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OBS-V: C/2011 L4

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  • Jakub Cerny
    C/2011 L4 (Panstarrs) 2013 Mar. 14.76 UT: m1=1.6:, Dia.=5 , DC=7/, Tail: 1.5 deg in PA 60 deg, 25x100 binoculars. [Non-text portions of this message have
    Message 1 of 6 , Mar 14, 2013
      C/2011 L4 (Panstarrs)
      2013 Mar. 14.76 UT: m1=1.6:, Dia.=5', DC=7/, Tail: 1.5 deg in PA 60
      deg, 25x100 binoculars.


      [Non-text portions of this message have been removed]
    • M.-T. Hui
      2013 Mar 14.50 UT, m1 = 1.8:, DC = 8 (M.-T. Hui, Mt. Jizu, Yunan, China, naked eye; alt. 7.8 deg; &0.5-deg tail in P.A. 75 deg) ICQ format:    2011L4  2013
      Message 2 of 6 , Mar 17, 2013
        2013 Mar 14.50 UT, m1 = 1.8:, DC = 8 (M.-T. Hui, Mt. Jizu, Yunan, China, naked eye; alt. 7.8 deg; &0.5-deg tail in P.A. 75 deg)

        ICQ format:
           2011L4  2013 03 14.50  I  1.8:TJ  0.0E     1        8  &0.5   75 ICQ XX XU
         
        Man-To Hui
        *******************************************************
        Man-To Hui (Cantonese)
        ("Wentao Xu", "Wen-Tao Hsu" in Mandarin)
        +23deg09m12s, +113deg18m54s
        Canton, China Mainland
        Graduate of B. Sc., School of Physics, WHU (2008-2012)
        Astrowebsite: http://comethunter.lamost.org
        Blog: http://pachacoti.wordpress.com
      • cnj999
        2013 March 18.00 UT, m1 = 2.6 , dia 3 , DC 9, tail 0.5-deg in PA ~50 deg., 15x70B The m1 has been corrected for extinction using Average table values.
        Message 3 of 6 , Mar 17, 2013
          2013 March 18.00 UT, m1 = 2.6 , dia 3', DC 9, tail 0.5-deg in PA ~50 deg., 15x70B The m1 has been corrected for extinction using "Average" table values.
          J.Bortle, Brooks Obs., New York, USA
        • piotrek16
          C/2011 L4 (PANSTARRS): 2013 Mar. 16.73 UT: m1 = 1.7*, Dia.=3 , DC=8, Tail: 0.5 deg. in PA 65 deg, naked eye. [In 10x50B: broad dust tail ~2 deg long. Comet
          Message 4 of 6 , Mar 18, 2013
            C/2011 L4 (PANSTARRS):

            2013 Mar. 16.73 UT: m1 = 1.7*, Dia.=3', DC=8, Tail: 0.5 deg. in PA 65 deg, naked eye. [In 10x50B: broad dust tail ~2 deg long. Comet easily seen with naked eye, much brighter than nearby gamma Peg (2.8 mag). The m1 has been corrected for extinction using "Average" table values.]
            Piotr Guzik, Krosno, Poland

            2013 Mar. 17.74 UT: m1 = 1.8*, Dia.=3', DC=8, Tail: 1 deg. in PA 55 deg, naked eye. [In 10x50B: very broad dust tail, spanning from PA 45 deg. to ~110 deg, at least 2.5 deg long in PA 55 deg. Northern edge of the tail gently curved and sharp, southern much more diffuse and shorter - about 0.5 deg. in PA 110 deg. Comet easily seen with naked eye for more than half an hour. The m1 has been corrected for extinction using "Winter" table values.]
            Piotr Guzik, Krosno, Poland
          • Jakub Cerny
            Hello all, Here are our latest observations of comet Panstarrs. Best regards, Jakub Cerny Jakub Cerny: C/2011 L4 (Panstarrs) 2013 Mar. 16.76 UT: m1=1.7,
            Message 5 of 6 , Mar 21, 2013
              Hello all,

              Here are our latest observations of comet Panstarrs.

              Best regards,
              Jakub Cerny

              Jakub Cerny:
              C/2011 L4 (Panstarrs)
              2013 Mar. 16.76 UT: m1=1.7, Dia.=5', DC=8/, Tail: 0.5 deg in PA 60
              deg, Naked Eye.
              2013 Mar. 20.77 UT: m1=2.3, Dia.=5', DC=7/, Tail: 0.5 deg in PA 45
              deg, Naked Eye.
              2013 Mar. 20.77 UT: m1=2.6, Dia.=8', DC=7, Tail: 2.0 deg in PA 45 deg,
              8x40 binoculars.

              Jan Horsky
              C/2011 L4 (Panstarrs)
              2013 Mar. 20.78 UT: m1=2.9, 8x40 binoculars.
            • piotrek16
              C/2011 L4 (PANSTARRS): 2013 Mar. 20.76 UT: m1 = 2.6*, Dia.=4 , DC=8, Tail: 1 deg. in PA 50 deg, naked eye. [Comet easily seen with naked eye. In 10x50B the
              Message 6 of 6 , Mar 27, 2013
                C/2011 L4 (PANSTARRS):

                2013 Mar. 20.76 UT: m1 = 2.6*, Dia.=4', DC=8, Tail: 1 deg. in PA 50 deg, naked eye. [Comet easily seen with naked eye. In 10x50B the dust tail was very broad, spanning from p.a. 30 deg. to 100 deg. and significantly curved to the left. I could trace it to about 2.5 degrees. Faint, thin, straight ion (?) tail was also visible in p.a. 30 deg., approx. 1.5 degrees long. The sky was transparent and pretty dark - in 10x50B stars up to magn. 7.5 were seen in comet vicinity. The m1 has been corrected for extinction using "Winter" table values.]
                Piotr Guzik, Skawinki, Poland

                2013 Mar. 23.76 UT: m1 = 3.1*, Dia.=4', DC=8, Tail: 0.5 deg. in PA 40 deg, naked eye. [The comet was clearly brighter than eta Psc and significantly fainter than alpha And. Clearly seen with naked eye though a bit harder than six days ago. In 10x50B: m1=3.3*, broad dust tail spanning from p.a. 20 deg. to 80 deg. I could trace it to about 1.8 degrees in p.a. 40 deg. The m1 has been corrected for extinction using "Winter" table values.]
                Piotr Guzik, S³omniki, Poland

                2013 Mar. 24.77 UT: m1 = 3.4*, Dia.=4', DC=8, Tail: 0.5 deg. in PA 40 deg, naked eye. [The comet was slightly brighter than eta Psc and significantly fainter than alpha And. Still relatively easy to see with naked eye. The transparency of the sky was not as good as on previous occasions. In 10x50B: m1=3.5*, tail: 1.2 degrees in p.a. 40 deg. The m1 has been corrected for extinction using "Average" table values.]
                Piotr Guzik, S³omniki, Poland
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