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C/2006 P1 (McNaught)

The discovery image of comet McNaught obtained on 2006 August 7
Copyright © 2006 by the R. H. McNaught (Siding Spring Observatory, Australia)

This is the discovery image obtained by R. H. McNaught in the course of the Siding Spring Survey. It was obtained on 2006 August 7.51 using the 0.5-m Uppsala Schmidt telescope and a CCD camera. The image covers 13.2'x10.0' with north up and the southern edge of the field at the bottom of the image.


Image of comet C/2006 P1 on 2006 August 22


Image of comet C/2006 P1 on 2006 November 1


Image of comet C/2006 P1 on 2006 November 16


Images of comet McNaught on the during December 2006
Copyright © 2006 by the Solar and Heliospheric Observatory (SOHO)

The webmaster has assembled seven slices of images that were obtained by the SOHO spacecraft's SWAN instrument during December. These show comet C/2006 P1 (McNaught) as it developed during the period of December 11 to 31. Most of these were obtained prior to the comet's recovery in twilight by observers on Earth. The black area below the comet is the mask that hides the sun to enable these images to be obtained. (Courtesy of SOHO/SWAN consortium. SOHO is a project of international cooperation between ESA and NASA.)


Image of comet McNaught on 2007 January 5
Copyright © 2007 by Burkhard Leitner (Graz, Austria)

B. Leitner obtained this image on 2007 January 5.24. He used a Canon 300D digital camera and a Super-Komura 100mm telephoto lens to obtain six 2-second exposures. These images were subsequently stacked.


Image of comet McNaught on the morning of 2007 January 5
Copyright © 2007 by Michael Jäger and Gerald Rhemann (Austria)

Michael Jäger and Gerald Rhemann obtained this image of comet McNaught on 2007 January 5.3. Using a 20-cm ASA Astrograph and a Sigma 1603 CCD camera, they obtained 15 0.3-second exposures using a total of four different filters to obtain this color image. [This image was rotated to show the comet's orientation with respect to the horizon. The black triangular regions in the lower left and upper right simply mark the edge of the actual image.]


Image of comet McNaught on 2007 January 6
Copyright © 2007 by Gary W. Kronk (St. Jacob, Illinois, USA)

G. W. Kronk obtained these two images within two minutes of each other. The image of the star Altair was shot when the sun was barely above the horizon, while the image of the comet was shot literally seconds after the sun dropped below the horizon. Altair was 28° above the horizon when its image was obtained, while the comet was 9° above the horizon for its portrait. Kronk used a 20-cm Meade SCT and a MallinCam video camera.


Image of comet McNaught on 2007 January 8
Copyright © 2007 by Gary W. Kronk (St. Jacob, Illinois, USA)


Image of comet McNaught on 2007 January 9
Copyright © 2007 by Gary W. Kronk (St. Jacob, Illinois, USA)


Image of comet McNaught on 2007 January 10
Copyright © 2007 by Gary W. Kronk (St. Jacob, Illinois, USA)


Image of comet McNaught on 2007 January 11
Copyright © 2007 by Wally Pacholka (Death Valley, California, USA)

W. Pacholka tried for five nights to capture this comet. Although he was unsuccessful during the first four, he finally managed to find the comet through a small break in the clouds on January 11.10. During this 5-minute long break, he photographed the comet using a Canon D20a and an 85mm lens. The camera was set at ISO 800, f/5.6, and was a 1/20-second exposure.


Image of comet McNaught on 2007 January 11
Copyright © 2007 by the Solar Terrestrial Relations Observatories (STEREO)


Image of comet McNaught on 2007 January 11
Copyright © 2007 by Kosmas Gazeas (Cambridge, Massachusetts, USA)

K. Gazeas obtained this image on January 11.90 from the roof of the Smithsonian Astrophysical Observatory Center for Astrophysics.


Image of comet McNaught on 2007 January 11
Copyright © 2007 by Mark Brown (Florida, USA)

Mark Brown photographed the comet on January 11.93. He used his Canon Digital Rebel connected to an Orion 80mm refractor and obtained five images which were combined in Registax.


Image of comet McNaught on 2007 January 12
Copyright © 2007 by Jim and Mary Erickson (Hoonah, Alaska, USA)

Jim and Mary Erickson accidentally spotted the comet hanging in the western sky on January 12.06, and managed to take several photographs. Several images were sent to the webmaster, with the best being displayed above.


Image of comet McNaught on 2007 January 12
Copyright © 2007 by the Solar and Heliospheric Observatory (SOHO)

In this image from SOHO taken on January 12.66, the sun is at the center of the image and blocked by an occulting disk, while the comet is located near the upper left of the field. The brightness of the comet's head is strongly saturating the pixels of the CCD chip which causes the horizontal spikes. For comparison, Mercury is located just below and to the left of the sun.

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