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[天文观测] 天文观察摄影雜记---林月笙香港天文台

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 楼主| mandii 发表于 2011-7-30 14:15 | 显示全部楼层 来自: 中国–香港 电讯盈科有限公司
US ASTRONOMY



MANDII :
ha ha ! BOB you are right . I also thinking about my financial ability to own this mallincam , I will study more those cheaper videocam as you mentioned above , anyway really thanks you a lot for this importatnt information !

BobDob :
MANDII, I don't know if you are a spriritual person. I happen to be one. I follow the direction I feel from within. In your case, I have felt led and directed to support and encourage you. This is where I am coming from. This is a full disclosure.

I have watched you perservere with limited means to achieve great accomplishment. You have created an observatory of substance in a difficult enviornment. You have communicated with your peers in a very foreign culture and language, and they have shown you respect and offered you fellowship. You have accomplished a great feat, in my eyes. I could have not have do so. I admire you.

My brother, I only want to thank you for being you.

Your brother and friend,

Bob



MANDII :
wow BOB don't say this ... I just have little achievement as of now .
It's my pleasure indeed to come to this place in an occasional way back to two years ago . I am just a person who enjoy the night sky . And I want to do somthing on this area . In my eye , you are really a great person , who have did a BIG project and BIG observatory in a HIGH mountain !! The point is the harzard place in a high mountain ! The monata mountain in US !! WELL , that's really not easy for an ordinary person . And much more difficult even for an old man like you to do this kind of TOUGH JOB !! NOT EASY ! Though I am not sure finally how finally your observatory goes on , But that's not important . Final result is not a matter . The point is you have tried it ! So I really admire you on a such attempt to build an observatory in high mountain . BRAVE MAN !


BobDob:
My dear brother, let me clear up a misconception. Your admiration of me is misplaced. I began my observatory on a misconception. This is a long story, so please forgive and bear with me.

When I came to Montana, it was to build an observatory for a client. The hope for both of us was I would like this area, which I did very much, and I would like to stay here. I did love this region and wanted to retire here. He was to provide the materials and I would provide the labor and expertise, and we would build an observatory for us to share.

Well, my years (69 this August) betrayed me when I had to begin working nights in security at the local precious metals mine. So, I had to admit I could not honor my part of the agreement, and we parted ways.

In the process of this, I realized he had taken my wheelbarrow and used it for his own needs. Naturally I resented this, but said nothing. My great error was I held him in judgement for his behavior.

And, I relocated and began my own observatory. It was very hard for me. My age betrayed me and I found each day of labor nearly more than I could bear. How I regretted the passing of my youth. I pressed on.

One day, I had an insight. For the two years since I had left my friend's project, I had resented what he had done. But, I had not once needed a wheelbarrow. There were two at the ranch where I was living and building my observatory, but I had never used or needed either one.

Then, came the realization that I was holding my former friend guilty for an offense which made no sense. And, it had made the building of my observatory far harder than could be justified.

So, I emailed him and told him I had forgiven him and the wheelbarrow was his. I gave it freely to him.

He emailed me back and asked me, "What wheelbarrow?"

Then came the understanding that he had thought the wheelbarrow had been dropped off at his place by a friend who had told him he would do this. You see, he did not know the wheelbarrow was mine.

And, all this time I had thought he had done a very mean thing to me. He had no idea of this. So, we have cleared all of this up, and are the best of friends. And, we are sharing the observatory which we started to be for the both of us.

So, my observatory? It is nearly finished, but is no longer of interest to me. I have a friend who is sharing his observatory which we began to be for both of us. And, we are sharing it in fellowship and good will, and enjoying this very much.

The moral? As in many religions and philosophies: judge not, forgive all, and love everyone without condition. Lao Tsu, Jesus, Buddha and many others have made this plain. Unfortunately, even though I knew this, I managed to overlook it in this case. So, I am embarrassed but wiser for the lesson I thought I had already learned.

Life has a way of giving us tests to see if we have really learned its lessons.

Be well, and be wise...Bob



MANDII :
Understand BOB . Anyway , take it easy .
You are always Number ONE in my point of view !



BobDob :
Thanks, MANDII, I have the highest respect and regard for you, too!

Bob
林月笙
[
峰迥路转]
人皆寻萝 萝里迥转吉凶 片刻春风得意 未知景物朦胧 人生如萝 萝里不分西东 寻乐不甚苦困 未识苦与乐同 他朝醒觉梧桐  是否夸凤成龙
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 楼主| mandii 发表于 2011-8-1 23:35 | 显示全部楼层 来自: 中国–香港 电讯盈科有限公司
NO.26)

今晚拍到M2 . 天空没什么云,没有很清,肉眼能看到约5个星座的主星.

