LtE in CMO #259
From Dr P Clay SHERROD
@ . . . . . . . . . .Sent:
Subject: ASO Jupiter Patrol -
"jupiter0327a"
-
http://www.arksky.org/asoimg/jupiter0327a.JPG
Seeing excellent. Note the incredible blue-gray
festoon/extension from the NEBs into the NEZ just
east of the CM. Also the excellent
detailed fine detail within the NEZ pr. that
area. This area of turbulence is
beginning to increase in both scope and intensity.
@ . . . . . . . .Sent:
Subject: ASO Jupiter Patrol -
Seeing has deteriorated rapidly and equipment
problems are being encountered so I will not be able to image the areas near
the GRS and SSTC white spots at this time....
VERY interesting NEZ feature seen in
this image, however......
"jupiter0327b"
-
http://www.arksky.org/asoimg/jupiter0327b.JPG
Seeing poor. Note the fantastic feature (yellow oval and
associated activity) within the
NEZ, just w. of CM. Also note the dusky
gray-brown oval pr. the GRS and within the s. edge of the SEBs,
just w. of CM
@ . . . . . . . .Sent:
Subject: ASO Jupiter Patrol -
Seeing is very poor and variable; focusing
very tough but first clear evening in over two weeks for imaging!
"jupiter0401a"
-
http://www.arksky.org/asoimg/jupiter0401a.JPG
Seeing very poor. Interesting dichotomy within the north and
south halves of the
"jupiter0401b"
–
http://www.arksky.org/asoimg/jupiter0401b.JPG
Seeing very poor. Two very nice and interesting dusky ovals in
this image....note the one embedded in the s. edge of the SEBs
right on the CM (about 345d II); another VERY
prominent oval (or is it
perhaps TWO) is visible
west of the CM in the NEZ...it is very large and dark and shows development since
last seen (System I).
@ . . . . . . . . Sent:
Subject: ASO Jupiter - Last Send for April 1 UT
Well, April 1 has come and gone almost like a
bad April Fool's joke.
The sky was beautifully clear and crisp with the moon not interfering
until after about
"jupiter0401c"
-
http://www.arksky.org/asoimg/jupiter0401c.jpg
Seeing worst possible, with Jupiter
viewed behind trees to west. Very
distinct bluish oval area in NEZ near CM in this image; this has been noted on
earlier dates. Note the very dusky
activity south of the GRS.
@ . . . . . . . .Sent:
Subject: ASO Jupiter Patrol -
Fortunately, one small opening of
"fair" seeing conditions allowed the attached image....immediately
after the seeing was such that focusing was not even feasible.
This image shows some areas of considerable
interest. The image (for those not
receiving it direct) is found at:
http://www.arksky.org/asoimg/jupiter0404a.JPG
Note the areas:
1) south edge of the NEBs, just west
of the CM....this is the vividly "blue/gray" festoon that was
reported last week; it is
scintillatingly bluish to the eye and very vivid on raw images. Note that a similarly-colored festoon is
oriented due N-S connecting the NEBs edge with the EB
right on the CM in this image.
2) very dark/dusky oval
immediately pr. the pr. end of the GRS, just east of CM.
3) the very turbulent nature of
the STrZ immediately pr. the GRS leading eastward to
the very well defined oval on the s. edge of the SEBs,
having a very distinct "feathered" border (this is seen east of the CM).
4) nature of the white ovals
immediately south and preceding the GRS in the SSTC.
@ . . . . . . . .Sent:
Subject: ASO Jupiter Patrol - April 5 UT
"jupiter0405a"
-
http://www.arksky.org/asoimg/jupiter0405a.jpg
Seeing poor. Two areas of much interest
in this image. First is the
activity that appears to be increasing within the STZ and the SSTC, with some
degree of interacting currents demonstrated near the CM.
In the southern half of the
"jupiter0405b"
http://www.arksky.org/asoimg/jupiter0405b.jpg
Seeing continued poor. Continuing to demonstrate
very nice delineation of north and south components of the NEB.
@ . . . . . . . . Sent:
Subject: ASO Jupiter Patrol -
A couple of nice
image preceding the GRS prior to Jupiter sinking low in the west and turbulent
air preceeding a massive warm front headed our
way...More Rain!!
