with incredible details !!
Any information about your equipment ?
and imaging method ?
有 1254 筆資料符合您搜尋的條件
- 週一 17 5月, 2021 21:58
- 版面: 太陽觀測和攝影 Solar Observation & Photography
- 主題: Our Sun Today 15-5-2021
- 回覆: 5
- 觀看: 315
- 週一 17 5月, 2021 21:22
- 版面: 天文話題 Everything about Astronomy
- 主題: 快將復活 -- 30cm F4 Newtonian
- 回覆: 89
- 觀看: 37331
Re: 快將復活 -- DEC platform
Sorry, I don't have any detailed drafts on paper, just in my brain. Will post the pic of the mount here once i finish the whole project. :) Like my style, I am often lazy to do any drafts for a project. Looking forward to seeing the final pic of your BIG MOUNT.
- 週一 17 5月, 2021 21:14
- 版面: 天文話題 Everything about Astronomy
- 主題: 快將復活 -- 30cm F4 Newtonian
- 回覆: 89
- 觀看: 37331
Re: 快將復活 -- DEC axis
I am not sure if none at all really in our city now, but at least, all the foundaries of sand-casting aluminum alloy haved been moved into the mainland in my living area. Seemed I had contacted 振業鑄造廠 many years ago but they didn't have any interest to do it for me because of so small business to th...
- 週四 13 5月, 2021 23:12
- 版面: 天文話題 Everything about Astronomy
- 主題: 快將復活 -- 30cm F4 Newtonian
- 回覆: 89
- 觀看: 37331
Re: 快將復活 -- DEC platform
To let the topic more informative, would you mind disclosing your whole design, like the shape of the big mount ? Or show us any drafts ?
- 週四 13 5月, 2021 20:30
- 版面: 天文話題 Everything about Astronomy
- 主題: 快將復活 -- 30cm F4 Newtonian
- 回覆: 89
- 觀看: 37331
Re: 快將復活 -- DEC axis
[微笑] Thanks for your sharing Mr. Kwan. DIY is fun no matter what age you are, and just do it if you want to start it again. That's right. Hobbies is a lifetime commitment, they wouldn't disappear from your mind when you getting old. However, I have yielded to the fact, handling heavy gears or making...
- 週二 11 5月, 2021 22:23
- 版面: 天文攝影 Astrophotography
- 主題: Venus 3/5/2022
- 回覆: 88
- 觀看: 22673
Re: Jupiter and Saturn 5/7/2021
Jupiter and Saturn 5/7/2021 8" Lxd55 Sct, 2x Barlow, ADC, Asi290mc AsiCap, Autostakkert, Registax, Winjupos, GIMP derotation really does help the quality of the image by reducing noise and enhancing fine detail http://www.hkastroforum.net/download/file.php?id=123489 http://www.hkastroforum.net/down...
- 週五 07 5月, 2021 23:55
- 版面: 天文話題 Everything about Astronomy
- 主題: 快將復活 -- 30cm F4 Newtonian
- 回覆: 89
- 觀看: 37331
Re: 快將復活 -- DEC axis
DEC axis, almost done http://www.hkastroforum.net/download/file.php?id=123155 A good finished ! [Good Job] Your Declination housing looks machined from a piece of solid aluminium cylinder. Veiwing throught its polarscope hole, I can see, the wall of the housing seems remain certain thickness, I pre...
- 週一 03 5月, 2021 16:18
- 版面: 天文話題 Everything about Astronomy
- 主題: 快將復活 -- 30cm F4 Newtonian
- 回覆: 89
- 觀看: 37331
Re: 快將復活 -- Separation pins
As no spec sheets coming with all the gears bought many years ago, I have used a vernier caliper to measure all the dimensions I need to know. If these measurement are correct, these pins can help me install the DEC gear wheel at the right position. Supporting pin.jpg Like a Radio Knob, can't get a...
- 週五 30 4月, 2021 20:52
- 版面: 天文話題 Everything about Astronomy
- 主題: 快將復活 -- 30cm F4 Newtonian
- 回覆: 89
- 觀看: 37331
Re: 快將復活 -- DEC goto motor
Yes, it is a DC servo goto motor, controlled by Vixen Skysensor 2000PC controller. This controller is very powerful. The motor can run at sidereal speed after inputting the correct gear ratio of the mount into the controller. No need to write any program. If the load doesn't exceed its limit, the m...
- 週三 28 4月, 2021 22:29
- 版面: 天文話題 Everything about Astronomy
- 主題: 快將復活 -- 30cm F4 Newtonian
- 回覆: 89
- 觀看: 37331
Re: 快將復活 -- DEC goto motor
To me, that is one of the most difficult part of re-building my DIY giant equatorial mount. http://www.hkastroforum.net/download/file.php?id=123052 From the shape of your motor, it should be a DC servo motor with encoder(the black part). Are you going to equip your new big mount with a Go-To system...
- 週三 28 4月, 2021 18:05
- 版面: 天文話題 Everything about Astronomy
- 主題: How to Start with CCD Photometry
- 回覆: 1
- 觀看: 1149
Re: How to Start with CCD Photometry
After clicking on the link, I found a more interesting topic "the end of the worlds" .
Who feels interesting, go and see the introduction directly on below link.
https://www.aavso.org/2021-webinars-abstracts#worlds
Who feels interesting, go and see the introduction directly on below link.
https://www.aavso.org/2021-webinars-abstracts#worlds
- 週一 26 4月, 2021 18:22
- 版面: 天文攝影 Astrophotography
- 主題: DSO 遺照集 -- NGC7000
- 回覆: 477
- 觀看: 97399
- 週一 26 4月, 2021 18:18
- 版面: 天文攝影 Astrophotography
- 主題: 20210423 My best ISS, just 2 days before Crew-2
- 回覆: 6
- 觀看: 1112
- 週二 06 4月, 2021 16:40
- 版面: 天文攝影 Astrophotography
- 主題: Venus 3/5/2022
- 回覆: 88
- 觀看: 22673
Re: Copernicus and Ina Irregular Mare Patch
Copernicus Crater Region and Ina Irregular Mare Patch 21/2/2021 8" sct, 2x barlow, asi290mc-s Firecapture, Autostakkert, Registax, GIMP copernicus close up,jpeg.jpg copernicus widefield.jpg http://www.hkastroforum.net/download/file.php?id=120350 http://www.hkastroforum.net/download/file.php?id=1203...