望远镜
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星系团。
请问8.98分米主口径的里奇-卡塞格林系统望远镜的制作难度有多大？
我想制作台主口径8.98分米的里奇-卡塞格林系统望远镜，但是不清楚这种望远镜具体的制作难度，并且在制作过程中会有哪些问题、适合哪些材料等，请问有人知道吗？
NightlyAndy
What does this collimation picture mean?
Tried to collimate my Maksutov, because something was off. I made it worse, so I gave it to a shop. After receiving it back everything was better than ever, but I noticed some echos (picture 1) and strangely repeating shapes (picture 2) when de-focussing on a far away street lamp. What is that? Just asking out of curiosity :-)
Lyra
How about a two-inch astronomical eyepiece?
Is a two-inch eyepiece better than a 1.25-inch eyepiece?Has anyone used it?Can you describe the effect:-)
Syzygi
Rent telescope time on southern hemisphere
Hi everyone! I was wondering if anyone has any good tips on where I could rent some telescope time on the southern hemisphere so I can get some images for the Messier challenge? I live way up north and it's difficult to get even equator located things because of my location, so all tips on where I could go online to rent time would be majorly appreciated!😊
Exosphere
Exos 2 PCM 8 dont move any help ?
Hey , I have Problems with my new pcm 8 goto . After installing all the driver and testing she works Fine but After a Rest and then try to adjust for the persiden she dont work or move anybody . Driver and cable are installed and correct and when I Go in explorerstars and lockte a planet and select for gaizing They do nothing . had anybody a Solution or tips ? Sorry for my Bad englisch . 😊
Exosphere
I Search Bag for my new setup ?
Hey guys, I'm looking for transport bags or crates for my setup that I recently purchased. My new setup: Bresser Messier 152l/1200 Bresser AR 90/500 Exos-2 PMC-Eight Go to
Jump
My first setup for Astrophotography
Hi, I'm new to astrophotography. Here's my setup. I have a lot to learn! :-)
icegirl
does the celestron nexstar 8se work well with ASIAIR?
I want to do more astrophotography with my celestron. i am looking into cameras and better mounts as well as various software. Should i use N.I.N.A. or ASIAIR? which works better with this celestron?
Tom在摸鱼
想凑个贫民破产版的通吃型玩意
人在国外，不想花太多钱，毕竟只是个小爱好。 C8买的是197x年的，支架还是叉臂的，时钟马达有点问题，所以只拆下个镜筒用。 其它的都在国内买，准备下个月回国顺便调试好带走的。 已有的: C8 镜筒 ￥1200 C8SE 支架 ￥800 鸠尾板 ￥50 巴德膜 ￥60 asi715mc ￥700 减焦镜 ￥360 c8se 手柄改无线 140 asiair mini ￥700 多买了几件 c8se的宽板 100 宽转窄 100 50mm ed导星镜 300 没别的目的，就是想省钱，反正这只是个爱好，没事的时候能看看星星。 大家帮忙看看，还差点啥不？ 回头还想那这套东西搞个大活给大家乐呵乐呵。 比如破产后又破产版的rasa 东西买齐了，下个月回国，拼好镜
