Triple shadow on Jupiter

2004/3/28

2004/3/28 03:10 EST. Three shadows and a moon on Jupiter. The two images were take several minutes apart. Seeing was bad and humidity high. The shadow at the lower left rim of Jupiter was invisible in the eyepiece -- it only showed up after image processing. Sony camcorder (hand held to the eyepiece), 8"/f6 Dob, 9mm eyepiece. North at bottom, west to the left. From Green Tree, Pittsburgh. 400 frames stacked with Registax.

Io shadow on Jupiter

2003/4/26 22:20 EDT. Io shadow on Jupiter. Io itself is just to the right of Jupiter. Sony camcorder (hand held to the eyepiece), 8"/f6 Dob, 9mm eyepiece. North at the top, west to the right. From Green Tree, Pittsburgh. 450 frames stacked with Registax.

400 frames stacked

15 frames stacked

a raw frame

2003/3/14 22:30 EST. Jupiter imaged with Sony camcorder (hand held to the eyepiece), 8"/f6 Dob, 9mm eyepiece. North at the top, west to the right. From Green Tree, Pittsburgh. (left) 400 frames stacked with Registax. (center) Manually picked 15 good frames out of 600 frames, and processed with Astrostack (resample=1, deconvolution). (right) A raw frame.

A fake Jovian satellite

A magnitude 9.2 star TYC 1879-1056-1 perfectly aligned with the Jovian system and posed as a fifth Jovian satellite at 2002/3/23 22:42 EST. The true satellites are (from left to right): Europa, Io, Ganymede and Callisto. North is up and west is right. Image taken with 8"/f6 Dob + 25mm eyepiece + Nikon Coolpix 995 digital camera, settings: 1/2s, F2.6, f8.2mm, ISO800.

One of the best frames.

Average of 19 frames, with AstroStack (Deconvolve 1).

Jupiter and its Great Red Spot. Video captured with 8"/f6 Dob + 9mm eyepiece, hand-held camcorder at the eyepiece. Digitized with D-link USB. Manually selected best frames. Processed with AstroStack. 2001/12/21 21:40 EST

2000/12/2 Jupiter and Ganymede.

21:14 EST

21:30 EST

21:50 EST

21:53 EST

Double shadow transit. The upper one is Ganymede, and the lower one is Io. 1999/11/4.

The Giant Red Spot. 1999/10/29 22:40 EDT. It is white or yellow, not red!

1:24:27 UT	1:27:04 UT	1:43:50 UT	1:47:26 UT	1:48:46 UT	1:49:46 UT
1:52:25 UT	1:53:33 UT	1:54:20 UT	1:55:35 UT	1:58:11 UT

Europa Transit. 1999/10/26 1-2am UT. Europa's shadow is the small dark dot in the first few images (above the upper band, to the left). When Europa moved closer to the edge of Jupiter, it showed up (the 4th image): an indication that Jupiter's limb is darker than the center. Images taken with a 8" Dob and a camcorder. (In case you can't see Europa in the last few images, brightening the display may help)

Dark bands on Jupiter. Questar + Camcorder 1999/9/19 23:50 EST.

Jupiter and its four bright satellites. Questar + Camcorder, Mosaic of 3 frames. 1999/9/19 23:50 EST.

Note the shadow of the satellite Io (Thanks John Pane) moved across Jupiter. Celestron 8" Dobsonian, 10mm Plossl eyepiece, Camcorder. 1999/9/27 EST.

Links:

Juplet by Akkana Peck that shows Jupiter's moons at a given time.

The Planets : another Java applet.

Jupiter satellite events and GRS times.