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Finding Jupiter and It's Moons Locations and Times

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9 replies to this topic

#1 patindaytona

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Posted 30 August 2019 - 01:52 PM

Don't know why these timing apps are so far off. I set the date and the time correctly, but when i view Jupiter the moons are no where near what this program shows for their positions.

 

      http://www.skyledge.net/index.htm

 

Times of moons of Jupiter

 

https://s22380.pcdn....phenTab2019.pdf

 

https://s22380.pcdn....ns/jupiter.html

 

Great Red Spot Transit Times on Meridian

 

https://www.skyandte...great-red-spot/

 

Their is another program I found that supposedly shows the position of where to find Ceres. But after the Jupiter and it's  moons programing, i don't know if i can trust it either. It might be way off also.


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#2 aa6ww

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Posted 30 August 2019 - 04:14 PM

I use this site for finding the location of Jupiters moons and transits and eclipses of its moons.

https://www.projectp....com/jevent.htm


Some have said its inaccurate, but its been accurate for me every time I use it.
What I see however is confusion regarding the conversion of UTC time to our local times. This use to be an issue for me till I just decided I have to understand the conversion times for UTC for my location here in California because so many astronomical events are recorded in UCT Times.

I love to watch the Lunar X events so these are always recorded in UCT Times also, and now the Jupiter moon events so I just had to figure out the conversion.

I do use this for the conversion of time from UTC to Pacific time, then again, we have the issue here of Daylight savings time to standard time, so there's even more confusion for some.

https://www.worldtimebuddy.com/

Before you can use this conversion site accurately, you still have to understand it and the dates its listing and understand between the UTC times when it shows one day, and we are in another day because of the differences in time zones.

So far, in every situation I've come across, the astronomical sites that list UTC times for events are accurate within a few minutes.

Hopefully my links give you another option if nothing else. Good luck!

...Ralph
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#3 patindaytona

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Posted 30 August 2019 - 07:44 PM

I use this site for finding the location of Jupiters moons and transits and eclipses of its moons.

https://www.projectp....com/jevent.htm


Some have said its inaccurate, but its been accurate for me every time I use it.
What I see however is confusion regarding the conversion of UTC time to our local times. This use to be an issue for me till I just decided I have to understand the conversion times for UTC for my location here in California because so many astronomical events are recorded in UCT Times.

I love to watch the Lunar X events so these are always recorded in UCT Times also, and now the Jupiter moon events so I just had to figure out the conversion.

I do use this for the conversion of time from UTC to Pacific time, then again, we have the issue here of Daylight savings time to standard time, so there's even more confusion for some.

https://www.worldtimebuddy.com/

Before you can use this conversion site accurately, you still have to understand it and the dates its listing and understand between the UTC times when it shows one day, and we are in another day because of the differences in time zones.

So far, in every situation I've come across, the astronomical sites that list UTC times for events are accurate within a few minutes.

Hopefully my links give you another option if nothing else. Good luck!

...Ralph

Thanks aa6. I can't figure out the UTC one though. Says to place mouse over the time to get it, but i don't see regular time (8:00pm) changing into UTC anywhere.



#4 Boom

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Posted 30 August 2019 - 09:48 PM

I've found this site to be pretty accurate and easy to use.

https://www.shallowsky.com/jupiter/

Edited by Boom, 30 August 2019 - 09:49 PM.

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#5 Ssayer

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Posted 31 August 2019 - 07:49 AM

I've found this site to be pretty accurate and easy to use.

https://www.shallowsky.com/jupiter/

 

Looks good!



#6 mich_al

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Posted 31 August 2019 - 09:11 AM

http://astrosurf.com/rondi/jupiter/  been using it with joy.



#7 REC

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Posted 31 August 2019 - 11:06 AM

I love S&T Jupiter App. Tells you what events are coming and two size charts!



#8 DeanS

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Posted 01 September 2019 - 07:53 PM

Tonights moons are in a position I have never seen before.  4 on the left, in pairs, up an down, not aligned.

 

I don't observe enough to know if this is unusual?

 

Dean


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#9 dhawn

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Posted 01 September 2019 - 11:26 PM

Dean - Yes tonight's moon alignment is interesting and relatively "unusual" but not extremely rare. I make it a point to check out Jupiter and the moons as often as I can, and it never ceases to amaze me the different patterns they take from out vantage point.Spent some time looking tonight, and enjoyed the "trapezoidal" shape.


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#10 patindaytona

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Posted 02 September 2019 - 02:29 PM

I have Stellarium and with the time correct it shows position of Jupiter, etc. Also Ceres. I also found a web site for Ceres, in fact two others, and of all three................each is a little different! I don't know which one is more correct than the other!  They are close, but when you are honing in on something as small as Ceres, it should be consistent. Each might be half degree off from other.

I wouldn't know if I'm looking at a small star, or Ceres.




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