I found something weird in CFHT CLOUDCAM

[link to www.cfht.hawaii.edu] - shows different angles of the sky.

Sunrise and sunset in Honolulu- [link to www.timeanddate.com]

Date Sunrise Sunset
Nov 2, 2012 6:35 AM 5:54 PM
Nov 3, 2012 6:36 AM 5:54 PM
Nov 4, 2012 6:36 AM 5:53 PM
Nov 5, 2012 6:37 AM 5:53 PM
Nov 6, 2012 6:37 AM 5:53 PM
Nov 7, 2012 6:38 AM 5:52 PM
Nov 8, 2012 6:39 AM 5:52 PM
Nov 9, 2012 6:39 AM 5:51 PM

Look on the north view of the cam ,then focus on sun's reflection on the white globe (telescope). Sunset should start somewhere between 17:51 ( 5:51 ) ,but after like 5-10 mins (17:56- 18:15 ) there will be another glow on the globe .The sun had set already ,but it glows back again.

Any thoughts ?