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Neptune Image 2023/09/15(UT)

Anthony Wesley,Luigi Morrone,Raimondo Sedrani
Anthony.W,L.Morrone,R.Sedrani

Anthony Wesley
last night there was some reasonable seeing here so I spent some time on Neptune and captured a bright spot close to the south pole using a 600nm longpass filter. With my camera this would be effectively something like 600-850nm due to the natural dropoff in sensitivity of the cmos sensor.
The set of images are attached and also at this link:
http://www.acquerra.au/astro/gallery/neptune/20230915-120000/
The images are heavily contrast-enhanced and a bit noisy and adversely affected by seeing conditions but there are common elements to all of them that suggest real features:
- A bright spot close to the south pole
- Possibly (?) a second white spot just above the bright one,but not as clear.
- Vague suggestions of equatorial cloud belts can be seen in in a couple of the images,showing as light/dark stripes that align with the planets orientation as shown in the inset.
For reference I've included the 4 separate images showing Triton,with it's visibility enhanced to make it easier to see.
 
 

[Anthony Wesley,Murrumbateman Australia]
≪アンソニ  オーストラリア≫

Luigi Morrone

[Luigi Morrone : City Agerola Italy]

Raimondo Sedrani

[Raimondo Sedrani : Pordenone,Italy]

ALPO-Japan Latest Neptune Section
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