A publication of the Jupiter Section of the Association of Lunar and Planetary Observers
Copyright (c) 2007
Vol. 9, No. 2 August 2007
Jupiter was at Solar conjunction on November 21, 2006.
Jupiter reached opposition on June 5, 2007.
Jupiter returns to conjunction on December 22, 2007
For this month’s account of recent Jupiter activity, I can’t improve on the comments from John Rogers (Jupiter Section Director, British Astronomical Association) on ALPO_Jupiter. I have paraphrased Mr. Rogers just a bit.
There are two small but interesting new
bright outbreaks. One is a rift in SEB(N), on the CM at L1=38: this is a
revival of the rift in the S. Equatorial Disturbance after it has passed the
GRS. (This phenomenon was frequent in earlier years, but in recent months the
SED has become a long quiescent white area with no rift. The renewal of the rift might be due to the
reappearance of convective activity following the GRS.)
The other is a bright white spot on NEBn,
near L2=50. This is a revival of white
spot Z. (White spot Z is the long-lived
fast-moving anticyclonic white oval on NEBn.
In 2007 April-May, after the NTB outbreak passed it, it suddenly
decelerated and became a ragged grey patch, almost disappearing. Now this
bright white spot has popped up: will it re-establish the white oval?)
There are other interesting slower developments in the belts at
these longitudes, showing the progress of the global upheaval: The NTB is still
reddish. The SEB(S) is now dark and
also reddish. It has extended quietly past STrD-1 and is spreading rapidly
towards the GRS; so this sector of SEB will also revive, but peacefully.
The Equatorial Zone is not as dark as it
was in recent months.
Submission of Observations
Note to imagers: Please put your name, UT date, UT time, and CM1 and CM2
on all images.
Please submit observations as directed below: Mail CM transit timings monthly to: John McAnally 2124 Wooded Acres Waco, TX 76710 E-mail: CPAJohnM@aol.com Mail photographs and images at least monthly. We prefer e-mail attachment of JPG image. Damian Peach Calle Dr. Guigou 18 Urbanizacion Las Aguilas 38400, Puerto de la Cruz Tenerife, Spain. E-mail: dpeach_78@yahoo.co.uk To share observations use the E-mail network, ALPO_Jupiter. To subscribe: E-mail ALPO_Jupiter-subscribe@yahoogroups.com Mail observations of the timings of eclipses of Jupiter's satellites to: John E. Westfall P.O. Box 16131 San Francisco, CA 94116 E-mail: johnwestfall@comcast.net
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Newsletter Editor: Craig MacDougal, Assistant Coordinator, ALPO Jupiter
Section
Email: macdouc@verizon.net