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MANDII
sage
Reged: 11/23/10
Loc: HONG KONG
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Re: OBSERVATORY made by own -- MANDII (HONG KONG)
[Re: MANDII]
#5041962 - 01/28/12 02:03 AM Attachment (14 downloads)
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d)...
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Starman27
Carpal Tunnel
   
Reged: 01/29/06
Loc: Illinois, Iowa
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Re: OBSERVATORY made by own -- MANDII (HONG KONG)
[Re: MANDII]
#5042216 - 01/28/12 10:14 AM
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Really clever. Enjoy the zenith observing.
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MANDII
sage
Reged: 11/23/10
Loc: HONG KONG
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Re: OBSERVATORY made by own -- MANDII (HONG KONG)
[Re: Starman27]
#5045349 - 01/30/12 02:20 AM
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DEAR ALL ,
What is amenture astronomy ?
NO.1)
astronomy = find a deep sky object by your own + take a photo of it
To me , astronmy means to find objects in the deep sky , I used to find it by myself ( not machine) in an eyepiece . It's just like your are checking out some interesting tiny things under the eyepiece of microscope . And I do get the most FUN of this when the exciting moment come where I intentionally plus occasionally catch this object in the BIG deep sky . After that , you know we always need to take a photo when we go travel to a place around the world , so samely I take a photo of it , this photo may not necessarily to be a very good photo , just can see the object is pretty enough for me . And then keep this photo as my good memory of what I did for this object in teh deep sky . Each photo of Deep sky objects remind me how the time I find them out . Such whole process is called amenture astronomy , for me , that is the main reason I setup and design my compact rooftop observatory . I believe most probably in the comming years of time I will keep to use the same equipments without too much changes . They are an Orion 6"/F5 newtonian , EQ3 mount with a RA motor , 10X50 binocula , and DSI-I camera , or Digital camera(omlypus C-40Z) or a we cam(philipes npc700nc) .
http://www.cloudynights.com/ubbthreads/showflat.php/Cat/0/Board/deep/Number/4268545/page/3/view/collapsed/sb/5/o/all/fpart/1
No.2)
astronomy = Observe the moon cracters together with the use of a Moon Map ,navigate the moon surface for each craters , and take a photo of this spot site .
http://www.cloudynights.com/ubbthreads/showflat.php/Cat/0/Board/lunar/Number/4268580/page/1/view/collapsed/sb/5/o/all/fpart/1
NO.3)
Astronomy = Daytime use a telescope to observe Birds or plants over the hill nearby , samely take a photo of it . It is very exciting when the time you find such small birds on a tree plank over the distant hill . Even newtonian scope can be modified to do so to observe the territoral objects . Even newtonian can be used to observe the birds and shoot the birds . I am doing in such way with a newtonian scope . And even do some imaging as well .
http://www.cloudynights.com/ubbthreads/showflat.php/Cat/0/Board/cameras/Number/4960998/page/1/view/collapsed/sb/5/o/all/fpart/1
What is the best format for your personal Observatory?
I like Dome because of it's shape , Art of architecture .
My pirority factors are mainly three points before decide to make a Dome observatory ,
i) What should I do to get the most of it ( fun ) with the least costs input on this astro-hobby in my comming years of time . This factor fix those equipment input , cost , size ,quality ...
ii) Which type of Observatory can have most big usage in variety purpose ,
Night time can be used for shooting stars , how about other things such as Day time it can be used to shoot the birds , or do some Plants imaging over the hill nearby( in my case). Or use as a leisure room , playing online games etc ...
In this factor , it deterimines how big the observing view an observatory should have .
And it determines what kind of material is used for better heat insulation on summer day time . ( beacused it is used not only on the nighttime but daytime also )
iii) make it by own , or make it by dealers .
This is talking about the Cost of the project .
Happy to ALL OF YOU !
Best Regards,
MANDII
2012/01/30
Edited by MANDII (01/30/12 02:40 AM)
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MANDII
sage
Reged: 11/23/10
Loc: HONG KONG
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Re: OBSERVATORY made by own -- MANDII (HONG KONG)
[Re: MANDII]
#5048852 - 01/31/12 09:41 PM
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So this is another artcile I reply someone on another forunm on the purpose to build an observatory , this artcle is meaningful to me and I copy here as well .
Light pollution is the 2nd dead problem , 1st dead problem is that the number of fine days(sunny day) in a year , is getting less and less . Someday it may reach to ZERO .
My way to overcome this problem is not focus on something hardwarely or physically . I seldomly talk about the equipments in the past . Instead , I tried to discover or expand the way to use my Observatory , and the telescope imager . I do like to use telescope to take images . Not only the objects in the sky , but also the plants , the leaves and the BIRDS , and even the small inserts on the hill nearby . For the sky objects , if we just treat the moon as ONE whole object . You can only take one photo of it . Howver , if you change mind a bit to treat it as moon cracters , there can be much of the crater photos . Each one is different . And sometimes I take planets photo as well .
