17P/Holmes is a periodic comet (designated by the P in its name), discovered Edwin Holmes on November 6, 1892. Normally a very faint object, Holmes brightened by a factor of half a million, in October 2007 and became visible to the naked eye.
Image by Martin Crow.
Dennings observations implies velocities of around 400 – 500 m/s between the 9th and 16th November 1892
This image by Martin Crow is a subtraction of a 2007/10/29 image against a 2007/11/01 image, in effect it shows the changes in the comet over this short period.
Brightness measurements of Comet Holmes by Martin Crow. The numbers are in the astronomy unit of ‘Magnitude’ so smaller numbers represent a brighter object.
Image Keith Rickard, this image is ‘Larson – Sekanina‘ processed to show the radial detail in the coma
Image by Martin Crow showing some different image processing techniques to bring out specific features of the comet
Image by Martin Crow showing some different image processing techniques to bring out specific features of the comet
Image by Martin Crow showing some different image processing techniques to bring out specific features of the comet