British Astronomical Association
Supporting amateur astronomers since 1890

Secondary menu

Main menu

BAA Gallery Picture of the Week
Image search

Ceres - John Sussenbach

Image
About this observation
Observer
John Sussenbach
Time of observation
29/12/2009 - 15:00
Like This Image
 0  
Share

On February 25, 2009 Ceres will be the closest to the Earth for the next 1000 years. Reason the more to try to image the dwarf planet. With its 0.83" it has the size of the theoretical resolution of an 11 inch telescope. As a comparison I used Denebola. Despite the fact that collimation was not perfect, the disk of Ceres is clearly visible. Perhaps other members would like to try. Atmospheric conditions:          Seeing 7/10, Transparancy 8/10 Telescope :                              Celestron C11 with Televue 3x Barlow and Astronomik RGB filters Camera:                                   DMK2AF4.AS Exposure time:                        1/5 sec; gain 100%; gamma 40%; per color  2x 2 min exposures total of 980 frames Processing:                              Registax 4.0 and finally per color 500 best frames stacked

Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. For more information, please contact the webmaster.