Jupiter Double shadow transit 2 Aug

[kerrylewis]

Double moon shadow transit this evening from 21.19 to 21.58. Io and Europa 

[John]

Thanks Kerry

Rather cloudy here just now. Fingers crossed for this evening though !

[kerrylewis]

2 hours ago, John said:

Thanks Kerry

Rather cloudy here just now. Fingers crossed for this evening though !

OK John. Forecast is good here so hopeful given some reasonable seeing.

I am following the SW 150ED debate with interest  - never be able to sell my Vixen 150 now! ?

[John]

Clear skies here now. ED150 is back in it's packaging though so I will try the Tak FC-100DL tonight I think.

[Pete Presland]

Thanks for the heads up, should be an interesting view clouds permitting.

[Stu]

Thanks Kerry. Looks mixed but probably clear enough so will give it a go with the newly collimated Mak  

[jock1958]

Thanks Kerry, clear skies here just now ?

[AdeKing]

Thanks Kerry, looking like a clear outlook for tonight here.

[John]

Both shadows on the disk now. And Io itself if you have sharp eyes

 

[kerrylewis]

Both shadows here too although the seeing is variable. Hope to see Io as to gets to the limb 

[Saganite]

Not a million miles from you Kerry, and the sky is cloudless , though the seeing is not wonderful. I am giving the 12" Dob an airing tonight, and at the moment I can only pick up one shadow.

[Saganite]

Unfortunately, it is now lost behind the roof of the bungalow behind me. I only saw a single shadow, as for the last 15 minutes or so the seeing became so bad that Jupiter looked as though a stream was flowing over the disc. So onto Saturn and decent darkness.

[David Levi]

I missed Europa, but the shadow of Io looks good. Going back out to see if I can see Io itself.

[Stu]

Wobbly seeing for me too here, though at least clear. Io’s shadow was clear, Europa’s only visible when the seeing steadied.

[david_taurus83]

I was set up in time but the seeing was woeful due to the neighbours boiler flue. After it passed over I could see the shadow of Io but not the moon itself as it went behind some trees to my West. The view of Saturn made up for it though.

[AdeKing]

I couldn't pick out Europa's shadow or the Io transit as I set up a bit late but Io's shadow was clear enough in moments of good seeing with the 100ED.

Ade

 

[Saganite]

The seeing around the time of the shadow transits was not good and I too saw only the one, and then in brief spells, but later, Saturn was pretty awesome.

[dweller25]

Cloudy for me !!! ?

[Pete Presland]

A pretty decent view from here in Bedfordshire. The transit was well under way when I started watching, watched it until the large Christmas tree intervened.

[Stub Mandrel]

I saw Io's shadow, but I couldn't see Io. I think I was too late for Europa's shadow.

[John]

2 hours ago, Pete Presland said:

.... watched it until the large Christmas tree intervened.

With the planets so low down currently from the UK you never know what might creep into the field of view while you are concentrating on tracking

[GordonD]

I did manage to catch both shadows, which was fun as I had not been aware it was happening beforehand. But I could not see Io itself on the face.

My, but Saturn was sharp and detailed that evening though! 

And pretty good last night too.

Managed to catch Mars for the first time last night as well, but could only pick out the polar caps and some degree of greyness in the southern (?) hemisphere - no real detail.

[Stub Mandrel]

3 hours ago, GordonD said:

My, but Saturn was sharp and detailed that evening though! 

It was good to see the Cassini division with my own eyes!

[kerrylewis]

5 hours ago, GordonD said:

I did manage to catch both shadows, which was fun as I had not been aware it was happening beforehand. But I could not see Io itself on the face.

My, but Saturn was sharp and detailed that evening though! 

And pretty good last night too.

Managed to catch Mars for the first time last night as well, but could only pick out the polar caps and some degree of greyness in the southern (?) hemisphere - no real detail.

Hello Gordon 

I’m glad that you managed to see the shadow transits and you did well with other planets  too. It is very very difficult to see the moons themselves against Jupiter. Sometimes you can be lucky if they are against a dark band but usually the best time is as they approach the planet’s limb which is slightly darker- it’s then fascinating to see them leave and part from the disc itself. 

 

[kerrylewis]

I should clarify that Calisto and Ganymede are darker than the others and can be visible as they cross the planet. In fact they can be mistaken for a shadow. However they transit much less often than the other two Galilean moons.