ORION 6"/F5 Newtonian
EQ3 unguide
DSI-I ( 30s X 17)
IRIS

Observe : 2011/08/01 10:45p.m
m2.jpg
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zhangke_ss 发表于 2011-8-1 23:57 | 显示全部楼层 来自: 中国–湖北–荆州 联通
LS的是不是没对好焦呀.........
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 楼主| mandii 发表于 2011-8-2 09:28 | 显示全部楼层 来自: 中国–香港 Hknet公司



这个我当时调到没法再调了,调焦座没有微调(1:12) 扭制就是有那样不便。
另外作晚处理图像时,家里那台电脑看和现在公司这台电脑看明显差别好大,这台看起来要暗好多,好像细节都没了那样。
今早一到公司打开一看,唉马上没劲了。。。
我不知道你那台电脑看得怎样,一般要有图象卡的电脑才好看。
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weiguoshi2002 发表于 2011-8-2 09:37 | 显示全部楼层 来自: 中国–四川–内江 移动
提示: 作者被禁止或删除 内容自动屏蔽
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 楼主| mandii 发表于 2011-8-2 12:35 | 显示全部楼层 来自: 中国–香港 Hknet公司
US ASTRONOMY


ghswen : Yesterday, 04:01 PM from Murrieta, CA

You're getting close to 30 MANDII!
Keep at it.



laney50w : Yesterday, 04:03 PM from New York
Hey Mandii,

Nice picture! Keep up the good work!
Chris




Uncle Peter : Yesterday, 10:08 PM from Toronto, Ontario, Canada
Nice photo Mandii. Was that taken using a CCD camera?


deaman49 : Yesterday, 11:19 PM from Allegany, New York
Nice Pic Mandii!


MANDII : Today, 01:20 AM
Dear Uncle Peter ,

Yes , It's the one Meade DSI with color version . It has version I , II and III , and my one is version one . I had used it for nearly one and half years , so far no complaint on it's price and it's performance .


And also , betting clear skies and thanks all of you above having kind touch here .



CLOUDY NIGHTS


UmaDog : 08/01/11 09:45 PM from Long Island, NY

Nice, thanks. I know the feeling about clouds. If conditions are bad for long periods of time then it's hard to be motivated. I didn't realise Hong Kong was so cloudy.


MANDII : 08/01/11 09:45 PM
Well I don't mind what you had said the M93 to me previosuly , besides you had encouraged me a lot indeed ,to keep in mind not being lazy and keep on doing it .

Thank you sir from Long Island .
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 楼主| mandii 发表于 2011-8-3 09:43 | 显示全部楼层 来自: 中国–香港 Hknet公司
US ASTRONOMY

MANDII : Yesterday, 11:04 AM

Gordon this is the summary list with report number for easier check on each objects . Actually originally it's placed in first post of this thread and should be updated everytime ,but I can't update it anymore after some time it's posted . So I would like to have this summary list here now .



Uncle Peter: Yesterday, 08:32 PM from Toronto, Ontario, Canada
Mandii, that is the CCD camera I am planning to buy! I wasn't sure about how the images would be with the DSI, but now I see that they'll be just fine, judging from your photos.



MANDII : Yesterday, 09:58 PM
Wow uncle Peter don't do that , or It may waste you some unneccessary money ... It may not be a good choice for you actually . I am just saying my own favour ONLY. Besides I am not an experienced person ,especially in the field of equipments . You see I didn't use too much different equipments before ,so I don't know much about the equipments actually . I am only a person who try to use the most on what I have on hand .

For which CCD device is better , it's better you ask for advice from those experience persons in the CCD equipment sub forunms . They are much experienced than me .



Uncle Peter : Today, 01:27 AM from Toronto, Ontario, Canada
Thanks for the heads-up Mandii. I know for sure I don't want to get an expensive CCD camera. Some of them are as much as $1000 and more. I will head over to the CCD imaging forum and ask them if the Meade DSI is a good model to buy.

The exact model is the Meade DSI II Pro.
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 楼主| mandii 发表于 2011-8-3 23:29 | 显示全部楼层 来自: 中国–香港 电讯盈科有限公司
NO.27 )

Tonight M15 , little cloud , but transparancy worser than previous observing night .
I can't see the comic near M15 in eyepiece (K25mm) , though I had searched it for long time around the region of M15 . The DSI even much more smaller picture-FOV ( at least 4 times smaller ) than the eyepiece , thus it surely cannot cover this comic in picture . Anyway , this is the result of observing , tonight .


ORION 6"/F5 Newtonian
EQ3 unguide
DSI-I ( 30s X 16)
IRIS

Observe : 2011/08/03 10:00p.m
m15.jpg
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 楼主| mandii 发表于 2011-8-4 11:59 | 显示全部楼层 来自: 中国–香港 Hknet公司
CLOUDY NIGHTS

UmaDog : 08/03/11 10:59 PM from Long Island, NY

Thanks for posting! I like M15. I spent some time trying to see the planetary in it on Saturday. I think I found the location but couldn't confirm it.

