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Full Version: 2020 Dec 21 - Jupiter Saturn Conjunction
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This looks quite exciting since I haven't seen two Planets in the same FOV of an eye piece yet.
Especially the big once... with plenty of moons.
 
Here I am 11 months prior hoping for clear skies.

/Ron
Cool
(2020-02-05, 04:04 PM)theskyhound Wrote: [ -> ]Cool
Oh thank you for this information!
Nice catch. Hey Spider, I hope you live in Australia. At least it will be high in elevation. I live in SE Texas and although I'll be watching this event, I'll have to do it in daylight if I want it to be out of the muck. Jupiter 6.1' separation from Saturn at 18.4UT but on meridian at 14:29LT. the event is a long lasting one so folks everywhere will have the chance to image or view it.

Dec 21 2020 14:29cst
RA: 20h 10m 05.3s
Dec: -20° 34' 21"
Mag: -2.0
Alt: 38.9°, Az: 180.1°
Transit: 14:29
Rise: 09:18
Set: 19:44
I've devised a method to locate this pair during broad daylight. My scopes do not have setting circles or go-To functions. It appears that the two planets will transit from my location ~14:25 and will be too faint to sweep up using my 13" Dob. This is about 2hours after the close appulse that Spider mentions. I plan on centering the nice double star 17CMa at 1:15 or earlier when it is near the meridian. I'll then lock down the scope and simply wait 13h14m51s. At that time, the Saturn/Jupiter pair should be just 4 arc minutes south of my center FOV.

Was wondering how to turn of all the Saturian Moons other than Rhea and Titan. I'm fairly sure that only those will be bright enough to view in daylight in my 13".
(2020-05-18, 03:13 AM)bigmasterdrago Wrote: [ -> ]I've devised a method to locate this pair during broad daylight. My scopes do not have setting circles or go-To functions. It appears that the two planets will transit from my location ~14:25 and will be too faint to sweep up using my 13" Dob. This is about 2hours after the close appulse that Spider mentions. I plan on centering the nice double star 17CMa at 1:15 or earlier when it is near the meridian. I'll then lock down the scope and simply wait 13h14m51s. At that time, the Saturn/Jupiter pair should be just 4 arc minutes south of my center FOV.

Was wondering how to turn of all the Saturian Moons other than Rhea and Titan. I'm fairly sure that only those will be bright enough to view in daylight in my 13".

For SkyTools 4 Visual, use an eyepiece view, either as part of the finder chart or the eyepiece viewer part of the atlas. That's what they are for because these views will only show what can see in the telescope under the conditions. It will also tell you if they will be visible under those conditions.
I was just wondering if there is a way to make the software show where the 4 Galilean moons as well as Rhea & Titan are in relation to the two gas giants. I wanted to determine this without the clutter of all the fainter moons visible in the Interactive Atlas. Maybe a better way to word this, is there simply a way to turn off all the fainter moons from the display? As a challenge, I would like to be able to determine for myself if I can pick up those satellites in my 24" scope when both Saturn and Jupiter can be viewed in the same at 409x.
Hi,

The unofficial motto of SkyTools is: "choose the right tool for the job." In practice, this often means using a different chart, because the reason there are different charts is that they have different purposes. My suggestion was for you use the more appropriate tool for the job. It addresses your question perfectly, just not in the way you imagined.

What you want is the ability to turn off "faint" moons that are not visible, right? But that is exactly what the eyepiece view does. It only shows what is visible. So please consider either using the eyepiece view of the finder chart for your scope, or opening the Eyepiece Viewer on the atlas. This will do what you need.
Hi All,

Well here we are in December 2020 and this appulse is now less than 2 weeks away. Thanks to Spider for catching this event! These planets won't be within 1° again until 14 Mar 2080 according to ST4v.

I hope everyone gets a chance to observe this event.

Clear skies,

Phil S.
Over my 37 years of visual observing, I've been skunked by bad weather more times than I can recall. It seems that only eclipses and grazing occultations have taken more planning than the upcoming close appulse. I would have like to have observed the transit of Jupiter by Mars on Sept. 12, 1170 or the Jupiter occultation of Saturn in 6856 BC. Now those kind of events are incredibly rare. Hope everyone has the best weather but Texas Decembers can be really sour.
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