Astronomy Chatroom
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EndrDrag0n
(Reposted) UFO flies in front of the sun. What is it?
This was taken at 10:39 AM in Stanwood Michigan on September 13 2025. A black dot flies in front of the sun in a perfect horizontal line leaving me to believe this object is from space. The sun was 40 degrees above the horizon at the time. Can you guys help me figure out what this was? These pictures are the three frames it was in. The object is a faint black dot that I circled.
Sky Protector
如何拍摄天狼星B？
怎样才能拍到天狼星B🤔目前我使用主镜为星特朗8SE相机为QHY5III462C之前的尝试里没有成功，或许我差一个巴洛镜？怎样选择巴洛镜？多少倍的巴洛镜可行？或许，我还可以把462换为715，只要价格总和小于两千人民币。 哦对了，我这里经常视宁度不好，有没有一些简单的办法克服呢？
Sun-grabbing
请问关于RASA系统？
这几天在网上看的时候，看见RASA系统的摄星镜，不知道怎么样，但是看相机是插在他前头的。看别人拍的图片，行形相机的线还挡住了主镜。有没有了解RASA系统的大佬来解释一下？和APO的话推荐哪个呢？
ReligionFlag
An Infinite question that has no limit
An Infinite Question I'm writing this to remind you that just the sky in not just the limit, Ai has already started the biggest equation. Can we know how many stars on each galaxy of all galaxies from our observable universe? Can we count how many planets of each star such as our star system of each star in each galaxy from all galaxies from our observable universe? Can we count how many moons of each planet in each star system as ours of each star from each galaxy from all galaxies from our observable universe? Can we count each stellar object such as asteroids or comets or stellar rocks of each star system such as our star system in each star, of each galaxy of all galaxies from our observable universe? Can we count each stellar dust swirling around gravity of other stellar objects such as asteroids, comets, rocks, moons, planets, stars such found in our star system that are gravity pulled by their star, in each star system in each galaxy of all galaxies from our observable universe? Can we count each non intelligent inorganic substance consuming other inorganic substance such as seller dust in each dust, rocks, comets, asteroids, moons, planets, stars in each star system in each galaxy of all galaxies from our observable universe? Can we count each intelligent organic subject such as humans, animals or plants or microbes, consuming other inorganic and organic substances such as non intelligent or intelligent microbes, plants, animals or HUMANS that has consumed other inorganic or organic substance to exist in each object such as incorganic, organic, stellar dust, rocks, comets, asteroids, moons, planets, stars, in each star system SUCH AS OUR STAR SYSYTEM, in each galaxy of all galaxies from our observable universe? Notice the questions are getting lengthier and it can go infinite, light speed is 297,000km/s, our observable universe is 14.8 billion light years, that our observable universe limit, beyond that light will never reach us due to the speed of expansion, at that rate it will never allow us to observe what’s beyond, and we still didn’t open the subject of electrons rate, or black holes that consumes everything it finds, now the final question is… Can we count each intellengent, non intelligent, organic matter, inorganic matter, stellar dust, rocks, comets, asteroids, moons, planets, stars or galaxies beyond our non observable universe consuming other non observable intelligent or non intelligent, stellar dust, rocks, comets, asteroids, moons, planets, stars or galaxies, including light rays, infrared rays, microwave rays, radio wave rays, sound wave rays? If you didn’t have this thought yet, as the consumer, promoter or creator of Ai then the race to keep your job and steady future from one day Ai taking over it is over, Ai has already began calculating other dimensions! I’ve reach the limit of letters, I can’t go infinite limit, peace 🫠 God knows 🤷🏻‍♂️
DustWonder
我想造一个JWST的模型，但是不知道怎么做，有动手能力强的大佬能给点思路吗？
希望低成本哦，不要太难了，谢谢大家！ 我目前的材料： （1）白纸 （2）棉签上的木棍 （3）各种马克笔、勾线笔 （4）铝箔 （5）透明胶 （6）胶水 （7）双面胶 我目前的几个问题： （1）纸质的“主镜”怎么才能立起来？ （2）前面的“杆子”怎么才能不掉下来？ （3）该怎么使普通的白纸更硬？如果没办法，有没有什么替代品？ 欢迎评论区讨论！