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Comet Drawings and Observations Comet Hale-Bopp, March 25, 1997, 0:00-1:10 UT, seeing 6, transparency 5.5. Astro-Physics 7.1" f/9 EDT refractor on homemade Dobsonian-style mount. Magnification 29x (low power view on left, field of view: 1.73 degrees) to 101x-270x (high power view on right, field of view: 0.55 degrees). Light yellow dust tail and a light blue gas tail. Dust tail appeared multi-threaded. Color of pseudo-nucleus and parabolic hoods is aquamarine. Noted two jets coming off of pseudo-nucleus connecting to inner parabolic hood. This detail was similar to detail recorded by George Phillips Bond in 1858 in Donati’s Comet. Below is a collection of some of my comet sketches. The first comet that I searched for using a telescope was Comet Kohoutek in January 1974. Unfortunately it was fainter than predicted, and not easy to find in my 60mm refractor. Because it had been predicted to be as bright as magnitude -4 (as bright as Venus), and it did not live up to expectations, when Comet West came along in late 1975 it was largely ignored. This is unfortunate as it put on a fine show in March 1976. In May 1983 Comet IRAS-Iraki-Alcock passed closer to Earth than any comet since 1770, and because of this I was able to see its motion through a pair of binoculars within seconds. Since 1986 I have tried to observe and sketch as many comets as possible, because each has its own distinct personality and often show changes from hour to hour and night to night. Making a sketch provides a permanent record of how the comet has changed. I use different techniques to record the detail in the comets, sometimes using a lead pencil on white paper or other times a white pencil on black paper. However the fine detail may not show up properly on all computer monitors. So after scanning the sketch in I reverse it (positive to negative) so it is easier to see the detail. You can select the sketches individually from the list below or select one and scroll down to the bottom and the click the arrow button to view the rest of them. "I have watched a dozen comets, hitherto unknown, slowly creep across the sky as each one signed it's sweeping flourish in the guest book of the sun." Leslie C. Peltier "Comets are like cats: they have tails, and they do precisely what they want." David H. Levy Comet Bradfield Comet Bradfield, November 22, 1987Comet Bradfield, April 30th, 2004 Comet C/2009 P1 Garradd Comet C/2009 P1 Garradd, August 23rd, 2011 (Observing report)Comet Hale Bopp Comet Hale Bopp, March 25, 1997Comet Halley, March 22, 1986 Comet Halley, April 3, 1986 Comet 103P Hartley 2 Comet 103P Hartley 2, October 9th, 10th, and 11th 2010 (observing report)Comet 103P Hartley 2, October 11th, 2010 Comet 17P Holmes Comet 17P Holmes, October 31st, 2007 (observing report)Comet 17P Holmes, October 26th, 2007 Comet 17P Holmes, October 29th, 2007 Comet 17P Holmes, November 5th, 2007 Comet 17P Holmes, November 11th, 2007 Comet 17P Holmes, November 12th, 2007 Comet 17P Holmes, November 17th, 2007 Comet Hyakutake Comet Hyakutake, March 24, 1996Comet Hyakutake, March 27, 1996 Comet Ikeya Zhang Comet Ikeya Zhang, March 11, 2002Comet Ikeya Zhang, March 16, 2002 Comet Ikeya Zhang, April 6, 2002 Comet Ikeya Zhang, April 11, 2002 Comet Ikeya Zhang, April 21, 2002 Comet Ikeya Zhang, May 4, 2002 Comet LINEAR C/2000 WM1 Comet LINEAR C/2000 WM1, December 8, 2001Comet LINEAR C/2001 A2 Comet LINEAR C/2001 A2, July 3, 2001Comet LINEAR C/2001 A2, July 16, 2001 Comet LINEAR S4 1999 Comet LINEAR S4 1999, July 8, 2000Comet LINEAR S4 1999, July 21, 2000 Comet LINEAR S4 1999, July 24, 2000 Comet Lulin C/2007 Comet Lulin C/2007, March 16, 2009Comet Machholz (C/2004 Q2) Comet Machholz (C/2004 Q2), December 15th, 2004Comet Machholz (C/2004 Q2), December 30, 2004 (observing report) Comet Machholz (C/2004 Q2), January 2nd, 2005 Comet C/2006 P1 McNaught Comet C/2006 P1 McNaught, January 12th, 2007 (observing report)Comet NEAT (C/2001 Q4) Comet NEAT (C/2001 Q4), May 12th, 2004Comet Pojmanski (C/2006 A1) Comet Pojmanski (C/2006 A1), February 28th, 2006 (observing report)Comet Pojmanski (C/2006 A1), March 5th, 2006 Comet Pojmanski (C/2006 A1), March 8th, 2006 Comet C2006 M4 SWAN (2006) Comet C/2006 M4 SWAN, October 16th, 2006 (observing report)Comet C2006 M4 SWAN (2006), October 22nd, 2006 Comet C2006 M4 SWAN (2006), October 25th, 2006 (observing report) Comet 73P-Schwassmann-Wachmann 3 (2006) 73P-Schwassmann-Wachmann 3, components B and C (2006), April 21st, 200673P-Schwassmann-Wachmann 3, components B and C (2006), April 30th, 2006 73P-Schwassmann-Wachmann 3, components B and C (2006), May 7th, 2006 73P-Schwassmann-Wachmann 3, components B and C (2006), May 17th, 2006 Comet 8P Tuttle Comet 8P Tuttle, January 7th, 2008 (Observing report)Click left arrow below to view Mars sketches or right arrow to view comet sketches. |