Jump to content

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Transit of Europa's shadow on Jupiter (aug 21)

This topic has been archived. This means that you cannot reply to this topic.
8 replies to this topic

#1 Roel


    Viking 1

  • -----
  • topic starter
  • Posts: 573
  • Joined: 22 Apr 2007

Posted 21 August 2010 - 08:27 AM

Jupiter isn't visible very long from my backyard, so I had to get out of bed early (at 4) to view the planet with my 4" f/15 refractor. It would be the first view of Jupiter through this telescope, so I did not quite know what to expect.

It absolutely stunned me! The view was crispy crispy crispy sharp and magnification of 300x were possible. The view through my 6mm ortho turned out to be the most pleasant.

Very distingtive was the bright patch in the southern(?) equatorial belt. And of course the shadow of Europa, which also made this observation the first shadow transit ever for me. Totally by change, I didn't know there there would be one!

(White and black pastel on black paper. Disk aprox. 3 inch)


#2 JanisR


    Vostok 1

  • -----
  • Posts: 179
  • Joined: 26 Jun 2008

Posted 21 August 2010 - 10:20 AM

Great sketch, especially for the first time out! I am enjoying flipping back and forth between yours and Jef's. Thanks for sharing it.

#3 JimPie


    Viking 1

  • -----
  • Posts: 522
  • Joined: 10 Nov 2007

Posted 21 August 2010 - 11:16 AM

Nice sketch of Jupiter- Europa shadow transit.Well done!

#4 Jef De Wit

Jef De Wit


  • *****
  • Posts: 3096
  • Joined: 06 Mar 2009

Posted 21 August 2010 - 02:57 PM

It's hard to get out of bed... but when you know there are other crazy guys doing the same thing, it helps :)
Fine sketch and report. It must be a hell of a surprise to see the shadow. I knew there was a transit, so no surprise for me.

#5 Special Ed

Special Ed


  • *****
  • Posts: 7512
  • Joined: 18 May 2003

Posted 21 August 2010 - 04:07 PM


Congratulations on this record of your first shadow transit--these transits are very cool to see. Also very cool that you and Jef were out on the same night. :)

I will post my sketch from a few hours after your observation soon. Since Jupiter has not yet reached opposition (due in one month, Sept 21st), the shadow preceeds the actual moon transit. I did not see the shadow transit but did see the end of Europa's transit. [After opposition, the moon will transit first, followed by its shadow.]

#6 frank5817



  • *****
  • Posts: 9178
  • Joined: 13 Jun 2006

Posted 21 August 2010 - 10:15 PM


Very impressive view of Jupiter and Europa transit.
Excellent work.

Frank :)

#7 CarlosEH



  • *****
  • Posts: 7638
  • Joined: 19 Jan 2005

Posted 22 August 2010 - 12:46 PM


An excellent observation of Jupiter and a transit of Europa (II). You have recorded fine detail over the planet. The transit (Europa) is well rendered. Thank you for sharing it with us all.


#8 dweller25


    Surveyor 1

  • -----
  • Posts: 1602
  • Joined: 30 Aug 2007

Posted 22 August 2010 - 02:07 PM

Great drawing Roel. Nice scope too :-)

#9 mikesemmler



  • -----
  • Posts: 415
  • Joined: 01 Jun 2009

Posted 23 August 2010 - 12:51 PM

good job -


CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Recent Reviews

Imaging/Sketching Contest

Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics