Hallo zusammen
CBET 3718 meldet heute morgen folgendes:
" Quanzhi Ye, University of Western Ontario; Man-To Hui, Guangzhou, China;
and Xing Gao, No. 1 Senior High School of Urumqi, China, report a dramatic
change of cometary morphology of C/2012 S1 (ISON) in unfiltered CCD images
taken with the 0.35-m SASP telescope (+ QHY9 camera) at the Xingming
Observatory from Nov. 13.99 to 14.99 UT. Seven tails are seen from p.a. 275
to 320 deg in the Nov. 14 images, as opposed to only two in the Nov. 13
images. After applying the azmuthal median model to images from both dates,
two intense jets are seen at p.a. 0 and 220 deg in the Nov. 14 images, both
being slightly skewed to the anti-solar direction and measured to be about
34" in length. The two jets were absent in the Nov. 13 images. Images are
at visible at website URL http://tinyurl.com/kefa4y4 for Nov. 13 and at URL
http://tinyurl.com/l29p5x6 for Nov. 14."
Gruss
Stefan