International Occultation Timing Association
European Section


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Barthold-Knaust-Str. 8
D-30459 Hannover
PHEMU 2015 campaign of the Mutual Phenomena of the Satellites of Jupiter (Aug. 2014 - Aug. 2015)
Next good event: 24th of March 2015
Followed by events on the 25th, 26th, 28th and 30th of March
Starting in fall last year, the Jupiter system undergoes mutual eclipses and occultations of their satellites. Events which can be easily observed from central Europe will be announced here on this website, based on predictions by the IMCCE (France). The calculations are done for Munich, but can be used with minor changes of the local circumstances for most parts of Europe.

Announced are mainly events with an intensity drop of more than 0.25 mag and Jupiter's altitude larger than 10 deg and the sun more than 5deg below horizon.

Next two good next event are on the 24th of March. Read more....

For IOTA members:

GRAZPREP-software: Find and prepare Grazing Occultations in detail
Grazing Occultations of stars by the moon are local events and thus require an individual selection according to personal observation preferences. The GRAZPREP-software assists in all aspects of finding individually interesting events as well as selecting the best observing stations promising the most contacts between the star and the lunar limb in high resolution. GRAZPREP can be downloaded and installed, including a step by step operation tutorial. Go to the Members login part of the website!
(10199) Chariklo Occults 15h mag Star UCAC4 257-116038 for Southern Africa
One more attempt to gain more knowledge about the complex Chariklo system. On the 28th of June the Chariklo system will again occult a relatively bright star. Read more .
Occultations to Monitor Pluto's Atmosphere Before and During the New Horizons Flyby
The Pluto mission "New Horizons" is just a little more than 1 year away from its first destination, the Pluto system. In July next year the flyby will take place. Therefore the upcoming occultations of bright stars by Pluto are the last chance, to monitor Pluto's atmosphere in the time before the flyby. The next occultation is on the 5th of July 2014. Stellar Magnitude 15m7. Visible from southern Europe! Read more!
(10199) Chariklo Occults 12th mag Star UCAC4 256-124411 for southern Africa
IOTA-ES took part in the successful campaign The multi-national campaign set up stations from Windhoek to the southern part of South Africa. Chariklo's ring has been detected again. The background of the campaign can be found in the following pages: On the 29th of April an occultation of a bright star (12th mag) UCAC4 256-124411 will take place for southern Africa.The event will be at 23h09min UTC for central occultation. The shadow will hit southern Africa around 23h13min UTC. Read more!
33rd European Symposium on
Occultation Projects
Prague, August 29 - 31, 2014

We are glad to invite all members, friends, and others, who are interested in occultation phenomena, to attend the 33rd European Symposium on Occultation Projects which is taking place in Prague, Czech Republic- under the auspices of the Mayor of Prague. Read more!
Minor Planet Occultations of Bright Stars
Occultations by stars brighter than about 9th mag will be presented in this blog.
Grazing Occultations of Stars by the Moon
A field of professional astronomy between science and beauty Among all occultation phenomena in the sky grazing occultations of stars by the moon have a very unique character. The observation of these spectacular events ... read the overview in full length!
For Occultwatcher Users
European Feed for Lunar Occultations of Double Stars
There is a "Lunar Occultations Add-in" for "OccultWatcher" ready for download to get in OW interesting lunar occultations of double and suspected double stars. Read more..

TU24 movement

Asteroid TU24
recorded from Munich around 1h 10min UT on 30th Jan 2008. Fast motion (5x). Near miss of 11m9 star TYC 4140-520

creates a database for professional and amateur observatories!. Have a look to their questionaire! Read more...

Information about running TNO campaigns
Information about running campaigns for TNO occultations you can find here at Felipe Braga-Ribas website. Follow up the prediction process and get ready to observe if it is in your area!

The XXXIII European Symposion on Occultation Projects was held in Prague.
Have a look!!
The Journal for Occultation Astronomy
is now free for all, except the last 2 issues. Get it for free!
Call for Observations!
Occultations of Bright Stars by Minor Planets can be found HERE
Reporting lunar occultations
The most significant change for 27 years in reporting lunar occultations is now underway. You have to know, how to report lunar occultations from now on! Your reports have to be sent to a new mailing address.

Dave Herald reports from Canberra, Australia
Iota Occultation Camera (IOC)
IOC_symbolRead more
How many photons
do you get from a star?
GPS ... Where am I ?
Positionsbestimmung mit GPS und Karte... in German
The Artificial Night Sky Brightness
for Occultation Observing Stations in Europe