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Tim Haymes

My main interest is the observation and timing of Lunar occultations  which I stared as young member of the JAS (SPA) in the early '70s. Then in 1980 I started visual monitoring of asteroidal occultations using BAA predictions by Gordon E. Taylor,  but it was some while before my first successful video recording, that of (130) Elektra (10.7 seconds) in 2010.  I have now chalked up more than 30 positive events. This is due to improved predictions, prediction numbers and collaboration between observers.

In the last few years i have also recorded some nice lunar grazing occultations with good timing accuracy.

I help coordinate occultation observing through the Asteroid and Remote Planets Section, and the Lunar Section. My local AS is now Chipping Norton.  I am also a member of the International Occultation Timing Association, European section. (IOTA/ES).

Local society membership: Maidenhead, Reading

2017 Aug 30

11:40 UTC

This graze of a 6,7 mag star occured at a  favourable cusp angle of 6 degress (Northern Limit) with the Moon only 38% sunlit. The most interesting aspect was the double star. The telescope was set up in a carefully planed location which was expected to reveal some interesting graze phenomena. I was not dissappointed. On the light curve I have drawn a green line that represents the appearance of the fainter companion (while the brighter one occulted). The red line is both stars having appeared. The whole event lasted was 27 sec 

2017 May 17

2017 May 15


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