"jupiter0406a"
http://www.arksky.org/asoimg/jupiter0406a.jpg
Seeing poor to fair - Some
nice activity and detail visible within the SSTC and southern latitudes. Note the very wide and deep NEBs rift curving westward at the CM. Very beautiful indentation effect of barge on
far left limb. Much interesting activity
within the NEZ!
"jupiter0406b" -
http://www.arksky.org/asoimg/jupiter0406b.jpg
Wonderful activity seen preceding and south of the
GRS.
"jupiter0406c"
-
http://www.arksky.org/asoimg/jupiter0406c.jpg
Seeing the worst and Jupiter very low in the
western sky; haze is causing the noticeable discoloration. Some nice contrast features are visible,
however, in the STrZ around and south of the GRS as
well as in the NEZ.
@ . . . . . . . . Sent:
Subject:
Comet Conjunction Reminder!
A quick note to
all reminding of the upcoming "comet conjunction" that should be of
much interest on April 30. The comets Ikeya-Zhang
and Snyder-Murakami will be
within about 3 degrees of one-another in pre-dawn morning skies at about
I have detailed the summary of this on the ASO
site (Current News) at:
http://www.arksky.org/cgi-bin/readnews.pl
It will be a
challenge, but when else are you going to have two notable comets in so close a
span of sky??
@ . . . . . . . . Sent:
Subject: ASO Jupiter Patrol -
Very clear, but seeing is markedly variable
tonight; imaging impossible after this image was recorded due to turbulent air.
"jupiter0410a"
-
http://www.arksky.org/asoimg/jupiter0410a.jpg
Seeing fair but variable. Note the very distinct dichotomy of the
southern and northern 1/2 of the
@ . . . . . . . . Sent:
Subject: ASO Jupiter Patrol -
A brief spell
of very transparent but turbulent air allowed for only two images, both take
with adverse seeing conditions....
However, note the very large and distinctlyl bordered OVAL just west and south of the
GRS....it appears in due order to be in for a similar encounter to that of BA during
previous months...
Some high res. details of this feature would
be very valuable at this point....
"jupiter0411a" -
http://www.arksky.org/asoimg/jupiter0411a.JPG
Seeing poor and unsteady. Note the now-closing nature of the
appears to be more
divided that in past weeks.
"jupiter0411b"
-
http://www.arksky.org/asoimg/jupiter0411b.jpg
Seeing very poor; focusing difficult. Note the very large and circular oval in the
SSTC immediately south and following the GRS...appearing very much in
character, morphology and size to the oval BA in previous months. Very curious development!
@ . . . . . . . . ･･･････Sent: Friday, April 12, 2002 1:25 AM
Subject:
Re: ASO Jupiter Patrol -
Yes John, I suspect you may be right....I
personally view this as a "void" rather than a physical oval at this
time....nonetheless it is an interesting scenario as to the development of such
featureless areas of so great a size - particularly amidst the turmoil of this
particular latitudinal current in the vicinity right now!
Very interesting stuff
this apparition!
---------0riginal
message---------------
.Sent:
Subject: Re: ASO Jupiter Patrol -
>
> Hi Clay,
>
> Thanks for those images. The striking appearance of a 'new white oval'
> Sf. the
GRS seems to be explained if you look at Antonio Cidadao's
images
> on the
same day, which have somewhat higher resolution. It seems to be a
> featureless
white area, without any oval outline, immediately f. the tiny
> anticyclonic ring.
It could be either a cyclonic white spot with no
> border, or
an amorphous patch of white cloud such as sometimes encroaches
> on the STB
just S of the GRS.
> I suspect it will not persist; as
Antonio and you have noted, there are
> various
ephemeral changes in the STB as features in it pass the GRS.
> However, time will tell!
>
> Best regards,
> John.
>
@ . . . . . . . . Sent:
Subject: ASO Jupiter Patrol -
"jupiter0412a"
-
http://www.arksky.org/asoimg/jupiter0412a.JPG
Seeing fair.
Note the nice oval within the SSTC near the CM and the related festoon
following it. Very interesting southward
lateral shift to the NEBn and narrowing of the entire
P Clay SHERROD (
