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Re: [comets-ml] C/2007 N3 of 06/02/2009

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  • lams_astronomia
    Reports C/2007N3 Lulin 2009 Feb. 07.72 UT: m1=6.2, Dia.=10 . DC=6; 7x50B; Chris Wyatt (Armidale, NSW, Australia) [Comet was easily seen naked eye with direct
    Message 1 of 10 , Feb 8, 2009
      Reports C/2007N3 Lulin
      2009 Feb. 07.72 UT: m1=6.2, Dia.=10'. DC=6; 7x50B; Chris Wyatt (Armidale, NSW,
      Australia) [Comet was easily seen naked eye with direct vision, coma seemed fan
      shaped to the NW, no tail seen visually. Comp Star= TYC 5572-319-1; Method: S;
      Cat= TJ]
      2009 Feb. 07.343 UT: m1=6.5, Dia.=10, DC=3; 11x80B; Erwin Salazar (Cusco, Perú)
      2009 Feb. 07.330 UT: m1=6.3, Dia.=8', DC=5; 16x80 B; Gerardo Addiego
      (Montevideo, Uruguay)
      2009 Fev. 07.323 UT: m1=6.2, Dia.=12', DC=5/; 7X50B; Marco Goiato (Araçatuba,
      Brasil)
      2009 Feb. 07.236 UT: m1=6.2, Dia.=9', DC=4/; 10cm R f:6.5 (26x); Luis Mansilla
      (Rosario, Argentina) [Urban sky]
      2009 Feb. 06.72 UT: m1=5.8, Dia.= 8, DC=6; 7x50 B; Chris Wyatt (Walcha, NSW,
      Australia) [Slight tail extension to NW about 5' long, coma slightly fan shaped
      to the NW as well. Comet seen naked eye using averted vision.]
      2009 Feb. 06.326 UT: m1=6.3, Dia.=5', DC=4/5; 20x80 B; Mariano Ribas (Buenos
      Aires, Argentina) [Método In-Out. Urban sky]
      2009 Feb. 06.24 UT: m1=6.1, Dia.=10', DC=7; 20x50 B; Alfons Diepvens (Balen,
      Belgium)
      2009 Feb. 05.75 UT: m1=5.8; Dia.=10', DC=6; 7x50 B; Chris Wyatt (Armidale, NSW,
      Australia) [Slight coma extension to SE, tail to NW, approx 10' long. Seen naked
      eye with averted vision, LM= 6.4]

      ----- Original Message -----
      From: "Thomas Dorman" <drygulch_99@...>
      To: <comets-ml@yahoogroups.com>
      Sent: Sunday, February 08, 2009 4:38 PM
      Subject: Re: [comets-ml] C/2007 N3 of 06/02/2009


      Martin
      I was able to spot Lulin this morning between 11UT. to 12 UT,Feb.8th.We had a
      nice clearing early this morning.My feelings are that the comet has brightened
      since I observed it last on the Feb 5th.Worked between naked eye,7x35 and 10x50
      binoculars.To me , Comet Lulin looked best in my 7x35.My best guess is Comet
      Lulin is around magnitude +6.3,DC:4 and diameter:11'.Would not put much credit
      to the diameter to much moon light washing the sky out.
      Regards
      Thomas Dorman
      Horizon City,
      .

      --- On Sun, 2/8/09, martin mc kenna <martinastro2003@...> wrote:
    • amar10sharmaa
      On the dawn of 7th Feb, I tried to find Lulin naked-eyes from a site at +13* latitude with NELM ~6.4 mag. Plain averted vision did not work, it was to be
      Message 2 of 10 , Feb 9, 2009
        On the dawn of 7th Feb, I tried to find Lulin naked-eyes from a site
        at +13* latitude with NELM ~6.4 mag. Plain averted vision did not
        work, it was to be extreme averted vision, and there was this very
        faint 'star' just to the left of 5 Libra (6.33 mag). More staring
        helped. This comet was a fraction fainter than the star, making me to
        place it at 6.4 mag. DC = 5 through 10x50's and Dia = 10' did not
        estimate magnitude through binoculars.

        Thanking You.
        Amar A. Sharma
        +12* 58', 77E 30'
        Bangalore, India
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