Do you ever get the chance to make trips to darker skies?




MANDII : 08/03/11 11:50 PM

well sir bascily I am a lazy man . I am lazy going out and no such time as well after work everyday .
I don't want to bring things . It's probably not the reason of distance , let say even I just need to setup the telescope every time observation on my home platform , just on my platform , and evreytime bring back these equipments after complete the observation . " That would also be a diffculty for me " . So you can understand now how it is impossible for me to go out . And that's the main reason I setup an observatory . Also , I want frequent observation , not talking about seldom use my teslecope , so frequent that I observe so many things like the Moon ,the planets and even the Plants on the nearby hill as well . Not only the DSO . So how can I setup the telescope every time if it's needed so frequently ?? That's impossible without an observatory that already setup and keep everything
well for you in a outside place .

2ndly , my location is quite dark already in Hong Kong , though it's not very dark but still OK . If the outside dark area is clear that night , then my place is just same . For me , The main problem is not the darkness in my site , it's the weather of cloudy nights and the quality of sky . I mean the Dust and thin misky layers that always covers the whole sky and make the tarnsparancy very low . And this is geographic weather matter , basicly everywhere in Hong Kong is just same . Not so many nights in a year without the clouds , not so many nights has very sharp stars . No matter where you go in a such small place in Hong Kong , the sky is just same . Cloudy and unclear nights . That's why I come this cloudy night forunm now .
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 楼主| mandii 发表于 2011-8-9 17:39 | 显示全部楼层 来自: 中国–香港 Hknet公司
US ASTRONOMY


WWPierre : 08-07-2011, 02:38 PM from Squamish B.C.

I set myself the task of finding the comet C/2009 P1 (Garradd) without the help of go-to.

I chose my new Vixen ED80, and set it on the motorized EQ3-2. with my Siebert 30mm ultra in the focuser. I started at ENIF (Epsilon Pegasus) and hopped to M15. Then I downloaded the PDF of the comet's path, and related it to Stellarium. I don't have the comet in the Stellarium data base, because I haven't been able to get any of the newer versions of Stellarium to run on this computer. There are a lot fewer stars in the PDF than Stellarium, so it took me a while to estimate the position of the comet. Once I determined it to be close to a certain keystone shaped asterism, I caught it with averted vision. When I was certain there was actually something there, I checked Stellarium, and determined that what I saw wasn't in the program.

The motor drive on the EQ3-2 is not equipped with a clutch, so it became a PITA to star hop, as the fastest slew it can muster is 8Xsiderial, which is pretty slow. I made sure I had a good balance, and loosened both clutches, that way I could move the scope on the EQ mount just as conveniently as if it were a dob, with the added advantage of tracking after target acquision and re-clamping.





MANDII : Today, 05:25 PM

Well Pierre your this article make me feel excited very much now . I also did try to find it out on last wednesday when it's very near M15 . People say it's near M15 . I use 6"/ F5 with 25mm eyepiece I can find out the M15 ! A white misky thing in an eyepiece indeed . Very nice ! Teh nI try to move around my telescope in search the comet , within 2 to 6 degree of FOV range . But I just can't see it ! Well I guess may be the sky transparency is not so good . So finally I just take a picture of the M15 . And ends up such a wonderful observing night , I still say it's wonderful though I have no chance to have a look on the real face of this comet , but you know the M15 had make me happy .

Clear skies for this simple report to evrybody , who are getting crazy with thuis comet recently .
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 楼主| mandii 发表于 2011-9-17 11:03 | 显示全部楼层 来自: 中国–香港 Hknet公司
中国牧夫

今日起撤退中国牧夫论坛 !

爱牧夫技术:2011-9-16 14:11:42
论坛升级的工作即将开始,会有一段时间,导致无法访问,敬请谅解!



MANDII:2011-9-17 09:05:44
靠!怎么以前每个版面里的热门主题小窗口都没了,至顶的贴又保留,那么不公平!
那以后进论坛还有啥意思,以后都不来!
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 楼主| mandii 发表于 2013-1-15 09:54 | 显示全部楼层 来自: 中国–香港 Hknet公司
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 楼主| mandii 发表于 2012-10-26 23:27 | 显示全部楼层 来自: 中国–香港 电讯盈科有限公司
一年没来牧夫,这张贴的记录未完过,只是记在国外的论坛里,今日想继续这张未完的贴。
这一年以来,器材一样,有空便拍拍玩玩,好天就那么几天一年里,拍一个深空便算一个,还得补上一些这一年里的照片。




NO.28)

木星: 2010/10/11_No.12 | 2010/10/12_No.13 |2010/10/13_NO.14|2011/09/27_NO.28


ORION 6"/F5 Newtonian
EQ3
2X Barlow
DSI-I ( 0.0387s X 735)
Meade Envisage Drizzle Box stacking , Registax .

