Linear C/2001 Q4
 




12 May 2004
13 x 45s exposure from 18h54mn UT to 19h25 mn UT
North is up

Technical details :
Nikkor AF 60 mm F2.8 D stopped at F/4
ST-10MXE - CFW8A - Astronomik L filter
Median processing to reduce contribution from the stars

1079 x 725 image (300 ko) - 46.8 arcsec/ pixel


13 May 2004
15 x 45 s exposures from 20h53mn UT to 21h07mn
North is up

Technical details :
Nikkor AF 180 mm F2.8 D stopped at F/4
ST-10MXE - CFW8A - Astronomik Green filter

1065 x 728 image (238 ko) - 15.6 arcsec / pixel
2130 x 1456 image (700 ko) - 7.8 arcsec / pixel


13 May 2004
Same as left except with median processing 
to reduce contribution from the stars
 

1072 x 720 image (286 ko) - 15.6 arcsec/ pixel






 


13 May 2004
8 x 150s exposure from 18h53mn UT to 19h24 mn UT
North is up

Technical details :
Nikkor AF 60 mm F2.8 D stopped at F/5.6
ST-10MXE - CFW8A - Astronomik L filter
Median processing to reduce contribution from the stars

991 x 617 image (250 ko) - 46.8 arcsec/ pixel

   

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