Jupiter - Comet Shoemaker-Levy 9 Sketches

Below are some Jupiter sketches during the time of the Comet Shoemaker-Levy 9 impacts in 1994. South is up and preceding is to the left. The dark "bruises" in the southern hemisphere are from the impacts of comet fragments. A 25cm Newtonian was used at 274x. Seeing conditions were often poor due to Jupiter's somewhat low position in the sky. Dates and times are provided in Universal Time.

Telescope Notes: Up until the SL9 event I had used the 25cm Newtonian primarily for comet hunting. High powered planetary observing wasn't a serious consideration. Related to this was my approach toward collimation. I didn't become critical of collimating the telescope's mirrors until a later date. Later still, I discovered and corrected (masked) a turned edge on my 25cm primary mirror.

Above left: sketched at 2:48 on 20 July. Above right: sketched at 5:05 on 20 July.

Above left: sketched at 3:03 on 21 July. Above right: sketched at 2:40 on 27 July.

Above left: sketched at 2:38 on 1 August. Above right: sketched from 2:24 until 2:45 on 7 August. Io, one of Jupiter's moons, borders the planet's preceding limb.

Links Within this Website

Solar Sketches-----------------------------------Lunar Sketches
Planetary Sketches-------------------------------Planetary Sketches - page 2
Jupiter-SL9 Sketches----------------------------Comet Sketches
Comet Hyakutake Sketches----------------------Comet Hale-Bopp Sketches
Deep Sky Sketches------------------------------Deep Sky Sketches - page 2
Rough Sketches----------------------------------Paintings

Why make sketches?-----------------------------The Art of Astronomical Sketching
Character Sketch---------------------------------Links to Other Websites
Home-made Binocular Mount-----------------Home

Copyright © 2001 William H. Greer
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