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Terry's Occultation Page
Greeting from West Palm Beach
During the month of February one occultation presents itself as a possible occultation worthy of a group effort. The occultation I would like to highlight is when (1398) Donnera occults TYC 4916-00772-2 on Saturday, February 25, at 11:32 PM. This is an occultation suitable for a video camcorder effort. This is a Rank 36 event with a 20% probability of success at my location. Currently four stations have been planned. If we doubled the number of observers with a good distribution right and left we would have an excellent opportunity to accurately determine the location, shape and size of this asteroid. It is worth noting that Florida's geography uniquely allows observers in the Palm Beaches to observe this event. It is common that when shadow paths of asteroids cross Florida from east to west that only observers in Florida are in a position to observe the event without significant travel. There are many times when the shadow path extends from Europe across Florida. On other occasions the shadow path of an occultation crosses Florida and then extends across Mexico, or other states in the USA and often up into Canada. However, Florida normally does not share common weather with either Mexico, or states to the north. Thus, observing occultations in our area can always be described as important. Often our weather is better here than it is for other observers. I encourage you to become involved in observing occultations. Note the image above indicates this is an ideal occultation for south Florida observers to rally around. It is, however, primarily a video event. Thus to fully observe this event observers will need a suitable camera and camcorder. Ideally, they should also have a GPS time insertion capability. These are one time purchases. I have a few extra cameras and camcorders. If you would like to try this event and need equipment, please let me know. For those with an interest in chasing shadows there is an entire community of amateur and professional astronomers that daily coordinate worldwide to observe and report on occultations. The International Occultation and Timing Association (IOTA), where you can learn more about them, can be found here: http://www.occultations.org/. Two resources readily available to those in the Palm Beaches are the web pages maintained here: http://www.poyntsource.com/New/Regions/Redding.htm, and here: http://www.hristopavlov.net/OccultWatcher/OccultWatcher.html. The first is a website updated each month by Derek Briet for amateur astronomers in the Palm Beaches. He lists future asteroid and lunar events. His web products are created with Occult v4. The second website is the home of Occult Watcher. This program is the one I use to create a list of potential occultations and mutual events that can be observed from my location, or near my location. It is a very easy to use program that has become essential for those wishing to chase shadows and coordinate their efforts with the larger community of observers. If you have an interest in occultations, and would like help getting started, please feel free to contact me. Now lets chase some shadows. Terry - W6LMJ - 14.287 Terrence R. Redding, Ph.D. Redding Observatory South, West Palm Beach, Florida How do amateur astronomers learn? This research supported by Redding College of Palm Beach American Association of Variable Star Observers (AAVSO): RTN http://www.aavso.org/
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