Observe : 2011/09/27 11:15 p.m
jupiter.jpg
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 楼主| mandii 发表于 2012-10-26 23:30 | 显示全部楼层 来自: 中国–香港 电讯盈科有限公司
No.29)

补倆张M42和M45漏记照片。那时家里有部老爷机Olympus C-40 Digital camera  , 目镜(K25mm)后拍摄,暴光只能16秒,10张叠加。
这倆个M天体很亮,此DC机够感光,这倆张照片算是我比较满意的,当时给了我很大稀望,以为找到了现成的机子,可以不费一分钱又能达到个人拍M天体的目的。
想一直用它来拍,我是想拍比较亮的M天体,星团类为主,后来很失望在接下来倆三次中拍不到其它的星团,连M6,M7都不行。感光不够没它办法。
所以后来只能继续用DSI,DSI 是三年前决定用的,是我现有相机中感光最高的一部了,一直以来也没打算更新器材。

Orion 6"/F5 newtonian
K25mm eyepiece
EQ3
Olympus C-40Zoom (16s X10 )
IRIS , Photoshop

Observe :2011/12/27


M42.JPG
M45.JPG
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 楼主| mandii 发表于 2012-10-26 23:31 | 显示全部楼层 来自: 中国–香港 电讯盈科有限公司

NO.30)

Tonight very excited . The sky suddenly become a bit clear without not much clouds at around 10 o'clock . So I quickly take action . I spend around 30 minutes to find out this M41 by myself , I am very pleased when I see it . It's really beautiful in the eyepiece , so many bright stars ! And then after looking it for a while I turn to do imaging . At first I use my Omlympus Digital camera since last time it can have enough sensitivity on M45 and M42 , but this time M41 is much dimmer . It cannot be shown even a little bit of this M41 on the camera display at it's maximun 16 seconds exspoure . And then No way so I have to change to use DSI , so fianlly I can catch it at 15 seconds per frame in DSI , I take 22 frames . Finally do stacking in IRIS , and finalize in PS . Tonight the observing session is fine . The time now is 0:46am.



M41.jpg
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 楼主| mandii 发表于 2012-10-26 23:33 | 显示全部楼层 来自: 中国–香港 电讯盈科有限公司
NO.31)

Olympus DC : 16s X 21
IRIS , PS .



So tonight this M35 is not really a good take , but it's just better than nothing .
Because I can have one more object in my list .
The tracking is very bad . My main goal this time is to see if my DC can have enough sensitivity to this cluster with magitude 5.0 under this low transparancy sky . It still can show a bit of this M35 . I realise the reason why last time the M41 was not captured well by my DC , it's not because of the DC sensitivity. It was because I haven't switch on the noice reduction option of my DC , that's why it produced so much noise and cannot revealed the object well .
2ndly , tonight M35 is located nearly at the zenith region , It's my first time to shift backward the observatory dome to do shooting . I found it's not very difficlut for me to rasie it up and move it back . So I am pleased about it .
                                                                                                                                                                                                                                                                                                                                                                               


M35.jpg
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 楼主| mandii 发表于 2012-10-26 23:34 | 显示全部楼层 来自: 中国–香港 电讯盈科有限公司
No.32)

It's 1 months no clear nights , tonight I shoot M50 ( mag= 5.9 ,size =15').
it's taken with DSI , 30 seconds X 17 .
I use a dirfting softwere (WCS for DSI ) to do polar alignment .
Stacked in IRIS , post process in PS ( curve function , treshold ).



M51_b.jpg
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 楼主| mandii 发表于 2012-10-26 23:35 | 显示全部楼层 来自: 中国–香港 电讯盈科有限公司
No.33)

Tonight M3 .
15 seconds x 35 taken by DSI
stacked in IRIS , PS pro-processed



M3.jpg
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 楼主| mandii 发表于 2012-10-26 23:36 | 显示全部楼层 来自: 中国–香港 电讯盈科有限公司
NO.34)

作晚木星

ORION 6"/F5 newtonian
2X barlow  
EQ3
DSI ( 303 frames)
IRIS , PS

Observe : 2012/10/19  22:15



jupitor1.jpg
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 楼主| mandii 发表于 2012-10-26 23:37 | 显示全部楼层 来自: 中国–香港 电讯盈科有限公司
NO.35)

M34 今晚,人肉时角定位,星体与目镜中心偏差约1/3度,单张15秒55张,总跟踪时间850秒单跟,首次使用DSI双星自动叠加,PS后期。

ORION 6"/F5 Newtonian
EQ3
DSI( 15s X 55)
Photoshop

Observe : 2012/10/25 22:00




M341.jpg
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