For the deep sky , though not so many clear nights you can observe , but I do enjoy to find it out by myself , I don't need to find a very dim DSO , there is so many bright DSO in the sky indeed , mostly the clusters . These are the real targets . I just enjoy the moment I find them out in my eye . So I find them out one by one , night by night , one night one object , and collect all these DSO photos to record them down as my finding . So far I got around 20(s) DSO objects and photos . That's the way to go in my previous 3 years since I built my observatory .
I ONLY FOCUS ON THE USE OF OBSERVATORY , THE FREQUENTLY USE OF IT , TO GET THE MOST FUN IN THIS ASTRO HOBBY IN USING THE TELESCOPE , AND THE CAMERAS .
Thank you cbrucker to let me think and remind me one more time in what I did so far ,in this hobby .
Best Regards ,
MANDII
2012/02/01
Edited by MANDII (01/31/12 09:43 PM)
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MANDII
sage
Reged: 11/23/10
Loc: HONG KONG
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Re: OBSERVATORY made by own -- MANDII (HONG KONG)
[Re: MANDII]
#5052581 - 02/02/12 10:34 PM Attachment (8 downloads)
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Slidding Dome design :
The previous modification is just an temporary and handy solution for my dome to reach zenith views . Recently I was discussing with a forunm guy Mr. Mastelenaut in this slidding dome design in another forunm . Mr.Mastelenaut come from US Washington , he owns a Big Diamond Shape Dome that is made by his own . We had disussed very detailly the design and I had my happy times in sharing our ideas thorughout the design processes . The below 2nd and 3rd is his idea , and I base on his basic idea to elaborate a bit to get my draw in first picture in Last night . I really like this slidding dome design and my this beautiful draw should be dedicted by Mr.Mastelenaut I thanks him very much . That's why I want to note the design here as well .
In my this design( 1st pic.) , the front barrier of both inner and outer walve is removed . This doesn't affact to the surgey / strengthness of the two walves . In that case , the dome can be slided fully or partially backwards without the barriers . I changed to use better materials for the two board by aluminum plates . The key point is that I use a Square C-Ring plates and a rectangular plate . There is an aluminun Ring at the rectangular plate as well . This 2-3cm height ring aims to prevent the water flowing into the Observatory from the rectagular plate . Since the water drops from the top side , it will flows onto the rectagular plate .No more other area the water can floods into the Obs . The side of the dome where two walves is overlapped , this part I didn't change so it should be same as before .
The inner walve is mounted firmly on the C-ring plate . There use water resistant glue . And then when the dome is opened , the outter walve is overlapped the inner walve , and since those barriers are removed , we can shifted backward the dome FULLY or PARTIALLY , without the barriers at the front . The dome just moved a distance of half dome to perfrom Fully slide .
And when the dome is closed , since there is only one fix point at the top of the dome , the outter walve cannot stand well . So there is 3 stand points( blockes ) on the rectangular plate as well . These 3 stand points can be used to lock the dome strongly by screws in case Big storm is comming .
Through this design , I totally understand why the POD is designed as vertically opened and closed now , my one is horizontally opened and closed . Because they don't want to have a front barrier during the shifting . And my one at the beignning time I didn't notice about this shifting matter . I only focus on the strongness of the walve under the BIG wind . Because the point is set at the top , it's more stronger in avoiding the destroy from the strong wind . You know my Obs is contructed on the rootop and not on the ground , so wind factor is my first priority to consider . And this Top point design is more easier to make . More easier to maintianence by just push up the outter wlave .
I really like this slidding dome .
MANDII
2012/01/03
Edited by MANDII (02/02/12 10:44 PM)
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MANDII
sage
Reged: 11/23/10
Loc: HONG KONG
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Re: OBSERVATORY made by own -- MANDII (HONG KONG)
[Re: MANDII]
#5052602 - 02/02/12 10:46 PM Attachment (7 downloads)
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Sketches by Mr. Mastelenaut :
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MANDII
sage
Reged: 11/23/10
Loc: HONG KONG
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Re: OBSERVATORY made by own -- MANDII (HONG KONG)
[Re: MANDII]
#5052604 - 02/02/12 10:47 PM Attachment (6 downloads)
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sketche by Mr. Mastelenaut 2
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Starman27
Carpal Tunnel
   
Reged: 01/29/06
Loc: Illinois, Iowa
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Re: OBSERVATORY made by own -- MANDII (HONG KONG)
[Re: MANDII]
#5053019 - 02/03/12 08:39 AM
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Keep up the good thinking MandII. You have solved tougher problems before.
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MANDII
sage
Reged: 11/23/10
Loc: HONG KONG
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Re: OBSERVATORY made by own -- MANDII (HONG KONG)
[Re: Starman27]
#5053053 - 02/03/12 09:09 AM
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Dear Sir Herman , it's only you here to understand my thinking , not sure it's really good or bad . Hope you like it . Take care .
