Jupiter Session

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terrynak
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Jupiter Session

#1

Post by terrynak »


On this night, I observed only Jupiter.

12-3-22:

7:30 – 7:45 PM; AVERAGE seeing; 120/1020mm (F/8) Newtonian; 170x.

IMG_6245.JPG

Jupiter – The usual North and South Equatorial Belts (with raggedy edges) were clearly visible, along with the North Polar Region. The South Temperate Belt was visible as well, but the North Temperate Belt was not. The South Polar Region was practically invisible.

9:30 – 9:40 PM; AVERAGE to POOR seeing; 102/1000mm (F/9.8) achromatic refractor; 170x.

Jupiter – 2 hrs. later, I brought out the 4” 'frac. It looked like the planet’s fast rotation (once every 10 hrs.) was bringing out new features. The South Equatorial Belt was showing two darker bands within it, with a lighter zone in-between. Only a portion of the South Temperate Belt was showing this time. The North Polar Region was now showing what appeared to be the NN Temperate Belt within the Region, but strangely, no North Temperate Belt visible. Unfortunately, the air got heavier and the planet began to boil, so I ended the session.

Didn’t detect the GRS on either observation.

Overall, it looked like the 'frac gave sharper views as well as bringing out more surface detail (despite the false color fringing), but the difference could be attributed to better seeing conditions later in the evening (for a brief time at least) and the more detailed features that came into view with the planet's rotation. Need to do a side-by-side observing comparison between the two.

Despite observing only one planet, it was a very satisfying session.
Scopes: Reflectors, refractors, and 1 catadioptric. Ranging in aperture from 50mm to 150mm.
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Re: Jupiter Session

#2

Post by Nakedgun »


~

The longer I participate in this activity, the more I think the idea of observing a multitude of objects per session as a non-starter. I want to slow down and drink deeply.



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Re: Jupiter Session

#3

Post by John Baars »


Very nice session.
I like your single object observation. In recent years, I have increasingly started to observe only a few objects per session. This proves at least as satisfying ( with the occasional lash out to a multiple session from a dark location, of course).
Thanks for your report!
Refractors in frequency of use : *SW Evostar 120ED F/7.5 (all round ), * Vixen 102ED F/9 (vintage), both on Vixen GPDX.
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Rijswijk Public Observatory: * Astro-Physics Starfire 130 f/8, * 6 inch Newton, * C9.25, * Meade 14 inch LX600 ACF, *Lunt.
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Re: Jupiter Session

#4

Post by helicon »


Nice short and sweet session Terry. I agree with you and John that focusing on just a few objects or even one is a good idea if you want to take a deep dive. Also, thanks for description of Jupiter and congrats on winning today's VROD!
-Michael
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Re: Jupiter Session

#5

Post by Unitron48 »


Nice session checking out Jupiter with multiple scopes. The beauty of this hobby lies in the variety of objects available for a wide range of instruments. The enjoyment comes from picking and choosing what suits you...either in type or number.

Dave
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Re: Jupiter Session

#6

Post by Unitron48 »


Unitron48 wrote: Mon Dec 05, 2022 3:27 pm Nice session checking out Jupiter with multiple scopes. The beauty of this hobby lies in the variety of objects available for a wide range of instruments. The enjoyment comes from picking and choosing what suits you...either in type or number.
Congrats on your VROD recognition!

Dave
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Re: Jupiter Session

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Post by Makuser »


Hi Terry. A very nice observing session report of Jupiter with your 5" Newtonian reflector and 4" achromatic refractor telescopes. Jupiter's belting and festoons are always a treat for us even in smaller scopes. Thanks for your well written and interesting report Terry and congratulations on receiving the TSS VROD Award today.
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Re: Jupiter Session

#8

Post by Ylem »


Nice report Terry, Jupiter and it's moons are fascinating.

Congratulations on the VROD!
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Re: Jupiter Session

#9

Post by Bigzmey »


Nice comparison Terry and congrats on the VROD! Jupiter is tricky like that. I believe had similar observation when NN Temperate Belt was visible, but N Temperate Belt was not.

