Heyy I want to know if anyone knows where can I buy a good telescope but not too expensive:)

Hey guys :) First of all i wanted to say that i've not been posting for a LOT of time because of the weather and because i've had a fever but also because the temperature was FREEZING however now the weather is getting better so i will be posting more however now let's talk about the askar. So tomorrow in going to buy the askar 60F telescope with an eq mount.. do you guys recommend anything else before i buy it? the photo is one that i processed a lot. Tell me what you think :)

有没有大佬帮我解答一下 1500mm 焦距的镜子 适合用多长焦距的导星镜

Hey! I'm using asi715mc with IR cut filter the scope is f5 x 750mm celestron, on the AVX mount, I'm starting to get some images of Jupiter and the moon, i have just learned i should be stacking with 8bit gain up around 300 and fast exposure between 5 - 10 MS .Could i get some advice on planetary video stacking and is there any accessories i should be using?

Seestar并没有成功锁死科技树。我的望远镜还在继续长大，预计下个周期会涨到14 公斤，远超我古老的赤道仪所能承受。但暂无更换赤道仪的打算，于是我开了个脑洞，OTA一定要随赤道仪指向天空吗？我不可以让天空静止吗？！这将是又一次脑洞大开的大胆尝试。不成功我不吱声哈哈😂

1000以下有吗 ？？？

信达技术说光轴是调好的，但收到后发现主镜固定螺丝是松松，我无法在-21度温度下从容校准他。

请问在有足够的材料、工具和成品镜片下，制造主口径22厘米的牛顿反射式望远镜难度有多大？1年时间是否足够？

自制牛反望远镜的弯路之一……说出来让大家有问题的可以参考下。买了某师傅的150F4镜片，怎么调整光轴都不对，最后发现原来是中心标记不对，现在重新贴了就对了，星点对比如图，借助了下工具确认中心点…… 自带的标记不在中心，买过这个师傅镜片的应该看得出来，师傅用的三角标记 调整后位置，看得到原来的印，用厂里的投影仪确认过，基本在中心了。就是用手揭贴纸把镜片弄花了点…… 为了测试下是不是自己做的碳纤维桶的问题，还去上了个小型三坐标……碳纤维桶是用的夹心结构，内部放了泡沫夹心，整体厚度很厚，所以刚度很好。 调整标记后位置比较准了 没调整标记的，星点像飞机长了翅膀或者是3角形 没调整前的，星点像飞机 调整标记后M42一分钟单张，调整标记后好很多了，虽然还有点椭圆，可能和调焦和慧差镜有点关联吧 成都天气就一个小时数据叠加，虽然天气灰蒙蒙的。 最后来个全家福！

我想知道信达/星达22英寸(55.88厘米)反射望远镜的具体价格。

Hey Guys so i have a telescope that is quite good however i found out that I need a camera to get better pictures, do you guys know a cheap camera (possibly 100€ or under) that is good?

我想要主口径≥30厘米并且价格在5万元以内的天文望远镜。

我不知道具体该怎么说，我想知道在使用的时候，这个大盖子能不能打开？我目前只敢打开上面的小盖子，请问有人知道这个大盖子能打开吗？

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？

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 :-)

Is a two-inch eyepiece better than a 1.25-inch eyepiece?Has anyone used it?Can you describe the effect:-)