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Saturn Image 2002/10/22(UT)
Damian Peach
D.Peach
Damian Peach (12" (30.5cm) Meade SCT @ f/21.0. ST-5c camera)
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D. A. Peach, Puerto de la Cruz, Tenerife, Canary Isl.
11" (28 cm) Celestron SCT @ f/31.4. SBIG ST-5c camera.
SBIG RGB Filter set.
Total Exposure Times:
Integrated Light: 120 x 0.38 secs
Red Light: 10 x 0.60 secs
Green Light: 10 x 0.60 secs
Blue Light: 15 x 0.60secs
Seeing generally excellent (7-10.)
Transparency v. good (5.0mag+), with ocassional high cirrius from NW.
Wind ENE (0-5mph.) No dew.
Equatorial Diam= 19.6"
Altitude=54 degs.
Here all all the images from the 22nd processed for a high contrast appearance, and also a small
animation. Features can easily be noted rotating across the EZ.
Yet again!, i am moving apartment tomorrow (to the very southern tip of the island) much closer
to our workplace. The new site has an ocean horizon from E to W, from a roof patio at about
20m above the ground (the new "observatory".) Will be able to continue imaging as usual, but
wont be online again until next week.
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Hi all,
Here are some Saturn images from the morning of the 22nd. Very good seeing allowing some
spectacular views visually at 600x. I also attach a small high-contrast version showing the
belt/zone structure clearly.
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Hi all,
Since the weather has been poor the last 3 days, i
decided to re process some Saturn data from
October 22nd - but using the best frames aquired over
a period of around 30 mins to produce a
pictorial image of the Planet, which can be used to
show the belt/ring structure, but not transient
features.
The result is, i feel my finest image of any Solar
System object to date. Here is the image information:
Celestron 11" (28cm) SCT @ f/31.4 (0.23"/pixel.)
SBIG ST-5c camera, from Puerto de la Cruz, Tenerife.
Integrated Light: ~160 x 0.35 secs.
Red Light + IR Rejection: ~40 x 0.45secs
Green Light + IR Rejection: ~30 x 0.45secs
Blue Light + IR Rejection: ~45 x 0.50 secs.
Features revealed include the 0.05" Encke Division,
the dark 2000km south polar cap, and several
ring B albedo minima. Also, many fine belts/zones
across the globe can be identified.
I also suspect the image shows a slight colour
assymetry to the ring system, across the part of
ring A where is crosses the Planet.
I think it must be close to the limit of what the 11"
can produce, but its also pleasing that the scope
was able to capture a clear view of one of the sky's
most wonderful objects.
Fingers crossed something of similar resolution can be
produced of a 25" Mars :).
Best Wishes
Damian
[Rochester, Kent, UK.]
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