Seeing can certainly change over the course of the evening, doing side by side scope comparison would be the most accurate.
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Re: Jupiter Session

#10

Post by John Baars »


Congratulations on the VROD!
Refractors in frequency of use : *SW Evostar 120ED F/7.5 (all round ), * Vixen 102ED F/9 (vintage), both on Vixen GPDX.
GrabnGo on Alt/AZ : *SW Startravel 102 F/5 refractor( widefield, Sun, push-to), *OMC140 Maksutov F/14.3 ( planets).
Most used Eyepieces: *Panoptic 24, *Morpheus 14, *Leica ASPH zoom, *Zeiss barlow, *Pentax XO5.
Commonly used bino's : *Jena 10X50 , * Canon 10X30 IS, *Swarovski Habicht 7X42, * Celestron 15X70, *Kasai 2.3X40
Rijswijk Public Observatory: * Astro-Physics Starfire 130 f/8, * 6 inch Newton, * C9.25, * Meade 14 inch LX600 ACF, *Lunt.
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Re: Jupiter Session

#11

Post by terrynak »


Nakedgun wrote: Mon Dec 05, 2022 3:52 am ~The longer I participate in this activity, the more I think the idea of observing a multitude of objects per session as a non-starter. I want to slow down and drink deeply.

Some nights are good for targeting a ton of objects, especially if you're going through a double star or deep sky object list. Other nights might be good for focusing on just one object, especially if it's a planet that shows a wealth of surface details like Jupiter or Mars at opposition.

John Baars wrote: Mon Dec 05, 2022 2:28 pm Very nice session.
I like your single object observation. In recent years, I have increasingly started to observe only a few objects per session. This proves at least as satisfying ( with the occasional lash out to a multiple session from a dark location, of course).
Thanks for your report!

Thanks John. Because of the multitude of features, Jupiter is a fascinating object to study on its own.

helicon wrote: Mon Dec 05, 2022 2:57 pm Nice short and sweet session Terry. I agree with you and John that focusing on just a few objects or even one is a good idea if you want to take a deep dive. Also, thanks for description of Jupiter and congrats on winning today's VROD!

Thanks for the VROD Michael! Jupiter is fascinating to study because of its wealth of features, which can change hourly because of its fast rotation. Same applies to Mars at opposition.

Unitron48 wrote: Mon Dec 05, 2022 3:27 pm Nice session checking out Jupiter with multiple scopes. The beauty of this hobby lies in the variety of objects available for a wide range of instruments. The enjoyment comes from picking and choosing what suits you...either in type or number.

Dave

Thanks Dave - I enjoy using different scopes, especially on the planets.

Unitron48 wrote: Mon Dec 05, 2022 3:30 pm
Unitron48 wrote: Mon Dec 05, 2022 3:27 pm Nice session checking out Jupiter with multiple scopes. The beauty of this hobby lies in the variety of objects available for a wide range of instruments. The enjoyment comes from picking and choosing what suits you...either in type or number.
Congrats on your VROD recognition!

Dave

Thanks Dave!

Makuser wrote: Mon Dec 05, 2022 4:10 pm Hi Terry. A very nice observing session report of Jupiter with your 5" Newtonian reflector and 4" achromatic refractor telescopes. Jupiter's belting and festoons are always a treat for us even in smaller scopes. Thanks for your well written and interesting report Terry and congratulations on receiving the TSS VROD Award today.

Thanks Marshall - Haven't seen the festoons (or even the GRS) yet this year.

Ylem wrote: Mon Dec 05, 2022 4:50 pm Nice report Terry, Jupiter and it's moons are fascinating.

Congratulations on the VROD!

Thanks Jeff - the shadows the moons cast on the planet are especially fascinating.

Bigzmey wrote: Mon Dec 05, 2022 5:08 pm Nice comparison Terry and congrats on the VROD! Jupiter is tricky like that. I believe had similar observation when NN Temperate Belt was visible, but N Temperate Belt was not.

Seeing can certainly change over the course of the evening, doing side by side scope comparison would be the most accurate.

Thanks Andrey! There are more surface features that I'm hoping to see in the coming nights, including festoons, GRS, additional belts (including the N Temperate). Need to do side-by-side scope comparison observing as well.

John Baars wrote: Mon Dec 05, 2022 10:26 pm Congratulations on the VROD!

Thanks John!
Scopes: Reflectors, refractors, and 1 catadioptric. Ranging in aperture from 50mm to 150mm.
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Re: Jupiter Session

#12

Post by Lady Fraktor »


Some nice views Terry, I will often set up a couple different telescopes for comparative views on planets.
It is surprising how details can appear or disappear depending on aperture or eyepiece.
Hope you can get out for more viewing soon.
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Re: Jupiter Session

#13

Post by terrynak »


Lady Fraktor wrote: Tue Dec 06, 2022 7:26 am Some nice views Terry, I will often set up a couple different telescopes for comparative views on planets.
It is surprising how details can appear or disappear depending on aperture or eyepiece.
Hope you can get out for more viewing soon.

Thanks Gabrielle - I'll see if I can do some comparative viewing on my next session, most likely Jupiter again (maybe Saturn as well).
Scopes: Reflectors, refractors, and 1 catadioptric. Ranging in aperture from 50mm to 150mm.
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