First priority was to visit "Time Machine", an exhibition by renowned Japanese photographer Hiroshi Sugimoto. Peeking through an unrelated sculpture that dominates the forecourt of the MCA on the western side of Circular Quay seemed a nice way to start.
SMC PENTAX (K) 28mm f2 "Hollywood"
Tags: sculpture sig signage welcome MCA forecourt Museum of Contemporary Art Australia Pentax KP SMC PENTAX (K) 28mm f2 (Hollywood) Circular Quay Sydney
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3454mm/F6.8 astronomical telescope
Moravian C5A-100M cooled CMOS camera
total exposure time = 4.2 hr
see www.astrobin.com/ka2yyh/ for more technical details.
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Seestar S50, 84x10 secondi di posa.
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Seestar S50, 222x10 secondi di posa.
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28.08.2024 (00:22 UT - 00:52 UT)
Celestron C14 Edge HD @ f=6650 mm (F/20), res = 0.13"/px
+ Celestron CGE Pro mount
+ Celestron EF
+ ZWO ASI 290 MM
+ Baader 2x VIP Barlow
+ ZWO EFW
+ Baader IR (685 nm) filter
+ Tempest Cooler
+ Omegon Dew Heater
+ Astrozap Dew Shield for C 14
Very short imaging train: I simply screwed the Baader VIP Barlow into the nose piece of the ZWO EFW. However, the small pixel size of the ZWO ASI 290 MM leads to a pixel scale of 0.13"/px at a reasonable f-ratio of f/20.
IR: 12 x SER movies
~6200 frames/movie
19 ms exposure time, gain = 368
1x1 bin
recorded with Firecapture
Saturn 30° above the horizon
Seeing: Pickering 4-5 (poor)
Postprocessing
IR
Autostakkert!4beta:
- Stacking 50% of the frames/movie
- Image Stabilization Planet
- Quality Estimator: Laplace, Noise Robust 5, Local
- Reference Frame: Autosize
- Normalize Stack 90%
- Minimum AP size = 104-128, Min Bright = 45
Registax:
- wavelet sharpening using layer 2, step increment = 2
WinJUPOS:
- image measurement of IR images
- image de-rotation & stacking of all IR images into one luminance image
Lucien Astrosurface 3:
- apply LR deconvolution
Topaz Denoise 6:
- noise reduction
Schwentinental (Germany)
-CS Daniel