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外出5级区，S30

难得外出，抓紧来一波，S30购买后首次5级区尝试拍摄。因为想拍多几个目标，大部分叠加时间不久。一开始有几个目标总是叠加失败，降低单张曝光时间有所改善（EQ模式）果然还是环境决定质量，随便拍拍比8级区效果好几档

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Are we able to notice changes in far-away deep sky objects like a nebula or a galaxy?

There is one question I ponder about since I started with astrophotography: I know I am looking way back in time. I am sure the deep sky objects change all the time. A nebula expands at certain speeds, a star is moving along, material is moving or hit by something else, objects might interact, etc. . So when are we able to notice changes in light-years-away deep sky objects like a nebula or a galaxy? When I take a long-term exposure of an object and repeat the same shot a year or more later, shouldn't there be a small noticeable difference? Or not because the target is light-years away and appears so small when observed from the earth? If I combine long-term exposures taken every year to a single image I think I am falsifying the object somehow. Or is it simply not possible to detect seemingly small changes with the technical tools available for the moment? Or could it be the distant targets movements are way to small to be detectable by any observer on earth?

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Stargazers Social

How things have changed for our kind of people!

I'm getting up there in years (67 this Sunday😊 ). I've loved astronomy since I was a kid. First telescope was a 4 inch Newtonian at age 10. It was pretty fancy. It had an EQ mount and even slow motion knobs. My dream some day was to get what we called at the time a "clock drive" so I wouldn't need to always be turning knobs to keep the target in the eyepiece! Astrophotography was film only, so forget about it for someone like me! 😂 Fast forward to today where my 14 inch RC guides a digital camera perfectly and even focuses itself and automatically flips and reacquires the target after it passes the local meridian. I take astrophotos now like I only saw in books back in the day! What a marvelous time to be an amateur astronomer! Enjoy it!

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S.W.A.G. TEAM

Hey Guys, sorry for my inactivity

Coming back completely when sky is :D Also im still random so heres a meme

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S.W.A.G. TEAM

ATTENTION!!! ACHTUG!!!! ATENCIÓN!!!! A THEIF HAS BEEN SPOTTED!!!!!

@ZWO Official Account Image theft has been detected by @Amsterdam race

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Astronomy Chatroom

Has anybody else found out that the seestar target filter function, doesn't truly filter by direction (north, south, etc.) nor latitude?

I'd love to hear your experience in this, has anybody else found out that the seestar target filter function, doesn't truly filter by direction (north, south, etc.) nor latitude?

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German Astronomer

Hallo zusammen aus Deutschland

Würde mich freuen wenn hier viele interessante Themen besprochen werden sowie Erfahrungen ausgetauscht werden

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Astronomy Chatroom

传说中九个🌞

传说中的九个🌞，八个超新星爆发过后，剩下太阳系里一个。😆

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Astroimg Official Group

Why is all the followers indicator red?

Why is the followers indicator red? Before you mentioned that you need to click several times, I’ve already done that. I know all my followers, so I don’t understand why this keeps happening repeatedly. If anyone has any idea why, please let me know. Even people in my own group were in red, and I know for a fact that they follow me and I follow them. I hope for answers. Happy New Year to everyone: astrophotographers, amateur astrophotographers, seetars astrophotographers, and ZWO people. May this year bring you peace, prosperity, happiness, and clear skies.🤗

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