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Jupiter, Saturn and the magic 1/2 hour, and Mars, 20&22 Oct

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#1 HentySky

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Posted 27 October 2020 - 03:57 AM

Attached are a few images I took a few days ago.  Jupiter and Saturn were taken during that magic 1/2 after sunset when the atmosphere is so still.

 

On Jupiter it appears the chimney is getting close to closing and there is the appearance of a red streak of fire just trying to squeeze through.  Speaking of illusions, the oval just below the GRS looks like a steam train racing along with the smoke pouring out (I must have been on the good stuff last night!!).

 

Saturn as usual is very quiet.  There is a small white spot at mid northern latitudes just right of centre but that's about it.

 

The two Mars images were taken on the same night and show the cap getting ready to divide in 2.

 

Thanks for looking.

Attached Thumbnails

  • Jupiter 2020-10-22-1101b.jpg
  • Saturn 2020-10-22-1118.jpg
  • Mars 2020-10-20-1351.jpg
  • Mars 2020-10-20-1506.jpg

  • Sunspot, Magellanico, lukasik and 28 others like this

#2 tjschultz2011

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Posted 27 October 2020 - 04:27 AM

Very nice! I have that same ASI290mm camera but have yet to try imaging planets. I assume you're using a barlow or powermate? A 2x or even higher power?



#3 Vega700

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Posted 27 October 2020 - 04:46 AM

Great set of images Brett, your finest Mars this season. I gave up on Jupiter and Saturn, but these are excellent. It shows again the seeing we get here in WA. Well done.waytogo.gif



#4 HentySky

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Posted 27 October 2020 - 05:06 AM

Tjschultz, with the C14 F11 I use an adjustable barlow set to 1.25 for Jupiter and Saturn and 1.4 for Mars.  This gives me approximately 200 pixels across for Mars.

 

Luke, Jupiter an Saturn are nearly gone, I have to shoot them just after sunset.  Not sure if you imaged last night but it was the best seeing for Mars so far.  Will take a day or two to process the images.



#5 Vega700

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Posted 27 October 2020 - 06:11 AM

YES Brett, last night was excellent up to midnight when slowly clouds came in. I managed to push up to F26 and was still very steady indeed.



#6 Foc

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Posted 27 October 2020 - 07:09 AM

Lots of fine detail on Mars.  Great optics, showing Saturn storms so late in the season.  Great to see the activity around the GRS,

 

Probably a silIy question but is any of the darkening around the edges and belts of Jupiter due to an actual color change or is it just altitude and increasing distance?


Edited by Foc, 27 October 2020 - 07:10 AM.


#7 sunnyday

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Posted 27 October 2020 - 07:26 AM

superb details , very nice , thanks .



#8 Toddeo

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Posted 27 October 2020 - 08:28 AM

HentySky, Beautiful captures!!!bow.gif    can I ask, what is the make of the  "adjustable" barlow that you use?   Thanks.



#9 HentySky

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Posted 27 October 2020 - 10:14 AM

FOC, I didn't notice the edge darkening, I just saw the train and missed everything else!

 

Toddeo, I use a Siebert 1.25 to 1.7 adjustable barlow.  I also have 2x and 3x barlows but never use them, the adjustable is all I need.



#10 HentySky

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Posted 27 October 2020 - 10:14 AM

FOC, I didn't notice the edge darkening, I just saw the train and missed everything else!

 

Toddeo, I use a Siebert 1.25 to 1.7 adjustable barlow.  I also have 2x and 3x barlows but never use them, the adjustable is all I need.



#11 Kiwi Paul

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Posted 27 October 2020 - 02:01 PM

Wonderful images. Thanks. I hope to catch Jupiter and Saturn again before they are gone if our weather will ever settle down - unlikely for a month or two because we in what is called the Equinoctial Gales season - the transition from winter to summer.
Cheers Paul

#12 Yu Gu

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Posted 27 October 2020 - 02:09 PM

Great photos! I also found the half an hour after sunset (especially in summer) often offer great seeing. Anyone knows why?



#13 stuart keenor

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Posted 27 October 2020 - 04:35 PM

Outstanding Brett 👏hope you’re well regards stuart

#14 R Botero

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Posted 28 October 2020 - 03:12 AM

Magical indeed! Simply superb bow.gif waytogo.gif

 

Roberto



#15 HentySky

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Posted 28 October 2020 - 03:28 AM

Good to hear you Stuart, hope your family and you are all well.  We have been having fantastic seeing here this season, it's a pity your trip hadn't corresponded with this weather.

 

Yu Gu, from my limited knowledge there are two forces at play.  Just after sunset occurs the change in direction of heat exchange between ground and atmosphere.  At my location which is on a ridge there is also a balance between the sea breeze and a katabatic wind at the same time.


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#16 JMP

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Posted 28 October 2020 - 11:01 AM

Wow, Brett!!! Fabulous images!!!

#17 Kokatha man

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Posted 28 October 2020 - 06:46 PM

Very nice images again Brett! waytogo.gif waytogo.gif waytogo.gif

 

I thought about Jove a couple of times these last few nights - it's still riding high - but cooling the scope to image right after sunset & then making sure it's around ambient again at 11pm has had me not bothering...I've decided that more discrete imaging opportunity-selecting is the way to go for our ageing bones..! :lol: ;)




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