james royce
member
Reged: 03/28/08
Posts: 28
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i have recently been observing jupiter with a 4" "mak-cas" and since jupiter does sit low toward horizon(i am at 40 dg. n.)what filter would best negate at least some amospheric distortion and what would best enhance contrast on planet surface?? i used a yellow filter yesterday and seems to help some(wishful thinking!??ha!)thanks jim 
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Tommy5
Pooh-Bah
Reged: 03/28/04
Posts: 1371
Loc: Chicagoland
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I like using the yellow-green #11 to se the festoons better, the lt.green #58 also works to see the bands better, a 82a pale blue is also nice to see the bands darker.
Edited by Tommy5 (07/20/08 11:16 PM)
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Midnight Dan
sage
Reged: 01/23/08
Posts: 301
Loc: Brockport, NY
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Nothing will negate the atmospheric distortions, but you can certainly enhance the contrast of the bands with a #82A. A #80A would be even better, but it's a lot darker than the #82A and I'm not sure if it would make things too dark given your 4" aperture.
-Dan
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Celestron NexStar 8
Telrad
Celestron 40mm and 25mm eyepieces
Baader Hyperion 13mm, 8mm, 5mm eyepieces
2x Barlow
Meade 0.63x Focal Reducer/Field Flattener
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Wobrak
super member
Reged: 04/18/08
Posts: 181
Loc: SC, USA
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Here's a link that was provided in another thread of the same subject.
The Use Of Filters in Visual Astronomy
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Karl
Zhumell 20x80 Binos
Zhumell 10" Dob
WO 28mm UWAN
TV 13mm Ethos
TV 8mm Ethos
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scopethis
super member
Reged: 05/30/08
Posts: 188
Loc: Kingman, Ks
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I've used both the 80A and the #11 yellow-green in a 4" Mak. Each will work fine.
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spencerj
professor emeritus
Reged: 11/17/04
Posts: 557
Loc: Derry, NH
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A vote for the 82A. I will have to try the #11 yellow-green.
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--Jason
"I am the victim of a series of accidents, as are we all." --Kurt Vonnegut Jr.
Intes-Micro MN66 with Moonlight CR1 focuser
TeleVue 102
PST
Unistar Deluxe with TeleVue Sky Tour
CG-5 ASGT (quieted and tuned-up by Trapezium Telescopes & Services)
10" Orion Dob
15x70 Oberwerk Binos
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Nick Lloyd
Carpal Tunnel
Reged: 10/24/06
Posts: 1536
Loc: cincinnati
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Althought it isn't a "color filter", the Baader Moon & Skyglow filter does a very nice job on Jupiter.
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"The best scope is the one you use." -rcg
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werewolf6977
Lord High Smasher
Reged: 12/15/03
Posts: 7037
Loc: Hanover, Ohio
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A variable polarizer helps with Jupiter (and Saturn too) by reducing the amount of glare. Dial it in to where the image is not so bright, and things like bands, the GRS "well" will stand out better.
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Pete
6" Apogee/LXD55 - "The Beast"
Starhopper 6" Dob - "Shiva"
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The Abomination
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One ratty old IBM 600E LapTop
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DanJ
Pooh-Bah
Reged: 12/01/04
Posts: 1014
Loc: Youngsville, NC
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I like to use a section of my VPF. It just darkens the image ever so slightly, but it seems to enhance the viewing.
Cheers!
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Dan J.
XT8i
ETX 90
PST
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john D
All you have to do is ask!!
Reged: 08/05/07
Posts: 4209
Loc: Midlothian, VA
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you can get some filters here they are great quality filters! i have a few of them and they work great! 
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Meade ETX-125EC (SEPT.7)
Orion 90mm mak-Cass (4SALE look in S&S)
Celestron NS GOTO mount (4SALE look in S&S)
Philips SPC900NC webcam
MY BLOG
 -Midlothian VA
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edl
super member
Reged: 06/24/04
Posts: 104
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I generally dislike filters for observing, but the Baader Moon & Skyglow filter does make seem to improve the contrast on Jupiter.
Ed L.
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john D
All you have to do is ask!!
Reged: 08/05/07
Posts: 4209
Loc: Midlothian, VA
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Quote:
I generally dislike filters for observing, but the Baader Moon & Skyglow filter does make seem to improve the contrast on Jupiter.
Ed L.
thats normally the filter i use viewing anything. its a good filter. and at a great price!
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john D
All you have to do is ask!!
Reged: 08/05/07
Posts: 4209
Loc: Midlothian, VA
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and it looks like its on sale right now--Baader Planetarium Moon & Skyglow Filter
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Meade ETX-125EC (SEPT.7)
Orion 90mm mak-Cass (4SALE look in S&S)
Celestron NS GOTO mount (4SALE look in S&S)
Philips SPC900NC webcam
MY BLOG
-Midlothian VA
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ducatirob
sage
Reged: 06/15/05
Posts: 424
Loc: Centerville, Ohio
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80A filter works for me. I also have a Baader Moon+Skyglow filter. I think for the money you will be happy with the 80A, I also use it for viewing the Moon . I like it a lot. Hope this helps
Rob
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C6-R /Atlas EQ
Meade 90mm refractor
Meade AR-5
10x50 binocular
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WNCAGC
sage
Reged: 06/25/08
Posts: 239
Loc: NC Mountains (God's country)
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I have even used the moon filter out of curiosity and it worked as well. My avatar is a photo I took of Jupiter with my 4SE that was enhanced slightly!
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WNCAGC (Western NC Airgun Club)
PO Box 795
Weaverville, NC 28787
CPC 1100 XLT "The Big Monster"
Power Tank 17
NexImager
2" Smart Astronomy 10:1 dual speed Crayford focuser
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Bob's Knobs
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