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AskAstrophotography

r/AskAstrophotography

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Posted by3 hours ago

Hello, When stacking multiple exposures, is there an upper limit to the amount of time for a stacked exposure before the effects of more time become limited? I know there's a clear difference between, say 1 hour and 2 hours, 10 and 20 etc, but would there still be a significant difference between 100 and 200, 200 and 400 etc?

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Posted by1 hour ago

So I have a pretty beefy performance laptop (17” ASUS ROG) that I’ve been using for my AP work thus far. It has plenty of processing power and memory to complete stacking and PS work efficiently. However, the trade off is obviously that the battery life isn’t great. It’s about 5 1/2 years old now and still working great, but the battery life is down to probably 1-2 hours. I don’t usually have access to dedicated power other than my power bank for the mount, which won’t support a laptop.

I’m wondering if it would be worth it to buy a cheaper laptop with better battery life for the purpose of supporting astronomy cameras, whether it’s auto-guiding or planetary work. Has anyone bought a laptop specifically for this purpose? What degree performance would required of it?

Or are there power solutions that would solve my battery life issue?

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Posted by12 hours ago

I'm using an ASI120MC on a 50mm guide scope for autoguiding. It's been a couple of years since I've done this, but I didn't used to get these errors. And I got good autoguiding. Now, the graph is all over the place and this error keeps popping up.

外围体育投注I am using a new laptop, which I've heard the ASI120MC may have some compatibility issues with. I updated its drivers, so it does connect just fine. It just seems really slow...

I should add, the images come out fine, I just worry about the error and the guide quality.

外围体育投注Edit: Never mind. It's not okay. It disconnects the camera when this happens, and stops guiding.

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Posted by9 hours ago

No matter how accurately I set my viewfinder I simply could not locate it when at full magnification (6” Dob can get to 300x). I got some video at a much lower magnification but I’m not even scratching the surface of the quality I could get at a higher one. I know Dob astrophotography is hard but I know others have done it with ASI cameras I never had this kind of issue when using my DSLR. I was so excited about my new camera but now I’m not sure it’s even worth keeping it. Is there something I’m missing? Should I try again? Or is it just too hard.

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Posted by17 hours ago

外围体育投注hey guys, i need a bit of advice shooting the Milky Way. i will be traveling to Greece in September and as i saw, true night will be around 21:00 and the teapot goes down around 23:30. now the thing is, it’s going to be a moony night. as far as i checked it’s waxing cresent. now here are my questions :

• can i shoot the Milky Way during a moony night ? will i get anything or don’t even bother ?

• i’ve read somewhere that using a polarising filter mighy help with the moon, is that true ?

外围体育投注• if i wait for the moon to set, the teapot with the galactic core also sets. is it worth trying the rest of the strip without the core ? will it look decent ?

外围体育投注i’m also posting my equipment in case it helps :

• sony a350 - 2.8f 16-50 mm lens

• vixen polarie startracker

• tripod, remote and polarising filter

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A place to ask questions & help others with anything related to astrophotography.
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Created Aug 30, 2019

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