香港天文論壇

1,2星等都拍倒甘清呀,
看你幅头像是反射镜来的啊,支镜应该系好野来的
5知是甚摸牌子要几钱

请问个M27系边度影咖 ?
个度environment 点样的,目是extreme mag. 大约系几多呀

哇,呢幅月亮影得几好播
5 好衣丝,不会打繁体打拼音比较方便

呵呵,that's fine you are also doing CCD imaging . We can exchange experience in future . I am a beginner only . That's my estimation for installing my equipment in future . Meade LXD75( motorized mount 6000HKD ) + a telescope(5000HKD) +CCD ( around 7000 HKD ) to take Missier & NGC ordinary objects . S...

My bugget for atronomy is not very big so far .. .

No , walking 15 min to the main town .
Near a hill ,but the sky is still ok . Extreme mag. around 4.0
The milky way cannot be seen .
I think using equipment around 20000 HKD ( incode the CCD ) can be enough to take photos of normal deep sky objects .

How do you always perform auto guide ?
Use PC to get image from camnera and then control the mount , or use the autoguider scope to directly control the mount ?

Do you use the offset , dark and light flames to process the photo ?

Just no w, I found an article written 2 years ago in this forum , I agree to his comment . 沒有絕對的關係，只要望遠鏡放的進去、運轉不會撞到就可以了。 ＃以下僅就圓形的圓頂做討論，與平頂式、全開式天文台（遮罩）考慮不一樣。 圓頂的目的僅在於保護望遠鏡，但圓頂的存在會對於望遠鏡觀測的品質造成影響，把望遠鏡安全的包在圓頂裡面，同時也隔絕了圓頂內、為空氣的流通，圓頂裡面的一堆功能例如：通風、空調等等就是要降低這個影響。而這些影響是因為有了圓頂才造成的，所以沒有圓頂的天文台才是理想的天文台。 太大的圓頂受風面積大...

哦,I live in Yuen Long .
It will be made in Yuen Long .

1. 豆豸苗
2. Wah!
3. Eddy So
4. Mark TCH
5. 梅西爾
6. hk
7. 大黃傻貓GARFIELD
8. Skyobs
9. baster
10.saturntommy
11. cwlam
12. shakeshake
13. Rae
14. MANDII

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香港星河科研社說有代理此圓頂，價錢由HK$1,2800起。


The dome is 12800 , but the shipping is nearly 20000 , total is around 30000, I had asked 星河科 2 months ago . That's why I give up to purchase one .

And most importantly , this height and the Dome size is safety . for example , I had considered to make a 1.5M Dome with 2M base room , But finally I give up that size because It's too dangerous when it is self made( except it is bought ) . It's not talking about 1 or 2 years time , It's talking abo...

A 2M( 2M*2M*2M) cube is still not enough ? I think my equipment investment is tottaly cannot be compared with yours . I think your body height is tall and your equipment is very big one compared with my expectation one . For me , There is a calculation background indeed for me to determine this 1M d...

And also , originally the dome is designed to be opened upward and downward , but now change . It opened horizontally rotated .
That is the fixed point is at the top of the dome and not at the side of the dome . Such arrangement is more strong in protection of the strong wind .