台灣2008觀星之旅

Subaru · 文章由 **Subaru** » 週二 09 12月, 2008 21:15

北美洲星雲NGC7000:

20081201 10:53-11:27UT, Nikkor AIs 180mm f/2.8ED開f/4, EOS40D改, 300s x 6 @ISO800, EM10 Temma2 Jr, Mini-Borg 50 + DSI-Pro + PHD 自動追蹤.

當時個新月還未落山, 個北美洲星雲已經可以用肉眼直接望到, 重見到個型狀.

Nosneb · 文章由 **Nosneb** » 週二 09 12月, 2008 22:26

Subaru 寫:另一方面, 我估佢講緊導演:
XR250 寫:你攪到我要找返07未process的mosaic星座出來應戰。

yeah~~ 就係因為呢句! 不過最緊要係有靚相睇!

XR250 · 文章由 **XR250** » 週二 09 12月, 2008 22:42

要睇靚相，等Subaru去埋下個trip就會有更多野睇，相信唔洗等多好耐。

universe24 · 文章由 **universe24** » 週二 09 12月, 2008 23:22

A/45，照片的颜色和反差都能再提高点，不要太轻手。

越看就越精彩啊!!! 那张M42另我想到，如果不是数码的话，也应该很难拍摄得那么深空。

A/45 · 文章由 **A/45** » 週三 10 12月, 2008 00:16

Thanks for your comments Universe24.

Here's the enhanced M31. (After learning from Universe24's post below)

universe24 · 文章由 **universe24** » 週三 10 12月, 2008 08:47

好很多...请原谅我未经同意就拿你的照片来玩...请看看这样的处理如何？谢谢。

Subaru · 文章由 **Subaru** » 週三 10 12月, 2008 21:19

天鵝座網狀星雲NGC6992, NGC6995 & NGC6960:

20081201 11:51-12:25UT, Nikkor AIs 180ED f/2.8開f/2.8, EOS40D改 @ISO800, 240s + 180s x10, EM10 Temma2 Jr, Mini-Borg 50 + DSI-Pro + PHD 自動追蹤.

A/45 · 文章由 **A/45** » 週三 10 12月, 2008 21:59

Very good Universe24!
Now M81 & M82 Close up.

Maxvision 80ED "Red Type"
Canon 350D Baader Mod
7x5min @ ISO1600
DSS, PSCS2
Image resized and cropped

Tarepanda · 文章由 **Tarepanda** » 週三 10 12月, 2008 23:09

哇~~量和質都係NO.1
看來你那支80ED表現不錯哦
有個問題?你們只有一部EM10 ,但确能拍那麼多片子?
一共拍了多少晚?如何分配時間呢?

A/45 · 文章由 **A/45** » 週三 10 12月, 2008 23:37

Thanks Tarepanda. It has good cost-performance ratio except the very 5% margin has significant coma - still OK if you're using smaller chips.
We were working like hell. All four nights we set up right after sunset (except the 1st night when we arrived a bit late, but still ASAP).
Obviously we're shooting at the same object - two scopes aligned on one EM-10, see Subaru's set up photo. Each object would need about an hour of exposure; for some we spent just a little more than half an hour for which we later found out had inadequate signal. Of course there are hiccups when we switch batteries and other procedures like re-focusing after the scopes being chilled.
Then we drove back at dawn to sleep just before the sun came out-so we're pretty worn out at the end.

WFPC2 · 文章由 **WFPC2** » 週四 11 12月, 2008 00:03

So amazing sharp image of galaxy pair M 81 and M 82 taken with only small scope 80ED.

Subaru · 文章由 **Subaru** » 週四 11 12月, 2008 20:21

A/45 寫:We were working like hell.

You are finally telling the truth.

Subaru · 文章由 **Subaru** » 週四 11 12月, 2008 21:44

仙女座大星系M31:

20081129 15:05-16:40UT, Sky90 @f/4.5, EOS40D改, 600s x7 + 150s x4 @ISO800, EM10 Temma2 Jr, Mini-Borg 50 + DSI-Pro + PHD 自動追蹤.

A/45 · 文章由 **A/45** » 週四 11 12月, 2008 22:29

Wo Wo Wow, THE Ultimate!!!

Subaru · 文章由 **Subaru** » 週五 12 12月, 2008 07:57

當時用個8x42雙筒鏡睇, 個M31大約有3度闊, 而且睇到一兩條dark lane.

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台灣2008觀星之旅

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