[IAUC] IAUC 9168: V1723 Aql = N Aql 2010; C/2009 S6-S12, S/2009 T4-T10 [25139-2011/04-R1]

Mie Sep 14 16:19:48 ART 2011

                                                  Circular No. 9168
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.
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Prepared using the Tamkin Foundation Computer Network


V1723 AQUILAE = NOVA AQUILAE 2010
     Elena Kazarovets, Russian Academy of Sciences, writes that the
GCVS designation V1723 Aql has been assigned to this nova (cf. IAUC
9167).

     D. Balam, Dominion Astrophysical Observatory, National
Research Council of Canada (NRCC); and E. Y. Hsiao and M. Graham,
Lawrence Berkeley National Laboratory, report that inspection of a
low-dispersion spectrogram (range 575-696 nm, resolution 0.4 nm),
obtained with the NRCC 1.82-m Plaskett telescope on Sept. 14.17 UT,
shows a red continuum dominated by H_alpha emission (HWZI about
2000 km/s) with a P-Cyg profile and strong emission peaks of Na I
(589.6 nm), [O I] (630 nm), and Fe II (multiplet 74) lines at 614.9,
623.8, 624.7 and 645.6 nm.


COMETS C/2009 S6-S12 AND S/2009 T4-T10 (SOHO)
     Further to IAUC 9166, additional near-sun comets have been
found on SOHO website images -- all Kreutz sungrazers except for
C/2009 S9 (Meyer group) and C/2010 T10 (non-group).  Physical
descriptions by K. Battams:  C/2009 S6, slightly diffuse, short
tail; C/2009 S7, marginally diffuse, faint; C/2008 S8, quite
diffuse, faint tail;  C/2009 S9, stellar appearance (peak mag about
7); C/2009 S10, slightly diffuse, with a tail; C/2009 S11, very
faint (mag about 7.5); C/2009 S12, slightly diffuse (mag about 8.5);
C/2009 T4, mag about 8-8.5; C/2009 T5, diffuse with a tail; C/2009
T6, mag about 7.5-8; C/2009 T7, mag about 8.5; C/2009 T8, diffuse
(mag about 7.5) with a "slight tail"; C/2009 T9, mag about 8;
C/2009 T10, perhaps marginally diffuse (mag about 7.5).

 Comet        2009 UT        R.A.(2000)Decl.   Inst.  F    MPEC
 C/2009 S6    Sept. 23.763   11 40.4  - 1 32   C3/2  MK   2010-L21
 C/2009 S7          25.721   11 53.9  - 2 08   C3/2  RM   2010-L21
 C/2009 S8          26.529   11 49.1  - 2 53   C3/2  MK   2010-L21
 C/2009 S9          26.654   12 02.6  - 0 26   C3    BZ   2010-L42
 C/2009 S10         27.571   11 52.1  - 3 11   C3/2  MU   2010-L42
 C/2009 S11         30.404   12 14.8  - 3 48   C3/2  ZX   2010-L42
 C/2009 S12         30.579   12 20.5  - 3 33   C2    JR   2010-L42
 C/2009 T4    Oct.   4.163   12 32.8  - 5 04   C2    JR   2010-L43
 C/2009 T5           5.613   12 26.9  - 7 18   C3/2  ZX   2010-L43
 C/2009 T6           7.746   12 46.0  - 6 27   C2    MK   2010-L43
 C/2009 T7           7.796   12 46.2  - 6 31   C2    MK   2010-L43
 C/2009 T8          11.555   12 55.0  - 8 17   C3/2  BZ   2010-L44
 C/2009 T9          12.896   13 04.6  - 8 29   C2    BZ   2010-L44
 C/2009 T10         13.863   13 15.9  -11 13   C3/2  BZ   2010-L44

                      (C) Copyright 2010 CBAT
2010 September 14              (9168)            Daniel W. E. Green