八月初要去大理，能带设备去观星吗？会不会一直下雨（去两周）谢谢各位！

关于 Seestar S50 到底能放大多少倍我纯新手，闲着想琢磨下倍率争议，网上说法乱七八糟，有人说12倍，我实地用iPhone拍楼对比，数值完全对不上，分两种算法聊聊我的实测和计算思路。先铺垫硬件固定参数：S50物理焦距250mm，搭载IMX462传感器；S30焦距150mm，底更小，所有解析力差距都来自这两组硬件数值，底层通用公式：单像素角秒=像素尺寸÷焦距×206265。第一种：肉眼实拍目视倍率（普通人最好理解，社区超多实拍对照图可搜。拿月亮当参照物，因为是传到传感器后用屏幕显示，所以应拍一个手机月球照片，看手机时距屏幕30厘米时的月球角直径与人眼看到的0.5度角直径相同，再将其与S五零拍照的照片比对，如图 得出日常观感倍率，大概为20倍同套标准套S30，焦距更短，目视倍率仅12倍。第二种：标准画幅等效公式计算（纯光学，无观看距离干扰）行业统一基准：全画幅50mm镜头=人眼1倍视角换算公式：等效全幅焦距=设备物理焦距×传感器裁切系数S50传感器对角线6.46mm，全画幅对角线43.27mm，裁切系数≈6.7代入计算：250×6.7=1675mm，等效倍率=1675÷50≈33.5倍。这套数值只代表镜头成像拉伸能力，和肉眼看屏幕的直观感受不是一回事。顺带算S30：150×裁切系数≈6.7，等效全幅1005mm，倍率约20倍。最后总结：不管20倍目视观感，还是33.5倍光学等效，都是随参照标准浮动的数字，没法客观对比机器画质强弱。 第三种：单像素角密度比值算法（评判硬件解析力最客观）拿咱们日常手机28mm主摄当作基准1，这套计算完全不受屏幕大小、观看距离干扰，只对比镜头+传感器原生捕捉星空的真实能力。通用计算公式：单像素角秒=206265×像素尺寸(μm)÷焦距(mm)，S30、S50像素尺寸统一2.9μm。1. 分项计算数值• 普通28mm手机主摄：单像素对应21.37角秒天空• Seestar S50（250mm）：单像素仅覆盖2.39角秒天空• Seestar S30（150mm）：单像素覆盖3.98角秒天空2. 换算相对放大倍数以手机主摄为参照，公式：相对倍率=手机单像素角秒÷设备单像素角秒• S30相对主摄倍率≈5.4倍• S50相对主摄倍率≈8.9倍补充说明数值反差问题：不少人会疑惑，这里算出来只有8.9倍，可肉眼看屏幕实测有20倍。核心原因是手机主摄原生视场特别宽阔，这套算法仅计算镜头本身的光学拉伸；而我们肉眼感受到的大幅放大，是镜头原生放大叠加手机屏幕二次拉伸后的综合观感，两套评判标准不一样，数值自然没法对等。真正靠谱的评判标准是单位角直径内的像素密度：S50单像素覆盖天区更小，同一天体能容纳更多像素，行星、月面细节解析力天然优于S30。单纯纠结放大倍数，其实没有太大参考价值。 当然，本人也只是粗略表达下个人的看法，大概分享一下个人的思考，如果有异议也可以提出

Can i have some beginner ideas please

每次我拍各种深空天体，都会看到一条直直的线从目标前方略过。我也不清楚那是什么卫星。总之，这会影响拍摄效果。

Are there any friends who want to quit the game? I am offering a high price to buy back several S50 models. Contact me at 180-9516-2580. The requirement is that all accessories must be complete and the condition should be over 95% new. If you have any available, please get in touch with me?有退坑的小伙伴吗？本人高价回收几台S50，180-9516-2580.要求配件齐全，95新以上。有货的小伙伴可以联系我？

Testing an attempt to stack the Milky Way from the city using a GoPro

I got a Seestar S50 for Christmas and want to take on an international flight to Spain for the solar eclipse. Will there be an issue with the rechargeable battery?

I was wondering if there is in the Market a auto polar align harware ? Will be Amazing to have a setup that auto correct itself!! regards

I'm looking to get into mono imaging and using a slightly larger and longer scope (something like a C6 or even a C8). I know that with a longer scope I can't do tracking the same way as I do with my 72mm refractor. Which would would be better?1) Get a camera with a guide scope built in - like ZWO ASI585MM-Air or ASI2600MM-duo (or air)2) Get an off axis guider and use my current ASI290MM guide camera3) Getan OAG and a new guide camera4) Something else let me know your thoughts - I plan on starting to make this just towards the end of July 2026. My current setup is:Scope: AT72ED-II w/ .8 FR/FF with EAF; SV165 30mm guide scope f/4.0Camera: ASI533MC-Pro; ASI290MM guideMount: AM3 with ASIAir PlusFilters: ZWO 5 position filter wheel; ZWo UV/IR-cut, Optolong L-Extreme, Optolong L-Synergy

由于图片都被修图软件处理过，所以比例有点不一样，色调没有统一。

最近，北京的云真的是太多了

This article from the University of Science and Technology of China is brilliantly written… I want to share it with everyone. Whether viewed as popular science commentary or a piece of humanistic reflection, it is outstanding. What will ultimately doom this planet has never been extraterrestrials. It stems from our own arrogance and ignorance. Some wage wars, some harm nature, some oppress their own people through class hierarchy, some discriminate against others based on innate traits such as race and gender, and some hurt those they love with harsh words… Yet amid all this, there are still people fixated on a may non‑existent enemy, even using it as a distraction to indulge their greed and keep harming this tiny, fragile pale blue dot.

In the Canary Islands we have always had a more or less stable climate, but since last October we have not stopped chaining calima episodes with storms or storms I haven't remembered a season like this for a long time.

What is the purpose of the recent release of UFO-related documents by the United States? That's intimidate