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Asteroid occultation event on Dec 15, 2008

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發表於 2008-11-22 14:35:31 | 顯示全部樓層 |閱讀模式
Hi,
Here is the 3rd event for Dec 2008.
Attached are finder charts from DSS and The Sky 6.
Nore information can be found here:

http://occultation.freebbs.hk/thread-5330-1-1.html

PTS
*****************************
IOTA/IOTA-ES occultation update for
         (43) Ariadne / TYC 5244-00676-1 event on 2008 Dec 15, 15:11 UT
                 Visible from Hong Kong, S China, India, Africa


Summary
-------
On 2008 Dec 15 UT, the 66 km diameter asteroid (43) Ariadne will occult a 10.3
mag star in the constellation Pisces for observers along a path across Hong
Kong, S China, India, Africa.

In the case of an occultation, the combined light of the asteroid and the star
will drop by 2.2 mag to 12.4 mag (the magnitude of the asteroid) for at most 3.1
seconds.

This update is based on UNSO/Flagstaff astrometry for the asteroid kindly
provided by Alice Monet, TMO astrometry for the asteroid kindly provided by Bill
Owen, historical astrometry from the MPC files (via AstDys), and the following
catalogs for the star position: UCAC.

The event at a glimpse
----------------------
    * Rank: 95
    * date and approx. time of event: 2008 Dec 15, 15:11  - 2008 Dec 15, 15:16  UT
    * midpoint of event [JD]: 2454816.13285833
    * magnitude of target star: 10.3
    * magnitude drop [mag]: 2.2
    * estimated maximum duration : 3.1
    * Moon: 87 % sunlit, 134° distance
    * Sun: 87° distance
    * rough path description: Hong Kong, S China, India, Afric
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20081215.jpg
發表於 2008-12-14 20:28:27 | 顯示全部樓層
Spam, 版主 pls delete!
發表於 2008-12-14 20:47:39 | 顯示全部樓層
原帖由 BillYeung 於 2008-12-14 20:28 發表
Spam, 版主 pls delete!

Done!
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