non è che l'ha scovata, gli sloveni l'hanno scoperta credo il 19 e il giorno stesso compariva nelle pagine MPC delle conferme, allego la circolare IAUC con tutti i partecipanti alla conferma...ci sono anch'io (in neretto il nostro contributo), ieri sera alle 22 avevo già mandato le misure della posizione, trovata subito grazie alle effemeridi pubblicate. ecco la circolare:
Circular No. 8966
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL
http://www.cfa.harvard.edu/iau/cbat.html ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)
COMET C/2008 Q1 (MATI · CI · C)
A moving object of stellar appearance discovered by Stanislav Mati·ci·c
on four 40-s R-band CCD images taken with the 60-cm f/3.3 Cichocki
robotic telescope in strong moonlight in the course of the Comet and As-
teroid Search Program at ·Crni Vrh Observatory (discovery observation tab-
ulated below) has been found by other observers to show cometary appear-
ance. H. Miku·z adds that a series of 1-min un¯ltered exposures obtained
with the same telescope around Aug. 19.816 UT under darker sky conditions
show that the object has a somewhat-di®use appearance (coma diameter
» 1000) with strong condensation. Following posting on the Minor Planet
Center's `NEOCP' webpage, other CCD observers have also noted the ob-
ject's cometary appearance. R. Ligustri (Talmassons, Udine, Italy, 0.35-m
f/5 re°ector, Aug. 19.9) reports that twenty 120-s co-added images show a
short tail elongation » 1800 long. R. Holmes and H. Devore (Charleston, IL,
U.S.A., 0.81-m f/4.0 astrograph, Aug. 20.07{20.08) report that the object
appears di®use with a wide tail extending 3700.3 in p.a. 87o.9. K. S¶arneczky
(0.60-m Schmidt telescope at Konkoly Observatory, Aug. 20.8, 360-s co-
added image) writes that the comet shows a 800 coma and a tail 1000 long in
p.a. 120o. J. M. Aymami (Tiana, Spain, 0.25-m f/4.3 Schmidt-Cassegrain
re°ector, Aug. 20.
notes that co-added images show a distinctly nebulous
object with slight oval shape (» 900 long along its major axis). V. Gonano,
E. Guido, and G. Sostero (Remanzacco, Italy, 0.45-m f/4.4 re°ector, Aug.
20.
write that sixteen 60-s co-added un¯ltered exposures show a coma
diameter of » 1000 and a broad tail 1500 long toward p.a. 122o.
S. Foglia
(Novara Veveri, Italy, 0.40-m f/4 re°ector, Aug. 20. reports that images
obtained by P. Concari, D. Crespi, G. Galli, O. Lesca, S. Minuto, and
himself show the comet to be di®use with a 1000 coma.2008 UT ®2000 ±2000 Mag.
Aug. 18.81364 19h02m50s.20 +50o510190.05 17.8
The available astrometry, the following preliminary parabolic orbital ele-
ments, and an ephemeris appear on MPEC 2008-Q12.
T = 2009 Jan. 2.546 TT ! = 105o .645
= 9:460 ¾2000:0
q = 2.94139 AU i = 118:672
2008 August 20 c° Copyright 2008 CBAT Daniel W. E. Green
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