Webcam images of Mars - 23 July 2003

My best webcam images of Mars for 23 July 2003

Date: 23 July 2003 Telescope: 10 inch SCT AVI: 1/5 sec at 5 fps for 300 seconds

Time: see below Camera: Logitec Quickcam Pro 4000 Processing: 120 frames stacked

Observatory: Hartbeespoort Magnification: 3x Tele Vue Barlow Software: K3CCDTools and Photoshop

Mars Apparent Diameter: 20.7 " Illuminated Fraction: 0.941 Distance from Earth: 0.4522 ua Central meridian: 320.09 (at 1:53 UT)

From left to right:

Mars at 1:53 UT - Central meridian 320.09
Mars at 1:59 UT - Central meridian 321.55
Mars at 2:06 UT - Central meridian 323.26
Mars at 2:56 UT - Central meridian 335.44

The rotation of Mars is apparent (over one hour) - especially when comparing the first and last images.

Mars' limb haze - the ugly bright arc on the right hand side of the limb - is too bright for the second and third images. I must still determine how to best reduce its glare.

Date: 23 July 2003 Telescope: 10 inch SCT AVI: 1/5 sec at 5 fps

Time: 3:38 UT Camera: Logitec Quickcam Pro 4000 Processing: 130 of 1500 frames stacked

Observatory: Hartbeespoort Magnification: 3x Tele Vue Barlow Software: K3CCDTools and Photoshop

Mars Apparent Diameter: 20.7 " Illuminated Fraction: 0.941 Distance from Earth: 0.4519 ua Central meridian: 345.67

I added some red ( using Adobe Photoshop's image - adjust - variations menu option) to the picture on the right.

Date: 23 July 2003	Telescope: 10 inch SCT	AVI: 1/5 sec at 5 fps for 300 seconds
Time: see below	Camera: Logitec Quickcam Pro 4000	Processing: 120 frames stacked
Observatory: Hartbeespoort	Magnification: 3x Tele Vue Barlow	Software: K3CCDTools and Photoshop

Date: 23 July 2003	Telescope: 10 inch SCT	AVI: 1/5 sec at 5 fps
Time: 3:38 UT	Camera: Logitec Quickcam Pro 4000	Processing: 130 of 1500 frames stacked
Observatory: Hartbeespoort	Magnification: 3x Tele Vue Barlow	Software: K3CCDTools and Photoshop