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OBS-V: C/2012 S1 (Nov 15 2013)

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  • Man-To Hui
    Hi all, C/2012 S1 (ISON) 2013 Nov 15.91 UT, m1=5.0, Dia.=4 .5, DC=8 (M.-T. Hui, Nhut Thong Pau, Canton, China, 20.0-cm reflector; city lights, twilight;
    Message 1 of 1 , Nov 15 5:16 PM
      Hi all,

      C/2012 S1 (ISON)
      2013 Nov 15.91 UT, m1=5.0, Dia.=4'.5, DC=8 (M.-T. Hui, Nhut Thong Pau, Canton, China, 20.0-cm
      reflector; city lights, twilight; 0.7-deg tail in p.a. 295 deg.;)

      ICQ format:
         2012S1  2013 11 15.91  M  5.0 TK 20.0L 5  30   4.5  8   0.7  295 ICQ XX XU

      I made every effort to spot any delicate structure close to the optocenter at 139x, yet the twilight had been already too bright so I couldn't convince myself about what I might have seen. I just kept following the comet till local 6:06 a.m. (22:06 UTC), when the sun alt. was -8.4 deg. Nor was the comet invisible after that time; it was still observable but the difficulty significantly surged thereby easily lost in the rapidly dawning twilight. My sketch could be found at (http://comethunter.lamost.org/sketches/kometen/CK12S010.htm#20131115).

      Cheers, Man-To Hui
      --------------------------------------------------
      Man-To Hui (Cantonese)
      Wentao Xu, Wen-Tao Hsu (Mandarin Chinese)
      Astrosite: comethunter.lamost.org
      Blog: pachacoti.wordpress.com
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