Grazie a tutti....tutto fattore C.
Renzo anche io non le controllo mai ma questa volta l' asteroide stava
proprio nella nebulosita' di Merope, quindi era impossibile da non vedere.
Mi servira' da lezione anche a me per le future riprese.
Come da richiesta vi posto la circolare inviatami da Gianluca:
Circular No. 9181
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@EPS.HARVARD.EDU ISSN 0081-0304
URL
http://www.cbat.eps.harvard.edu/index.htmlPrepared using the Tamkin Foundation Computer Network
APPARENT FLARE STAR IN TAURUS
Raffaele Castellano, Vico Equense, Italy, reports the
detection of an apparent outburst of a previously unknown variable
star in the field of M45 (the Pleiades cluster) on Oct. 29.898 UT
using a Takahashi BRC250 f/5 refractor (+ FLI Proline 16803 CCD
camera + clear luminance filter). G. Masi (Ceccano, Italy) has
analyzed Castellano's images and reports the following precise
position: R.A. = 3h47m29s.90, Decl. = +23o33'15".7 (equinox
2000.0; uncertainty 0".3 in each coordinate). The USNO-B1.0
catalogue has a red star (1135-0042434) at this position (end
figures 29s.897, 15".47; B-V approximately +1.5). Masi provides
the following red magnitudes for the variable: Oct. 29.9000, [19:;
29.9090, 19.0; 29.9181, 18.5; 29.9271, 16.6; 29.9361, 14.3;
29.9452, 14.6. Masi comments that the object seems to be real,
having a profile and a FWHM similar to the stars around it. An
animation video by Raffaele is posted at the following website URL:
http://www.youtube.com/watch?v=FIc2pqnZ3KQ.
(C) Copyright 2010 CBAT
2010 November 4 (9181) Daniel W. E. Green