2018 September 25 asteroid occultation event

Exoplanet occultation, asteroid occultation,
solar research, comet observation, astrometry, etc.
回覆文章
PTS
夸克星
文章: 6320
註冊時間: 週日 28 10月, 2007 08:50
來自: HK

2018 September 25 asteroid occultation event

文章 PTS » 週六 08 9月, 2018 21:28

2018 September 25 asteroid occultation event
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
(1256) Normannia / HIP 15555 event on 2018 Sep 25, 17:07 UT
Visible from Japan, China, SE Asia


Summary
-------
On 2018 Sep 25 UT, the 69.9 km diameter asteroid (1256) Normannia will occult a
7.0 mag star in the constellation Aries for observers along a path across
Japan, China, SE Asia.

In the case of an occultation, the combined light of the asteroid and the star
will drop by 8.62 mag to 15.65 mag (the magnitude of the asteroid) for at most
16.6 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: 80
* date and approx. time of event: 2018 Sep 25, 16:43 - 2018 Sep 25, 17:32
* geocentric midpoint of event [JD]: 2458387.21374167
* magnitude of target star: 7.03
* magnitude drop [mag]: 8.62
* estimated maximum duration [s]: 16.6
* Moon: 99 % sunlit, 43° distance
* Sun: 129° distance
* rough path description: Japan, China, SE Asia
您沒有權限檢視這篇文章所附加的檔案。

PTS
夸克星
文章: 6320
註冊時間: 週日 28 10月, 2007 08:50
來自: HK

Re: 2018 September 25 asteroid occultation event

文章 PTS » 週二 25 9月, 2018 06:34

Reminder.
There may be good chance tonight.

回覆文章

回到「業餘天文研究專區 Amateur Astronomers' Research Area」

誰在線上

正在瀏覽這個版面的使用者:沒有註冊會員 和 1 位訪客