comet

Machholz C/2004 Q2

30 December 2004

30 December 2004
16 x 60 s exposures from 23h29mn UT to 23h47mnUT
North is up

Technical details :
Nikkor AF 180 mm F2.8 D stopped at F/4
ST-10MXE - CFW8A - SBIG R filter
DDP visualisation
1224 x 717 image - 15.6 arcsec / pixel (215 ko)
2448 x 1435 image - 7.8 arcsec / pixel (838 ko)

Same as left image except linear visualisation

1224 x 717 image - 15.6 arcsec / pixel (323 ko)
2448 x 1435 image - 7.8 arcsec / pixel (773 ko)

9 January 2005

9 January 2005 30 x 30 s exposures from 22h17mn UT to 22h39mnUT North is up Technical details : Takahashi FSQ 106 mm F/5 ST-10MXE - binning 1 x 1- no filter DDP visualisation 5.3 arcsec / pixel image (198 ko)	Same as left image except median processing and linear visualisation 5.3 arcsec / pixel image (173 ko)	Same as left image except rotational gradient filter (dr = 0.3 pixel, da = 15°) to show 4 possible jets 2.65 arcsec / pixel image (78 ko)
9 January 2005 from 22h49mn UT to 23h30mn UT North is up Technical details : Takahashi FSQ 106 mm F/5 ST-10MXE - binning 2 x 2 R, G, B Astronomik filters R = 28 x 15 s, G = 35 x 15 s, B= 56 x 15 s DDP visualisation 5.3 arcsec / pixel image (227 ko)

13 January 2005

13 January 2005 45 x 20 s exposures from 21h45mn UT to 22h09mnUT North is up Technical details : Takahashi FSQ 106 mm F/5 ST-10MXE - binning 1 x 1- no filter DDP visualisation 5.3 arcsec / pixel image (196 ko)	Same as left image except median processing and linear visualisation 5.3 arcsec / pixel image (144 ko)	Same as left most image except rotational gradient (dr = 0.4 pixel, da = 15°) 2.65 arcsec / pixel image (53 ko)
13 January 2005 from 22h48mn UT to 23h22mn UT North is up Technical details : Takahashi FSQ 106 mm F/5 ST-10MXE - binning 2 x 2 R, G, B Astronomik filters R = 10 x 40 s, G = 10 x 40 s, B = 20 x 40 s DDP visualisation 5.3 arcsec / pixel image (350 ko)

14 January 2005

	14 January 2005 45 x 20 s exposures from 0h10mn UT to 0h33mnUT North is up Technical details : Takahashi FSQ 106 mm F/5 ST-10MXE - binning 1 x 1- no filter median processing - linear visualisation 5.3 arcsec / pixel image (149 ko)	Same as left image except addition of the 45 images and rotational gradient (dr = 0.4 pixel, da = 15°) 2.65 arcsec / pixel image (27 ko)
14 January 2005 30 x 30 s exposures from 19h48mn UT to 20h08mnUT North is up Technical details : Takahashi FSQ 106 mm F/5 ST-10MXE - binning 1 x 1- no filter DDP visualisation 5.3 arcsec / pixel image (218 ko)	Same as left image, except median processing and linear visualisation 5.3 arsec / pixel image (135 ko)	Same as left image except rotational gradient (dr = 0.2 pix, da = 15°) 2.65 arcsec / pixel image (43 ko)
Same as above, except registration on stars to show the numerous small background galaxies (more than 20 !) 5.3 arcsec / pixel image (263 ko) 2.65 arcsec / pixel image (618 ko)
14 January 2005 from 20h19mn to 20h50 mn UT North is up Technical details : Takahashi FSQ 106 mm F/5 ST-10MXE - binning 2 x 2 R, G, B Astronomik filters R = 7 x 60 s, G = 7 x 60 s, B = 14 x 60 s DDP visualisation 5.3 arcsec / pixel image (35 ko)	14 January 2005 30 x 30 s exposures from 21h47mn UT to 22h07mnUT North is up Technical details : Takahashi FSQ 106 mm F/5 ST-10MXE - binning 1 x 1- no filter linear visualisation 5.3 arcsec / pixel image (132 ko)	Same as left image except radial gradient d r = 0.2 pixel, d a = 15° 2.65 arcsec / pixel image (25ko)
30 january 2005 30 x 30 s exposures from 19h11mn to 19h28mn UT North is up Technical details : Takahashi FSQ 106 mm F/5 ST-10MXE - binning 2 x 2- no filter median processing DDP visualisation 5.3 arcsec/pixel	30 january 2005 30 x 30 s exposures from 21h27mn to 21h44 UT North is up Technical details : Takahashi FSQ 106 mm F/5 ST-10MXE - binning 2 x 2- no filter median processing DDP visualisation 5.3 arcsec/pixel	30 january 2005 30 x 30 s exposures from 18h38mn to18h58 mnUT North is up binning 1x1 Radial gradient d r = 0.1 pixel, d a = 15° 2.65 arcsec / pixel

Return to Comet Home Page