土星 ALPO-Japan Latest
Saturn Image 2023/10/05(UT)
Clyde Foster,Manos Kardasis,Randy Tatum
C.Foster,Kardasis,R.Tatum
I had some nice conditions yesterday evening for this Saturn set.
A few things to note:
a)In the R,some disturbance of the SEB is visible,as well as the light bands in the far southern regions.
b)A possible spoke may be visible to the left of the planet in the R and RGB.
c)In the sharpened IR,a dark spot is noted just below the NPR,almost on the CM. There is possibly a light spot just above it,but I am wary of artefacts,due to the strong sharpening. I initially thought it may be a camera hot pixel,but I think this is unlikely with 6 images derotated,and my tracking is far from perfect. I did check to ensure it was not a moon! There does not appear any corresponding feature in the R that I can see. I measure the light spot at +60 lat,L2 161,L3 69
d)No spoke was obvious in the IR.
[Clyde Foster : Khomas,Namibia]
Here is a red&ir filter obs of Saturn in good conditions
[Manos Kardasis,Glyfada-Athens;Greece]
《カーダシス マノス:ギリシャ アテネ》
One image is made with my old homemade 10" f/12 reflector. It has a 1" minor axis secondary mirror and uses a fan to reduce bad seeing from heat turbulence in the long tube. I am tuning it up and plan to use it more often in the future.
[ Randy Tatum,Richmond,VA U.S.A]