Hi Rob,
The Moon is not really a problem when observing Jupiter. It is true that
yesterday the Moon was close enough to Jupiter that it could have reflected
on the front lens of SCT/refractors or inside the tubes of Newtonian
telescopes, causing some loss in contrast. But other than that, the views
of Jupiter and its moons will be as good as under some dark skies.
Here is a lint to my version of Saturday night's event:
https://photos.smugmug.com/photos/i-W6hwZpD/0/9a9acdd1/O/i-W6hwZpD.gif
Not as big/sharp as Tom's (I need to collimate my scope and buy a crayford
for precise focusing) but I had the advantage of using an equatorial mount,
so the process of taking 164 videos of ~3,000 frames each was mostly hands
off (with a re-centering every 20 minutes or so). Gear: C8 edgeHD +
ASI224mc + CGEM. Processing with Autostakkert, sharpening (wavelets) with
Registax and GIF preparation with pipp.
There will be many more transits/shadow events visible in the next weeks
for people who missed it this past week-end. Also of interest are the "end
of eclipse" type of events, when a moon of Jupiter appears next to Jupiter
(emerges from the shadow of Jupiter). It's like a new star that appears in
front of your eyes, truly a beautiful thing to observe (and no need for a
big telescope). You can find all the information about upcoming events on
the calsky.com website (or with your favorite planetarium software). Now is
really a good time for Jupiter (although it is fairly low on the horizon)
and this is great for those of us who live in the city and can't enjoy deep
sky wonders on a regular basis.
Clear skies!
jf
On Mon, May 28, 2018 at 9:24 PM, <darkmatterinsights@xxxxxxxxx> wrote:
Jean-François, thanks for the notice. I was out last night and it was so
bright from the full moon that I could barely find Polaris and had to use
the big dipper for some of my test shots. Given the proximity of Jupiter
to that big bright moon, I am surprised you could see much of anything.
Rob
-----Original Message-----
From: az-observing-bounce@xxxxxxxxxxxxx <az-observing-bounce@xxxxxxxxxxxxx>
On Behalf Of Tom Polakis
Sent: Sunday, May 27, 2018 9:43 AM
To: az-observing@xxxxxxxxxxxxx
Subject: [AZ-Observing] Re: Don't forget Jupiter tonight!
Jean-François Gout wrote:
Hello Arizona observers,
This is just a short message to tell you about a nice opportunity to
look at Jupiter tonight (Saturday May 26, 2018). The great red spot
will be transiting at
23:20 (local time in Arizona) while Europa will be projecting it's
shadow across the disk of Jupiter between 22h50 and 1h05...
Thanks for JF for the alert. I wheeled my 15-inch scope out into the
driveway to create this sequence of images. Technical stuff follows the
link.
http://www.pbase.com/polakis/image/167550333/original
Capture:
15-inch Dob on platform, 2x Barlow, ZWO ASI174MM camera Recorded 1000
monochrome video frames in R, G, and B colors Every 15 minutes - 36 video
files total
Processing:
Kept best 500 frames from each of the 36 videos in Autostakkert!
Wavelet sharpened 36 files in Registax
Combined 3 color channels for 12 RGB images in Photoshop Also in
Photoshop, registration, levels, curves, color balance, animation
Tom
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