[IAUC] IAUC 8845: V1280 Sco; C/2006 A8, C/2006 Y10-Y17 [25139-2008/05-R1]
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Lun Jun 11 22:34:51 ART 2007
Circular No. 8845
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
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V1280 SCORPII
R. C. Puetter, Center for Astrophysics and Space Science,
University of California at San Diego; R. J. Rudy, D. K. Lynch, R.
W. Russell, S. Mazuk, and R. L. Pearson, The Aerospace Corporation;
C. E. Woodward, University of Minnesota; and R. B. Perry, Langley
Research Center, NASA, report 0.4- to 2.5-micron spectroscopy of
this nova (cf. IAUC 8803, 8807, 8809, 8812) using the Lick 3-m
telescope (+ VNIRIS) on May 6 UT, as well as 0.8- to 5.5-micron
spectroscopy using the Infrared Telescope Facility 3-m telescope (+
SpeX) on May 31. This nova is still in a very low excitation state,
showing strong C I lines and no discernable He I emission. The
spectrum shows a significantly narrower [N I] line at 1.04 microns
than the permitted emission lines. The reddening derived from the
O I lines, which is due in part to the dust shell, is E(B-V) = 1.7.
COMETS C/2006 A8 AND C/2006 Y10-Y17 (SOHO)
Nine additional near-sun comets have been found on 2006 SOHO
website images (cf. IAUC 8844), all being Kreutz sungrazers except
apparently for C/2006 Y12. C/2006 A8 was stellar in appearance and
very faint (mag approximately 7-7.5) with no tail. All of the
remaining objects that were visible in C3 images appeared therein
as small and stellar; all of the remaining objects that were
visible in C2 images appeared therein as tailless and slightly
diffuse, except for C/2006 Y12, which was faint yet more stellar in
appearance and unusually small. In the table below, new finder 'AW'
= A. Watson.
Comet 2006 UT R.A.(2000)Decl. Inst. F MPEC
C/2006 A8 Jan. 10.013 19 36.4 -24 04 C3 BZ 2007-L16
C/2006 Y10 Dec. 23.071 18 11.9 -26 33 C3/2 TH 2007-K45
C/2006 Y11 24.821 18 18.4 -25 34 C3/2 MA 2007-K45
C/2006 Y12 27.814 18 31.4 -24 40 C2 RK 2007-K45
C/2006 Y13 28.154 18 35.4 -25 53 C3/2 WX 2007-K45
C/2006 Y14 28.504 18 34.6 -24 38 C2 RK 2007-K45
C/2006 Y15 29.179 18 39.4 -25 51 C3/2 WX 2007-K46
C/2006 Y16 29.413 18 38.6 -24 44 C2 AW 2007-K46
C/2006 Y17 29.529 18 43.9 -25 44 C3 HS 2007-K46
(C) Copyright 2007 CBAT
2007 June 11 (8845) Daniel W. E. Green
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