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MANDII
sage
Reged: 11/23/10
Loc: HONG KONG
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Re: OBSERVATORY made by own -- MANDII (HONG KONG)
[Re: MANDII]
#5054307 - 02/03/12 11:06 PM Attachment (7 downloads)
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Dome Replacement approach :
I got a new design this morning if I really going to replace my current dome in future . So after considering different kinds of dome shape , I found my situation has a very big advantage to achieve the rotation of any dome shape structure , once they are put on my existing concrete building that has a metal rotation track to run with . Just simply mount it on the track plate .
It's a Square Dome indeed . Slidding roof plus Slidding Shuttle . This design is mainly focused on several main points
1. I need both high and low elevation angle , for astro use and territorial use ( birds ,plants and inserts over hill nearby )
2. with a shutter , it can sheld lots of lights from my neighbour and provide more privacy .
3. The Square DOME size is a little bigger than current one, it' about 1.5M*1.5M*0.7M , that should be pretty enough for me . Because I estimate I will mostly use not too big telescope in future , and these telescopes will be Newtonian type mostly , I can observe at the front and not at the back by sitting on my rolling chair that can be adjusted the height levels . So this Dome size should be pretty enough for me .
4. Such 1.5M*1.5M*0.7M square in high place on my house roof , it should not be very danger to use when considering wind blowing , it should have enough strengthness against the wind .
5. It's not too difficult to DIY . The inside skelctons I use metal strips . And then outside skin I may choose to use wood or aluminum . Depands situation . Coated with sun insulation paint . The conjuctions on all surfaces should use water proof glue .
6.It should be not too ugly if it's painted well in white .
MANDII
Edited by MANDII (02/03/12 11:12 PM)
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MANDII
sage
Reged: 11/23/10
Loc: HONG KONG
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Re: OBSERVATORY made by own -- MANDII (HONG KONG)
[Re: MANDII]
#5054782 - 02/04/12 10:05 AM
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This is an article I reply to Mr. Mastelenaut tonight , regarding the RISK under Big Storm to build this New square shaped dome . It contribute a very important NEGATIVE factor in this modification plan to replace my eixsting dome .
One more Mastelenaut , just now as I think of and I forgot to say . You don't really need to spent too much of your time and brain cell in drawing those sketches in this Square dome actually ... I really don't want to waste some of your time at final . Because I estimate the possibility I really take action to make this new dome , is not really very high ... May be just 30% for the time being . It's just for Fun discuss mainly . If you do have any sketches that you are willing feel free to draw it up , pls attched to this thread and I will be very pleased to see that . I will give comments as well . But if you don't have , that's also fine , No big deal really .
There is not really a MUST in replacing my current dome indeed .
Because I am still don't have much confidence in making even this simple Square shaped Dome by my hands . Particulaly when I think about the storm . I remember Last year July the storm was really horrible to me , I was scared very much at that time honestly speaking . In my rooftop platform there was one box nearly fly away with very strong force . If something drop onto the street and hurt someone on the street or destroy something( cars) on the street , I will definitely get into big trouble . I really not sure this 1.5M sqaure dome is a big thing or a small thing under such strong storm . You know this was the main reason I was not brave enough to build a big dome when I start to build my this dome 3 years ago . Because I don't want to take this Risk . Samely now after 3 years , I also not really want to take this same Risk . If the dome is built on the ground of my own backyard , I defintely go a very big one no problem . But it's on the roof indeed ... Everything gonna unepxectable , in a long term speaking . .. So , I estimate this replacement possibility , is not really so high for me . ..
__________________
Edited by MANDII (02/04/12 10:09 AM)
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MANDII
sage
Reged: 11/23/10
Loc: HONG KONG
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Re: OBSERVATORY made by own -- MANDII (HONG KONG)
[Re: MANDII]
#5066237 - 02/10/12 09:07 PM
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This is the ALL activities( Building Observatory , DIY equipments or maintainence , taking photos from the telescope imaging system in the Observatory ) in photos on what I did in this Astronomy Hobby in the past nearly 3 years of time . Totally there is 475 photos so far . Starting 22 of July 2009 the day of Sun ellipse in Hong Kong . I remember that day I use simple Digital camera to take some photos of the ellipese near the street of my working office . And I start this Astro Hobby starting that day .
Do like to share with you guys in the WORLD .
Thank you !
ASTRONOMY PHOTOS
Best Regards ,
MANDII
2012/02/11 ( SAT )
Edited by MANDII (02/10/12 09:19 PM)
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LoveChina61
super member
Reged: 06/20/09
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Re: OBSERVATORY made by own -- MANDII (HONG KONG)
[Re: MANDII]
#5066457 - 02/10/12 11:42 PM
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Nice! I enjoyed the pictures including the pictures of birds.
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Starman27
Carpal Tunnel
   
Reged: 01/29/06
Loc: Illinois, Iowa
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Re: OBSERVATORY made by own -- MANDII (HONG KONG)
[Re: LoveChina61]
#5066794 - 02/11/12 08:50 AM
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Graet gallery MANFII. Thanks.
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