我們的星空

PRISM · 文章由 **PRISM** » 週日 19 12月, 2004 01:52

M93是那一個星座的呢, 而且在那兒呢?

Subaru · 文章由 **Subaru** » 週日 19 12月, 2004 14:46

PRISM 寫:M93是那一個星座的呢, 而且在那兒呢?

在船尾座. 見下圖.

Subaru · 文章由 **Subaru** » 週四 23 12月, 2004 12:25

大家又估嚇這個是甚麼星座? 相上又有什麼特別的天體?

20041212 03:08-03:18HKT, 50mm f/1.4標準鏡開f/2.8, 富士RHPIII正片, 兩張曝光5分鐘底片疊合, 攝於長洲.

chrislichi · 文章由 **chrislichi** » 週四 23 12月, 2004 12:30

好亂...但好像有個黑暗星雲...

Subaru · 文章由 **Subaru** » 週四 23 12月, 2004 22:23

無人認到?

dydx · 文章由 **dydx** » 週五 24 12月, 2004 08:08

中間黃色大大舊果舊係唔係球狀星團黎嫁??

Subaru · 文章由 **Subaru** » 週五 24 12月, 2004 14:59

重未有人認到, 都係時候揭曉.

這個是小犬座, 主星南河三是冬季大三角的其中一粒星.

chrislichi · 文章由 **chrislichi** » 週五 24 12月, 2004 16:22

原來那是玫瑰星雲.....

Subaru · 文章由 **Subaru** » 週五 24 12月, 2004 22:23

嚟多張, 呢個應該有人識啦呱.

20041212 02:57-03:07HKT, 50mm f/1.4標準鏡開f/2.8, 富士RHPIII正片, 兩張曝光5分鐘底片疊合, 攝於長洲.

layanata · 文章由 **layanata** » 週六 25 12月, 2004 00:51

o個粒仲唔係土星??
中間M44呢?

elton · 文章由 **elton** » 週六 25 12月, 2004 01:06

Comparing Subaru's widefield photos, they are even better than my "photographic atlas of the stars"!!! The color of the stars, details... all better. I really should learn more from Mr. Subaru and Mr. Kingarthur's photos as widefield is really my favourite!

By the way, 5 mins + 5 mins can already revealed the Rosette nebula which I couldn't imagine! I thought it needs around 15 ~ 20 mins to show something on the film.

I think one thing about widefield astrophotography is very distinctly different DSO astrophotography is ... 意景...!

Thanks a lot sharing the photos!

PS - were the photos flat field subtracted??? they vignetting at f/2.8 is really quite little ar.

Subaru · 文章由 **Subaru** » 週六 25 12月, 2004 01:33

layanata 寫:o個粒仲唔係土星??
中間M44呢?

Yes. 還有其他可以mention.

elton · 文章由 **elton** » 週六 25 12月, 2004 01:43

M67 "King Cobra" too!

Subaru 寫:
layanata 寫:o個粒仲唔係土星??
中間M44呢?

Yes. 還有其他可以mention.

Subaru · 文章由 **Subaru** » 週六 25 12月, 2004 01:43

elton 寫:1. Comparing Subaru's widefield photos, they are even better than my "photographic atlas of the stars"!!! The color of the stars, details... all better.

2. By the way, 5 mins + 5 mins can already revealed the Rosette nebula which I couldn't imagine! I thought it needs around 15 ~ 20 mins to show something on the film.

3. I think one thing about widefield astrophotography is very distinctly different DSO astrophotography is ... 意景...!

4. PS - were the photos flat field subtracted??? they vignetting at f/2.8 is really quite little ar.

1. I just want to capture the 'as is' night sky. I am afraid that we cannot do this in 3 years later. For the ultimate quality, a trip to Australia or somewhere alike is essential.

2. At f/2.8, it can. Using E200 is even more promising.

3. Yes, just like laying on the ground to enjoy the night sky, without any equipment, but having the space feel.

4. Yes, I use the method Paul Ng mentioned in the workshop. Using f/4 will be much better, but I want to cut down the exposure time as the photos were unguided.

Subaru · 文章由 **Subaru** » 週六 25 12月, 2004 15:53

elton 寫:M67 "King Cobra" too!

Yes.

是巨蟹座. M44在西方又名蜂巢星團, 肉眼可見. 在中國, 它叫做鬼星團. 古代時又叫做積屍氣. 用相筒鏡已可清楚分解到M44.

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我們的星空

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