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Jupiter 5/7/21

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#1 matt_astro_tx

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Posted 07 May 2021 - 08:14 PM

First attempt using a Barlow this morning. 8” f8 4000mm.  Not stellar work but I caught a shadow on the planet. Assume that’s Io? Maybe?

gallery_357716_16532_9841.jpeg

 

Hoping someone else was imaging and caught a better version of this.


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#2 Kokatha man

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Posted 07 May 2021 - 08:34 PM

It's a start! :) Use WinJUPOS to check the time of your capture against the "activity" on/around Jupiter in the "Ephemerides" section, where there is a graphic display.



#3 Sunspot

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Posted 07 May 2021 - 10:10 PM

I think you got Callisto (the moon, not a shadow) on the planet and Ganymede about to enter onto the disk. I caught it a bit after you. Nice catch!



#4 Ittaku

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Posted 07 May 2021 - 11:10 PM

I caught a shadow on the planet. Assume that’s Io? Maybe?

Grab the stellarium app, or check on the web version of it and you can figure out what it was by putting in the time you imaged it. https://stellarium-web.org/



#5 matt_astro_tx

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Posted 09 May 2021 - 08:05 AM

I think you got Callisto (the moon, not a shadow) on the planet and Ganymede about to enter onto the disk. I caught it a bit after you. Nice catch!


Right you are! Post your pic when you get it processed. I’d love to see it.

#6 matt_astro_tx

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Posted 09 May 2021 - 08:36 AM

Thanks for the tip on WinJUPOS.  I just downloaded it and, after a few minutes was able to get the moon positions.  Seems like a very powerful tool!  I'll be using it to plan future observations.

 

Here's the positions in my photo.

Attached Thumbnails

  • Capture.JPG


#7 Kokatha man

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Posted 09 May 2021 - 07:55 PM

If you tick the checkbox in that window of WinJUPOS (left hand side) of "Ephemerides > Graphics" for "Texturing" you'll get a reasonably accurate depiction of the surface features on the Jovian disk. Click "Shading" also btw.

 

Whilst not entirely accurate - because the constantly-changing details on the disk would make this impossible, some of the more notable features, especially the GRS & moon & moon shadow positions are accurate & worthwhile references. (as are other aspects of WJ used for obtaining accurate position measurements...)

 

When new updates of WJ are put out  it is important to update for this continued "skin" accuracy at times...WJ updates are quite regular & atm I have v12.0.7 which I think is the latest version... lol.gif


Edited by Kokatha man, 09 May 2021 - 07:56 PM.



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