Jupiter

From the author of Sizing Up The Universe

00:13 EDT September 20, 2010.
3.5" Questar --> 1.5x Barlow --> 2x Barlow --> 1" extension --> ToUcam
Best frames from six 2.5 minute videos at 10 fps.
Individual videos aligned and stacked in Registax V5.
Six stacked images derotated and stacked in Matlab.

Six images.
Derotated final stack.

NOTE: Oval BA (aka Red Jr.) below the Great Red Spot.

02:50 EDT September 2, 2010.
3.5" Questar --> 2x Barlow --> 2" extension --> ToUcam
Best frames from 4 minutes at 10 fps.
Aligned and stacked in Registax V5.

03:00 EDT August 31, 2010.
3.5" Questar --> 1.5x Barlow --> 2x Barlow (--> 1" extension) --> ToUcam
Best frames from 4 minutes at 10 fps.
Aligned and stacked in Registax V5.
Click here for analysis of the resolution of the image below.

Without Extension
With Extension

Wavelet sharpened in Registax
Unsharp mask sharpened in Photoshop

02:22 EDT August 26, 2010.
Philips TouCam on 3.5" Questar w/ Questar 1.5x and 2x Barlows in axial Port.
646 frames at 5 fps.
Aligned and stacked in Registax V5.

Dimmer
Brighter
Gentler

21:23, 21:32, 21:40, 21:48, 21:54 EST March 29, 2004.
Philips TouCam on 3.5" Questar w/ Questar 2x Barlow in axial Port.
300 frames each at 5 fps. Each frame 1/25 sec.
Aligned and stacked in Registax 2.
North is up, east is left.
Io and Europa shadows in transit. Io and Europe themselves are transiting too. Europa is almost occulting Io.

Click here for a 3-D version.

This image is a combination of the 5 images above.
A Matlab program was written to rotate the images into alignment.
The moon shadows required special treatment and could be improved.
Move your mouse cursor over the image to see the same stack without rotation correction.

10:07--10:30pm EST March 6, 2004.
Philips TouCam on 3.5" Questar w/ Questar 2x Barlow in axial Port.
5 images of 252, 584, 440, 886, 598 frames. Each frame 1/25 sec.
Aligned and stacked in Registax 2. Animated gif from Photoshop 7
North is up, east is left.
Io shadow transit. Io itself is small orange orb leading the shadow.
Europa is east and Ganymede is west.

10:44pm EST February 28, 2004.
Philips TouCam on 3.5" Questar w/ Questar 1.6x Barlow.
250 seconds at 5 frames/sec = 1237 frames (13 rejects).
Aligned and stacked in Registax 2.

October 05, 2001.
Starlight Express MX-916 camera 3.5" Questar
Eyepiece projection w/ 8mm Brandon eyepiece (~f/90)
GRS is in upper left portion

5x0.5sec+5x1.0sec+5x2.0sec 8:35 UT Oct 05, 2001

October 09, 2001.
Starlight Express MX-916 camera 3.5" Questar
Eyepiece projection w/ 8mm Brandon eyepiece (~f/90)
Jupiter w/ Great Red Spot and Europa shadow
Both shadow and GRS are near right edge

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