Asteroid occultation event on 2018 December 24

Exoplanet occultation, asteroid occultation,
solar research, comet observation, astrometry, etc.
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Asteroid occultation event on 2018 December 24

文章 PTS » 週一 24 12月, 2018 08:53

Asteroid occultation event on 2018 December 24

I've prepared finder charts from:
Digital Sky Survey (15 x 15 arcmin) and The Sky 6 (15x11 arcmin)

IOTA/IOTA-ES occultation update for
(38) Leda / UCAC4-591-011010 event on 2018 Dec 24, 11:36 UT
Visible from Japan, China


Summary
-------
On 2018 Dec 24 UT, the 110.1 km diameter asteroid (38) Leda will occult a 12.2
mag star in the constellation Taurus for observers along a path across Japan,
China.

In the case of an occultation, the combined light of the asteroid and the star
will drop by 0.53 mag to 11.71 mag (the magnitude of the asteroid) for at most
15.0 seconds.

This update is based on UNSO/Flagstaff astrometry for the asteroid kindly
provided by Hugh Harris, astrometry for the asteroid kindly provided by Bill
Owen, astrometry for the asteroid kindly provided by the IAU Minor Planet
Center.

This work has made use of data from the European Space Agency (ESA)
mission Gaia (http://www.cosmos.esa.int/gaia), processed by the
Gaia Data Processing and Analysis Consortium
(DPAC, http://www.cosmos.esa.int/web/gaia/dpac/consortium).
Funding for the DPAC has been provided by national institutions, in
particular the institutions participating in the Gaia Multilateral Agreement.

The event at a glimpse
----------------------
* Rank: 99
* date and approx. time of event: 2018 Dec 24, 11:22 - 2018 Dec 24, 11:50
* geocentric midpoint of event [JD]: 2458476.98384583
* magnitude of target star: 12.21
* magnitude drop [mag]: 0.53
* estimated maximum duration [s]: 15.0
* Moon: 96 % sunlit, 53° distance
* Sun: 151° distance
* rough path description: Japan, China
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