Station Map for the Occultation by (116) Sirona at Sunday, 2011 December 04 (~ 02:53 UT)

V-Magnitude of target star TYC 0282-00753-1: 7.7 mag
UCAC instrumental „pseudo-R“ fit-model magnitude: 6.8 mag (data from UCAC3)

The max duration is expected to be 3.3 sec with a max drop of 5.1 mag.
The event will take place at an altitude of 19 deg and at azimuth 113 deg. The sun will be at an altitude of -38 deg. (At predicted centre line for longitude E 10 deg)

There is a 1 sigma uncertainty interval of  ± 0.70 path widths.
The probabilities to see a positive event:

Centre line: ~ 52 %
Path limits: ~ 42 %
1 sigma lines: ~ 15 %
2 sigma lines: ~ 2 %

(Calculation according to Raymond Dusser, E.A.O.N. Circular #10)

PLEASE REMEMBER: Predictions are sometimes wrong. Please observe even with a small probability.
Let other observers know about you observing plans: Announce your station with OccultWatcher !

More information (coordinates, finder charts) at Steve Preston’s prediction:

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):

Good luck with your observation!

Oliver Klös

(116) Sirona, 2011 December 04, Station Map

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