Photographing Milky Way In Light Pollution

By | 22/10/2022


#one

Posted
eighteen April 2021 – 02:22 PM

So, this is my first “season” of astrophotography and I desire to effort my hand at the Milky way shortly.  I’ve Googled how to practise this in light polluted skies (I’m in Bortle viii.) by exposing the histogram to the right.  So, this is what I’m going to try apparently.

But, I’m just curious if anyone has any offset manus tips and, and perhaps more importantly, examples, of taking the Milky Way in calorie-free polluted skies.

Thanks

Edited by rj144, xviii April 2021 – 02:26 PM.

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#2



cybermayberry

Posted
18 April 2021 – 03:31 PM

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#iii



rj144

Posted
18 April 2021 – 03:36 PM

Thank you for the reply.  Yep, I sympathise that and have taken at least a dozen DSO photos and then far.

I’m specifically request nigh the Galaxy, since 1 exposes the histogram to the right which is a different procedure.

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#4



cybermayberry

Posted
18 April 2021 – 05:59 PM

Thanks for the answer.  Yes, I understand that and accept taken at to the lowest degree a dozen DSO photos so far.

I’m specifically asking nearly the Milky Mode, since one exposes the histogram to the right which is a different process.

The technique your referring to is for a single exposure with no tracking. If you can rails or guide and then you tin treat it the aforementioned as whatsoever other deep sky object, it’s just much wider field.  You end effect will have a much greater point to racket ratio.

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#v



rj144

Posted
eighteen April 2021 – 06:06 PM

The technique your referring to is for a unmarried exposure with no tracking. If you can runway or guide then you lot tin care for it the aforementioned every bit whatever other deep heaven object, information technology’due south just much wider field.  You cease issue will take a much greater bespeak to racket ratio.

Thanks, only I’ve read on a few sites, the ETTR is besides for stacks:

https://www.reddit.c…_your_backyard/

“And if yous want to get those cool “star trail” photos, some other peachy play a joke on is don’t utilise one very long exposure. Instead, take a hundred normal “ETTR” exposures, then combine them in software like StarStaX, to look like this”

http://world wide web.tommasodi…htscapes-part1/

“When you got the offset epitome post-obit the ETTR technique, take ten/15 shots more than! It is really important to do that, and nosotros will understand why in the next article.

Afterwards that, take three/4 dark frames: a dark frame is an image taken with all the same settings, just with lens cap on. It will be used by dedicated software to “remove” the residual racket.”

Edited by rj144, xviii April 2021 – 06:07 PM.

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#6



cybermayberry

Posted
18 April 2021 – 06:49 PM

You tin stack anything affair and it will assistance to meliorate your indicate to noise ratio.

https://www.youtube….h?v=3RH93UvP358 (talks at length almost proper exposure under a various levels of calorie-free pollution)

I encourage you endeavor to experiment yourself.

Practice a couple of sets with the aforementioned amount of full integration fourth dimension
and compare the results one purposely over exposed, and one with correct exposure.

Then choose which technique works for you the all-time.

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#7



rj144

Posted
18 Apr 2021 – 07:06 PM

You tin stack anything matter and information technology will help to meliorate your betoken to noise ratio.

https://www.youtube….h?v=3RH93UvP358 (talks at length nigh proper exposure under a diverse levels of light pollution)

I encourage yous try to experiment yourself.

Practice a couple of sets with the aforementioned amount of total integration time
and compare the results one purposely over exposed, and i with correct exposure.

Then choose which technique works for you the best.

Thank you very much.  I’ve already seen that video when I offset started and understand the math and physics completely.

I was just looking for first paw examples or tips from the folks here.

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#8



ks__observer

Posted
19 April 2021 – 02:01 AM

If you are stacking MW shots from a stock-still tripod you want curt exposures.

You don’t want to elevate signal by anymore pixels than necessary.

So the 500 rule for exposure for a single shot drops to, IMO, to 100 to 200.

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#9



rj144

Posted
nineteen April 2021 – 09:39 AM

If you are stacking MW shots from a fixed tripod yous desire brusque exposures.

You don’t want to drag signal past anymore pixels than necessary.

So the 500 rule for exposure for a single shot drops to, IMO, to 100 to 200.

Thanks.  I have a tracking mountain.

I’yard peculiarly interested in Milky Manner shots in heavy low-cal pollution every bit most examples on the net are taken in optimal conditions.  Particularly with the ETTR method.

Edited past rj144, 19 April 2021 – 09:43 AM.

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#10



erictheastrojunkie

Posted
19 Apr 2021 – 02:xxx PM

ETTR offers zip over doing a proper exposure, it’due south a poor technique that volition merely result in you blowing out highlights and losing colour data. All that matters is that y’all swamp read dissonance by a sufficient amount, then stack as many exposures equally y’all possibly can to generate as much signal as possible.

Bodily wide angle galaxy photography from bortle viii/nine is pretty much impossible, the structure of the milky manner is lost/washed out due to the low-cal pollution and the bodily galaxy offers low surface brightness (vs background heaven glow) that cannot exist recovered. Just the nature of the beast, non much you can exercise about it other than hop in your machine and bulldoze to darker skies. If by chance you can shoot from a light dome looking away from the light dome source, into nighttime skies, you lot may have improve luck.

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Source: https://www.cloudynights.com/topic/767063-photographing-the-milky-way-shortly-examples-with-high-light-pollution/