有 185 筆資料符合您搜尋的條件
Dear all: The weather on yesterday was fine and I took some image of sun. The following are the details of photo: Telescope: Borg 100ED (F6.4) at 640mm prime focus. Filter: Badder photographic solar filter Date: 12 Feb 2005 Object: sun Location: Roof of Hung Shui Kiu Mount: Tak P-2 camera: Philips T...
It is located at Tsing Tam of Kam Sheung Road.HK.Raymond.Tse 寫:Dear Mbike,
Would you consider co-operation, so that all advanatages can be pullled up together through joint efforts ?
Where is your permanent pier ?
This is the power of digitial camera, we can get good result with very short exposure. Did you take the photos at the car park beside visitor center? I have been there on last Sunday. Did the sky much clear at Tai Mo Shan than city yesterday?
- 週日 02 1月, 2005 11:32
- 版面: 廠製儀器 Factory Equipment
- 主題: Vixen Illuminated Guiding Adapter GA-4 (1-1/4 Inch)
- 回覆: 1
- 觀看: 2188
I want to buy a Vixen Illuminated Guiding Adapter GA-4 (1-1/4 Inch), where can I buy it and how much is it?
- 週五 31 12月, 2004 18:49
- 版面: 自製天文儀器 diy Astro Equipment
- 主題: How to building an aluminium skeleton for Dobsonian
- 回覆: 11
- 觀看: 10016
David: What is the size that you plan to build? I am also planning to build a 8" dobsonian, I have bought 2 square aluminum tubesfrom . The price of a 0.5" size (per foot) is HK$2. You can go to some local 五金鋪 and ask the price of a 1" size aluminum tube, I guess it may be $4 per foot. But how can ...
Dear all: I just come back from Malaysia. My friends and I saw both Q4 and T7. The tail of Q4 was at least 4 degree in length. We saw T7 plus its tail too in Sandankan town too, but the light pollution in town made me difficult to estimate the length of tail. The T7 looked like a ball and with the s...
I have taken some photos of comet C2001/Q4. The photos were taken with CCD starlight xpress MX7C at my roof located at Hung Shui Kei in Yuen Long. The eq mount is Tak P2. The first photo was composed of 2 X 30 seconds frames. The second photo was composed of 4 X 15 seconds frames. Please feel free t...