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Jupiter April 11th 2018 - Bangkok

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#1 Tizianobkk

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Posted 12 April 2018 - 07:44 AM

Dear all,

after a long absence I've finally completed my new telescope, and I was blessed with a good night. It took me almost two years to design and build the telescope, a DK 505 mm f/20,

in fact a larger version of my previous 410 mm DK. However moving to 20" is a giant step, the mirror is 60 mm thick and heavy, therefore it requires a solid structure. I'm still using my trusty AP1200, it's at the limit but working fine.

This is probably my best image of Jupiter, I moved to a new camera, Point Grey GS3 with Sony IMX252 with larger image scale and lower noise.

Thanks for the attention and best regards

Tiziano

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#2 Tizianobkk

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Posted 12 April 2018 - 07:45 AM

Attached a picture of the telescope, compared to my daughter Cristina

Regards

Tiziano

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  • Cristina + tele.jpg

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#3 Sunspot

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Posted 12 April 2018 - 08:05 AM

I have been anxious to see how this scope does in good seeing and all I can say is bow.gif bow.gif bow.gif 



#4 Marco Lorenzi

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Posted 12 April 2018 - 09:07 AM

Autstanding Tiziano! One of the best images of Jupiter I have ever seen!

Marco


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#5 Jimmy462

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Posted 12 April 2018 - 09:13 AM

Hi Tiziano,

 

Wowee, what an incredible image of Jupiter! Bravo on that image and all the hard work that went into creating the telescope platform to accomplish it! :D

 

Is this a single exposure or a stack of images?

 

:)

Jimmy G



#6 Tizianobkk

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Posted 12 April 2018 - 09:20 AM

Thank you very much Paul, Marco and Jimmy.

The image is the derotated sum of 3 RGB, one minute for each channel.

Best Regards

Tiziano


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#7 CosmicLettuce

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Posted 12 April 2018 - 09:38 AM

All that obvious hard work has payed off!  Fantastic!



#8 Max Lattanzi

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Posted 12 April 2018 - 09:57 AM

Congratulations Tiziano...!

 

Great setup and even greater tuning on your end.

Wonderful image: it is rare to see Equatorial Festoons so smoothly rendered and still so detailed.

 

Again congratulations...!

-- Max

 

PS/ The good old AP1200 still kicks... wink.gif



#9 PrestonE

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Posted 12 April 2018 - 10:07 AM

What a wonderful scope and seeing too!!!

 

Congradulations on this very fine image, likely the best I have seen to date waytogo.gif waytogo.gif waytogo.gif waytogo.gif waytogo.gif

 

Very Best Regards,

 

Preston



#10 wargrafix

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Posted 12 April 2018 - 10:08 AM

\end game

\take win

 

We normally hear comments about best Jupiter image so far. BUT THIS IS  THE BEST JUPITER IMAGE SO FAR!!!!!!!!


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#11 gcardona

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Posted 12 April 2018 - 10:09 AM

Wow! That AP1200 looks small!



#12 wargrafix

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Posted 12 April 2018 - 10:13 AM

How was the seeing?

 

That setup needs to visit Barbados or humbly, Trinidad.



#13 Tizianobkk

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Posted 12 April 2018 - 10:16 AM

Thanks a lot for your kind comments,

Max the AP1200 is an old 2002 model but still strong. I completely re-grease it when I changed the telescope, I might upgrade for the AP1600 but not soon.

Regards

Tiziano



#14 Tizianobkk

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Posted 12 April 2018 - 10:20 AM

Hi wargrafx,

the seeing was very good, with southern winds blowing from the see, those are the best condition in my home.

Clearly this is a fix setup, with a total weight of more than 200 kg it'll permanently reside on my balcony grin.gif

Tiziano


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#15 Max Lattanzi

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Posted 12 April 2018 - 10:27 AM

Max the AP1200 is an old 2002 model but still strong.

I know wink.gif

 

Nonetheless, that DK (and you!) truly deserves an AP1600.

I don't think it would change the quality of your images, but certainly the quality of your Astronomical life! cool.gif


Edited by Max Lattanzi, 12 April 2018 - 10:28 AM.


