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THE ASTRONOMER Electronic Circular No 2915      2013 May 20 19.09UT
Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise,  Basingstoke,
Hants, RG22 4PP,England.Telephone/FAX(01256)471074Int:+441256471074
INTERNET: GUY@TAHQ.DEMON.CO.UK      Backup: gmh@wdcc1.bnsc.rl.ac.uk
WORLD WIDE WEB                         http://www.theastronomer.org
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LUNAR OCCULTATION OF ZC 1853, PSI VIRGINIS
Jan Manek, Czech Republic, reports:

On 2013 May 21/22, just before midnight, we have a great opportunity (and
last chance until 2031 November 12!) to observe from all over Europe an
occultation of ZC 1853 (psi Virginis, supposed 5.0+8.3mag binary) with a
bright component followed by the faint one occurring at the dark limb of 85%
Moon. The possible separation of 0.04" and PA ~110 degrees from 'Occult'
prediction does not quite correspond to an observation of Brian Loader from
2008 with 0.52 second long step at dark limb reappearance showing also the
faint component first, so be prepared and record at least 8 to 10 seconds
around your local predicted time (total of 16-20 seconds) and be careful
about star image saturation as we really do not know what to expect.

A video is required for this event to securely record it and to be able to
analyse this event.

Guy M Hurst



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