[IAUC] IAUC 9271: (93); V2659 Cyg = N Cyg 2014 = PNV J20214234+3103296 y [25139-2012/04-R1]

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Mar Sep 23 19:36:49 ART 2014


                                                  Circular No. 9271
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
New postal address:  Hoffman Lab 209; Harvard University;
 20 Oxford St.; Cambridge, MA  02138; U.S.A.
CBATIAU en EPS.HARVARD.EDU           ISSN 0081-0304
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network


(93) MINERVA AND ITS SATELLITES
     The Committee on Small Bodies Nomenclature has approved names
for the newly discovered satellites of minor planet (93) Minerva
(cf. IAUC 9069):  the name "Aegis" has been given to (93) Minerva I
= S/2009 (93) 1, and the name "Gorgoneion" has been given to (93)
Minerva II = S/2009 (93) 2; the name citations were published on
MPC 86284.
     F. Vachier, J. Berthier, and B. Carry, Mecanique Celeste et de
Calcul des Ephemerides (IMCCE); and colleagues associated with the
International Occultation Timing Association (S. Messner, D. Dunham,
J. Dunham, P. D. Maley, C. McPartlin, S. Preston, and B. Timerson)
report the successful observation of the stellar occultation of TYC
1822-00535-1 (mag 10.0) by the triple-minor-planet system (93)
Minerva on Sept. 6.33784 UTC.  Nine positive chords of the
occultation by the primary, lasting between 8.08 and 16.80 s, have
been reported, which confirms the value of the equivalent diameter
of 154 +/- 6 km determined by Marchis et al. (2013, Icarus 224,
178).  One observation by Messner appears to be a brief, 0.6-s
stellar occultation by one moonlet of the system, perhaps due to
the inner satellite II (Gorgoneion), which would imply that the
satellite's size is about 6.5 km across the chord, and thus that it
is either larger than the estimated 3.2 +/- 0.9 km (Marchis et al.)
or significantly elongated.  The derived relative apparent position
of the moonlet is 0".128(1) west and 0".106(1) south of the primary
on 2014 Sept. 6.33767.  Additional observations of the Minerva
system are strongly encouraged.  Additional details, including
information on a forthcoming occultation of the (93) system on 2014
Nov. 8 (with predicted paths across China, South Korea, and Japan)
appear on CBET 3985.


V2659 CYGNI = NOVA CYGNI 2014 = PNV J20214234+3103296
     As first announced on CBET 3842, K. Nishiyama (Kurume, Japan)
and F. Kabashima (Miyaki, Japan) reported their discovery of a
possible nova (mag 10.9) on two 40-s unfiltered CCD frames
(limiting mag 13.1) taken around Mar. 31.790 UT using a 105-mm-f.l.
f/4 camera lens.  The variable is located at R.A. = 20h21m42s.34,
Decl. = +31o03'29".6 (equinox 2000.0).  Nothing is visible at this
position on their survey frames taken on Mar. 27.781 (limiting mag
13.4), but it is apparently visible at mag 12.4 on a pre-discovery
image taken on Mar. 30.769.  The variable was designated PNV
J20214234+3103296 when it was posted at the Central Bureau's TOCP
webpage.  Additional details are given on CBET 3842, including
several spectroscopic reports classifying the object as an "Fe II"-
type classical nova close to maximum brightness with appreciable
reddening.


                      (C) Copyright 2014 CBAT
2014 September 23              (9271)            Daniel W. E. Green



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