Newsgroup: it.scienza.astronomia.amatoriale
Titolo: Re: MOON - VESTA, Aug, 07, Wk 3

 Ben, 90.126 n 35.539
Are You able to say something about that prediction?
I'm not sure but I think You are wrong... :-)
Please read carefully this document obtained using the famous SOLEX
9.12 software:
http://ephemerides.astronomiques.ifrance.com/occultazioni-luna-vesta.pdf
Best regards.
Eliseo

 - Show quoted text -
Eliseo,
         My computer could not open the file supplied by your
link but I will recheck the data for Aug 14, 18h.
         If you could fill me in on the error I would be most
grateful since my spreadsheet is still a work in progress.
Thanks,
Ben

 Ben
Eliseo,
        I rechecked the data and it was the same as that
entered.   Did you set the date for Aug 14.75 (18h)?
Ben

Moon, Aug 20
18h UTC
coords: 15 24 s 23 55
long trmntr: w 0.229d
sine cent long: -0.004
ecc ell: 0.9991
dist: 250 413 mi / 403 001 km
diam: 29.7'
illum: 52.1%
Moonset London: 21:13UT
Features:
N- Triesnecker, Chiadni, Ukert + graben, Conon +
rille, Hadley + rille (+), Autolycus, Aristillus, Cassini,
Vallis Alpes...
Libration: w 2.68, n 7.49
at 18h trmntr xing Murchison (degraded)
S- Albategnius/Klein/Parrot, Werner, Stoffler/Faraday
at 18h trmntr xing Purbach and Regiomontanus
Moon trav 10.97d @ 0.457 d/h
Quadrature @ 23:55 UT
VESTA: 16 25 39 s 20 19
7.1 mag, trav 41"/h
Vesta is ca 0.5 deg SE of Psi Scorpii



Hallo!
Sorry but I don't use a speadsheet for astronomical computation. My
preferred sw is SOLEX ( 
http://chemistry.unina.it/~alvitagl/solex/
 ).
It'is a powerful numerical integrator very accurate and therefore
useful for the predictions of occultations, eclipses, transit and so
on.
During this year we can see only an occultation of Vesta by the Moon
but not for London (and not even for the Europe).
I calculated again the geocentric circumstances. There are:
  Conditions of minimum geocentric angular distance (within  2.000ø)
    Date      TDT       Dm     m1   m2   tm(s)
2007/12/12 21:30:12  0.38211 -9.0  7.8   3431  Moon - Vesta
Where Dm is the minimum (geocentric) distance expressed in degrees; m1-
m2 are the magnitudes of the two celestial bodies, and tm(s) is the
max duration (in seconds) of the "eclipse". Now You can see the
graphic solution obtained with Solex 9.12
http://cjoint.com/data/iukkoaboHF.htm
Note that the "shadow" will be visible but only in the southern
emisphere.
Best regards.
Eliseo
PS.:
You can read many examples, explanations of algorithms, and a lot of
predictions of asteroidal occultation (but mainly in italian language
(sorry!) into the following site:
http://ephemerides.astronomiques.ifrance.com

Gesu, Maria i tutti gli Santi!
      That is one impressive apparatus and I didn't even
know it existed.   My Italian is not quite competent
but it's worth reviewing just to look around this
application.   Thank you for calling my attention to it.
      I didn't mean to imply that the Moon would occult
Vesta anytime soon - this cropped in Sciastro.amateur
the other day.  I just put Vesta in the posts because it's
such an easy binocular target.
Sincere thanks,
Ben

 Ben
Bye
Eliseo

Moon, Aug 21,
18h UTC
coords: 16 15 s 26 37
long trmntr: w 12.29d
sin cent long: -0.213
ecc ell: 0.9888
dist: 248 775 mi / 400 365 km
diam: 29.8'
illum: 57.4%
Moonset London: 21:41 GMT
Features:
N- Schroeter, "Gruithuisen's City" (hills to N), Eratosthenes,
Wallace (dgrd), Archimedes, Grabau Ridge, Spitzbergen
Mts, Plato + craterlets, N Limb (++)
Libration: w 3.7d, n 7.66d
at 18h trmntr xing Timocharis
S- Flammarion (dgrd) + rille, Lalande, Davey, Lasell,
Rupes Recta (+), Birt, Deslandres (ruin)/Lexell/Ball/Hell
at 18h trmntr xing Tycho and Clavius
Moon trav 11.11d @ 0.463 d/h
VESTA: 16 26 44 s 20 35
7.1 mag, trav 41"/h
Vesta is ca. 0.75d SE of Psi Scorpii
Thanks for the kind ratings,
Ben, 90.126 n 35.539