera lens (+ SBIG STL6303E
camera); they confirmed the object on five 3-s unfiltered CCD
frames (limiting magnitude 16.3) taken around Mar. 27.854 using a
Meade 200R 0.40-m f/9.8 reflector (+ SBIG STL1001E camera).  The
variable is located at R.A. = 18h10m21s.35, Decl. = -23o05'30".6
(equinox 2000.0); nothing is visible at this position on two past
survey frames taken on Mar. 17.814 (limiting mag 13.4) and 26.837
(limiting mag 13.2).  After posting on the Central Bureau's TOCP
webpage, the object was given the provisional designation PNV
J18102135-2305306.  H. Maehara, Kyoto University, reports that CCD
images of the variable obtained with a 0.25-m telescope at Kwasan
Observatory yield the following magnitudes:  Mar. 28.788, I_c =
10.17; 28.789, R_c = 11.40; 28.791, V = 12.86; 28.798, B = 14.47.
S. Kiyota (Tsukuba, Japan) writes that images obtained remotely
with a 31-cm reflector at the GRAS Observatory (located near
Officer, Victoria, Australia) on Mar. 28.670 yield magnitudes V =
12.81, R_c = 11.54, I_c = 10.38, B = 14.66, and position end
figures 21s.36, 29".9 for the nova.
     A. Arai, M. Nagashima, T. Kajikawa, and C. Naka, Koyama
Astronomical Observatory (KAO), Kyoto Sangyo University, report
that low-resolution (R about 550) spectra of PNV J18102135-2305306
were obtained at the KAO on Mar. 28.725 UT under a hazy sky.  The
spectra show prominent emission lines of H_alpha, H_beta, and Fe II
(multiplets 42, 48, 49) on a highly reddened continuum.  The FWHM
of the H_alpha emission line is about 900 km/s, and the Na D
absorption line is also seen (equivalent width about 0.7 nm).
These features suggest that the object is a classical nova that is
reddened by interstellar matter.
     E. Kazarovets, on behalf of the GCVS team, reports that the
permanent designation V5588 Sgr has been assigned to this nova.


COMET P/2011 E1 (SOHO)
     The orbits by G. V. Williams on IAUC 9201 were from 199
observations (2000-2011) and employed the following
nongravitational parameters:  A_1 = +0.00, A_2 = -0.0076.

                      (C) Copyright 2011 CBAT
2011 March 30                  (9203)            Daniel W. E. Green