#16 Traveler

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Posted 12 April 2018 - 10:28 AM

Amazing!



#17 wargrafix

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Posted 12 April 2018 - 10:50 AM

Hi wargrafx,

the seeing was very good, with southern winds blowing from the see, those are the best condition in my home.

Clearly this is a fix setup, with a total weight of more than 200 kg it'll permanently reside on my balcony grin.gif

Tiziano

Gotta love that laminar air!!!!!!!!!!!!!

 

Where i live its on the plains and dead steady at 60degrees and above are not uncommon. We have seeing that competes easily with babados. There are rare moments when targets are 15degrees off the horizon and are dead steady on a 9.25 at f30. But those are rareeee moments.

 

You ave an excellent setup and the oppositions to come will be spectacular



#18 sfugardi

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Posted 12 April 2018 - 11:17 AM

Tiziano, Stunning image and scope! Congratulations all around. Thanks for posting

 

Regards,

Steve



#19 TonyStar

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Posted 12 April 2018 - 11:20 AM

Tiziano, definately worth the effort and congratulations on another world-class imagewaytogo.gif waytogo.gif waytogo.gif . It seems there is a gain in resolution compared to the 410DK but hard to tell without side-by-side comparison...



#20 BKBrown

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Posted 12 April 2018 - 11:32 AM

Absolutely brilliant, congratulations on the new scope and the image waytogo.gif

 

Clear Skies,

Brian



#21 Faber

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Posted 12 April 2018 - 11:44 AM

Tiziano,

 

your images are always outstanding and you know, we are speechless.

Considering your seeing and the elevation of planets on the horizon, you can consider a scope as big as you can manage smile.gif

I have two questions:

 

1) Do you observe sometimes through the scope with a binoviewer or a single eyepiece? 

2) I see you have the Point Grey GS3 with Sony IMX252. I'm curious about this camera, to use with my Takahashi Mewlon for example. Do you think the noise and quality image step up are relevant?

Thank in advance and please continue to image, your are an inspiration and a dream for North Hemisphere amateur astronomer.

Bye

 

Fabio



#22 John Boudreau

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Posted 12 April 2018 - 02:29 PM

Absolutely fabulous result, and congratulations on the new scope Tiziano! waytogo.gif

Are you using the new camera at the scope's full 10,500mm FL? That would be a sampling of 0.068"/pixel !!!

I've been thinking of a camera using the slower and less costly version of the IMX252sensor, the IMX265. But I've got a 368mm F/18 D-K with a FL of "only" 6630mm! grin.gif



#23 kevinbreen

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Posted 12 April 2018 - 03:18 PM

Oh

My

God

#24 AstroDan2015

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Posted 12 April 2018 - 06:39 PM

Hi Tiziano,

 

I've been following your Jupiter images on Alpo-Japan for quite some time and they are always superb.

Please swing your new scope towards Mars and Saturn too.

 

I wish Celestron or Meade would offer f/20 "Planet Killer" scopes with smaller secondary mirrors.

Every time I look at my 14" Meade with its 5" obstruction I cringe, knowing that I'm losing 2 inches of contrast with its oversized secondary mirror. 

 

Best Wishes, Dan  waytogo.gif



#25 Tizianobkk

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Posted 12 April 2018 - 09:34 PM

Dear all,

thank you again for your generous comments.

@Tonystar: the gain in resolution is visible, although the 410 is also a great telescope, there is a diminished return with larger aperture

@Faber: I don't have a binoviewer, I sometimes observe with the eyepiece (Taka 30mm) but not much, I prefer to spend the time capturing images. The new camera with IMX252 is a decisive step forward compared to the previous one, higher sensitivity and lower noise. I was worried about the pixel size, at 3.45 micron there is a risk of oversampling, as mentioned by John, but I noticed that it's not the case. The limit is my current computer because I cannot use too high frame rates before it freezes and loose frames.

@Dan: I also have images of Saturn and Mars, check the following links: http://alpo-j.asahik...18/s180411z.htm

http://alpo-j.asahik...18/m180411z.htm

 

Best Regards

Tiziano


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