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可觀 500mm 望遠鏡Ho Koon 500mm telescope

CCT-20 made by DFM Engineering:


Ritchey Chretien Telescope

primary mirror:

500mm F/3 ( made by Zeiss)

effective focal length:

4000mm F/8

spec:





Field: 125mm 
with corrector optics
ST8 SBIG CCD 冷凍照相機

piggyback:

 7" (178mm) ED APO BMC Meade 折射望遠鏡, 

ZWO ASI071 CCD Camera 

4" 尋星鏡

Mount: 
Equatorial fork type

760mm (30 in) friction drive in RA and 710mm(28 in) friction drive in DEC

ASH-Dome

Telescope Control System:

Skyx 6

2023年 11月4日 木星opposition 


天文觀測站是建築在一條15m高的三合土鋼筋圓柱墩上,深入地下7.5m,結構上跟大樓獨立,以提供一個非常穩固, 吸震(seismic isolation)地基。

13 Feb 2026:




退役

Reference

ho koon

DFM Engineering

hkastroforum

ASH-Dome

YouTube 

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